Exoplanet Reading Group - User contributions [en]

Current schedule

2015-06-08T21:19:15Z

Mbedell:

Current schedule

2015-06-01T21:13:06Z

Mbedell: /* Spring 2015 */

Current schedule

2015-05-18T21:26:57Z

Mbedell: /* Spring 2015 */

Current schedule

2015-05-04T22:15:36Z

Mbedell:

Current schedule

2015-05-04T22:15:21Z

Mbedell:

Current schedule

2015-04-27T21:52:45Z

Mbedell:

Current schedule

2015-04-20T21:44:11Z

Mbedell:

Current schedule

2015-04-20T21:43:33Z

Mbedell:

Current schedule

2015-04-13T21:42:08Z

Mbedell:

Current schedule

2015-04-06T21:31:52Z

Mbedell:

Current schedule

2015-03-31T15:10:15Z

Mbedell:

Winter 2015

2015-03-31T15:07:01Z

Mbedell:

'''1/5'''

Recent arXiv papers:

[http://arxiv.org/abs/1412.5674v1 Vanderburg et al. - new super-Earth discovered from K2 data]

[http://arxiv.org/abs/1412.8687 Dressing et al. - mass measurement of Kepler-93b]

[http://arxiv.org/abs/1501.00013 Ngo et al. - Friends of Hot Jupiters direct imaging survey]

'''1/12''', 1:30 PM, LASR conference room

Talk by Michael Meyer (UTH Zurich): "Building a Predictive Theory of Planet Formation: Extrapolation versus Phenomenology in the Era of Direct Imaging."

'''1/26'''

Fred Ciesla on his latest publication: [http://arxiv.org/abs/1501.01878 Sulfurization of Iron in the Dynamic Solar Nebula and Implications for Planetary Compositions]

Recent results on the XO-2 system: [http://arxiv.org/abs/1501.01424 Demasso et al. 2015], [http://arxiv.org/abs/1501.02167 Teske et al. 2015]

'''2/2'''

Recent arXiv papers:

[http://arxiv.org/abs/1501.01288 Mazeh et al. - Kepler photometric amplitudes & spin-orbit alignments]

[http://arxiv.org/abs/1501.06227v1 Campante et al. - Kepler-444 system]

'''2/9'''

[http://arxiv.org/abs/1502.01952 Leconte et al. - asynchronous rotation of low-mass, close-in planets]

[http://arxiv.org/abs/1502.01946 Glein et al. - serpentinization & H2 generation on Enceladus]

'''2/16'''

[http://arxiv.org/abs/1502.02132 Montanes-Rodriguez et al. - transmission spectroscopy of Jupiter]

[http://arxiv.org/abs/1412.5575 Wordsworth - Atmospheric heat redistribution and collapse on tidally locked rocky planets]

[http://arxiv.org/abs/1502.00004 Cowan et al. - ExoPAG white paper on transmission spectroscopy]

'''2/23'''

[http://arxiv.org/abs/1502.04260 Pfyffer et al. - Theoretical models of planetary system formation. II. Post-formation evolution]

[http://arxiv.org/abs/1502.04713 Schwarz et al. - Evidence against a strong thermal inversion in HD 209458 b from high-dispersion spectroscopy]

[http://arxiv.org/abs/1502.05035 Fleming et al. - The APOGEE Spectroscopic Survey of Kepler Planet Hosts: Feasibility, Efficiency, and First Results]

[http://arxiv.org/abs/1502.05611 Tang & Dauphas - Low 60Fe abundance in Semarkona and Sahara 99555]

'''3/2'''

Titos Matsakos on "Classification of magnetized star-planet interactions: bow shocks, tails, and inspiraling flows"

'''3/9'''

Edwin Kite on [http://online.kitp.ucsb.edu/online/evoplanets_c15/ the KITP conference at UCSB]

[http://arxiv.org/abs/1502.06970 Schwartz & Cowan - energy budgets of hot Jupiters]

[http://arxiv.org/abs/1503.01976 Anglada-Escude & Tuomi - GJ 581d returns]

'''3/16'''

[http://arxiv.org/abs/1503.02565 Robertson et al. - maybe GJ 581d doesn't return after all]

[http://arxiv.org/abs/1503.03539 Barman et al. - directly imaged spectra of HR 8799b]

Winter 2015

2015-03-31T15:06:31Z

Mbedell: Created page with " == Winter 2015 == '''1/5''' Recent arXiv papers: [http://arxiv.org/abs/1412.5674v1 Vanderburg et al. - new super-Earth discovered from K2 data] [http://arxiv.org/abs/1412.86..."

== Winter 2015 ==

'''1/5'''

Recent arXiv papers:

[http://arxiv.org/abs/1412.5674v1 Vanderburg et al. - new super-Earth discovered from K2 data]

[http://arxiv.org/abs/1412.8687 Dressing et al. - mass measurement of Kepler-93b]

[http://arxiv.org/abs/1501.00013 Ngo et al. - Friends of Hot Jupiters direct imaging survey]

'''1/12''', 1:30 PM, LASR conference room

Talk by Michael Meyer (UTH Zurich): "Building a Predictive Theory of Planet Formation: Extrapolation versus Phenomenology in the Era of Direct Imaging."

'''1/26'''

Fred Ciesla on his latest publication: [http://arxiv.org/abs/1501.01878 Sulfurization of Iron in the Dynamic Solar Nebula and Implications for Planetary Compositions]

Recent results on the XO-2 system: [http://arxiv.org/abs/1501.01424 Demasso et al. 2015], [http://arxiv.org/abs/1501.02167 Teske et al. 2015]

'''2/2'''

Recent arXiv papers:

[http://arxiv.org/abs/1501.01288 Mazeh et al. - Kepler photometric amplitudes & spin-orbit alignments]

[http://arxiv.org/abs/1501.06227v1 Campante et al. - Kepler-444 system]

'''2/9'''

[http://arxiv.org/abs/1502.01952 Leconte et al. - asynchronous rotation of low-mass, close-in planets]

[http://arxiv.org/abs/1502.01946 Glein et al. - serpentinization & H2 generation on Enceladus]

'''2/16'''

[http://arxiv.org/abs/1502.02132 Montanes-Rodriguez et al. - transmission spectroscopy of Jupiter]

[http://arxiv.org/abs/1412.5575 Wordsworth - Atmospheric heat redistribution and collapse on tidally locked rocky planets]

[http://arxiv.org/abs/1502.00004 Cowan et al. - ExoPAG white paper on transmission spectroscopy]

'''2/23'''

[http://arxiv.org/abs/1502.04260 Pfyffer et al. - Theoretical models of planetary system formation. II. Post-formation evolution]

[http://arxiv.org/abs/1502.04713 Schwarz et al. - Evidence against a strong thermal inversion in HD 209458 b from high-dispersion spectroscopy]

[http://arxiv.org/abs/1502.05035 Fleming et al. - The APOGEE Spectroscopic Survey of Kepler Planet Hosts: Feasibility, Efficiency, and First Results]

[http://arxiv.org/abs/1502.05611 Tang & Dauphas - Low 60Fe abundance in Semarkona and Sahara 99555]

'''3/2'''

Titos Matsakos on "Classification of magnetized star-planet interactions: bow shocks, tails, and inspiraling flows"

'''3/9'''

Edwin Kite on [http://online.kitp.ucsb.edu/online/evoplanets_c15/ the KITP conference at UCSB]

[http://arxiv.org/abs/1502.06970 Schwartz & Cowan - energy budgets of hot Jupiters]

[http://arxiv.org/abs/1503.01976 Anglada-Escude & Tuomi - GJ 581d returns]

'''3/16'''

[http://arxiv.org/abs/1503.02565 Robertson et al. - maybe GJ 581d doesn't return after all]

[http://arxiv.org/abs/1503.03539 Barman et al. - directly imaged spectra of HR 8799b]

Current schedule

2015-03-31T15:05:58Z

Mbedell:

Current schedule

2015-03-31T15:05:25Z

Mbedell:

Current schedule

2015-03-16T21:24:05Z

Mbedell: /* Winter 2014 */

Current schedule

2015-03-09T21:24:56Z

Mbedell: /* Winter 2014 */

Current schedule

2015-02-23T22:05:39Z

Mbedell: /* Winter 2014 */

Current schedule

2015-02-16T22:39:26Z

Mbedell:

Current schedule

2015-02-09T22:21:08Z

Mbedell:

Current schedule

2015-02-09T22:20:43Z

Mbedell:

Current schedule

2015-02-02T22:27:03Z

Mbedell: /* Winter 2014 */

Current schedule

2015-01-27T01:11:06Z

Mbedell:

Current schedule

2015-01-27T01:10:37Z

Mbedell:

Current schedule

2015-01-05T22:26:49Z

Mbedell:

Current schedule

2015-01-05T22:25:21Z

Mbedell:

Current schedule

2015-01-05T22:24:46Z

Mbedell:

2013-2014

2015-01-05T22:23:49Z

Mbedell: Created page with "This is an archived year. Or maybe you want Current_schedule. == Fall 2013 == 10/14/13 Laura Kreidberg, "Clouds in the atmosphere of the super-Earth exoplanet GJ 1214b"..."

This is an archived year. Or maybe you want [[Current_schedule]].

== Fall 2013 ==

10/14/13

Laura Kreidberg, "Clouds in the atmosphere of the super-Earth exoplanet GJ 1214b".

[[10/25/13

Adam Showman, "Atmospheric circulation of extrasolar giant planets", DoGS Friday Seminar.]]

[[10/28/13

Ray Pierrehumbert, "The Puzzle of Low-Density Super-Earths", NAI lecture, [http://astrobiology.nasa.gov/seminars/featured-seminar-channels/nai-directors-seminar-series/2013/10/28/the-puzzle-of-low-density-super-earths/].]]

10/28/13

Gwenaël Boué, "Spin-orbit angle in compact planetary systems perturbed by an inclined companion".

11/11/13

'''[[Mini-workshop: Exoplanets after Kepler (Nov. 11, 2013)]]'''

[[11/20/13 *Wednesday*

BSLC 001, 3 pm

Ruth Murray-Clay gives the Astro Colloquium[http://astro.uchicago.edu/events/astronomy-colloquium.php#id482]

Origins of Gas Giant Planets
]]

11/25/13

Eric Gaidos from U of Hawaii, "A Thermometer for Goldilocks: Accurate Temperatures of Kepler M Dwarfs and Their Planets".

12/16/13

Tobias Schmidt from AIU Jena, "Mass determination of young directly imaged planet candidates and brown dwarfs"

== Winter 2014 ==

1/13/14

Feng Ding, [http://www.nature.com/ngeo/journal/v7/n1/full/ngeo2020.html Common 0.1 bar tropopause in thick atmospheres set by pressure-dependent infrared transparency], Robinson & Caitling (2014)

1/27/14

Kat Deck, MIT

[[1/29/14 *Wednesday*, BSLC 115, 3:00 PM

Bruce Macintosh gives the Astronomy colloquium,
[http://astro.uchicago.edu/events/astronomy-colloquium.php#id510 Direct Imaging of Extrasolar Planets] ]]

2/3/14 **off-schedule**

Nick Cowan, "[http://arxiv.org/abs/1401.0720 Water Cycling Between Ocean and Mantle: Super-Earths Need Not be Waterworlds]"

2/10/14

No meeting due to Exoclimes conference.

2/24/14

Megan Bedell, "[http://arxiv.org/abs/0909.2299 The peculiar solar composition and its possible relation to planet formation]"

3/10/14

Ray Pierrehumbert, "[http://adsabs.harvard.edu/abs/2013E%26PSL.375..312K Effective hydrodynamic hydrogen escape from an early Earth atmosphere inferred from high-accuracy numerical simulation]"

== Spring 2014 ==

4/7/14

Meeting at Northwestern, all day. Please sign up for carpool via google docs (contact Dan Fabrycky for info)

4/14/14
Robin Wordsworth, "[http://adsabs.harvard.edu/abs/2014ApJ...785L..20W Abiotic Oxygen-dominated Atmospheres on Terrestrial Habitable Zone Planets]"

4/21

Ray Pierrehumbert, Transit depth workshop part I

[[4/23, *Wednesday*, BSLC 115, 3:00 PM

Daniel Huber gives the Astro colloquium, [http://astro.uchicago.edu/events/astronomy-colloquium_2014.php#id532 Asteroseismology and Exoplanets: A Kepler Success Story]]]

4/28

Ray Pierrehumbert, Transit depth workshop part II

5/8, *Thursday*, Hinds 176 (Goldsmith room), 3:00 PM

David Kipping, "Asterodensity Profiling: A New Tool for Studying Exoplanets"

5/12

Seth Teitler, "[http://arxiv.org/abs/1403.5860 Why is there a Dearth of Close-In Planets around Fast-Rotating stars?]"

6/2, *2 PM*

Ana Uribe, TBD

[[ 6/4, *Wednesday*, KPTC 206, 12:15 PM

Daniel Fabrycky, Computations in Science seminar, "[http://mrsec.uchicago.edu/Comp_in_Sci/ Dynamics of Planetary Systems]" ]]

[[ 6/4, *Wednesday*, BSLC 115, 3:00 PM

Heather Knutson, Astro Colloquium (topic TBA)]]

6/9

Cezary Migaszewski (Torun, Poland) -- planetary dynamics

6/23

Jun Yang, Strong Dependence of the Inner Edge of the Habitable Zone on Planetary Rotation Rate

== Summer 2014 ==

7/7

Arxiv.org recent papers

7/21

Arxiv.org recent papers: the bulk compositions of super-Earths; a transiting planet near the snow line; and the 1% of scientific publishing

8/4, 8/18

Arxiv.org recent papers

8/25

Courtney Dressing (Harvard)

Frequency of potentially habitable planets around M dwarfs from Kepler data

9/15

Arxiv.org recent papers

2012-2013

2015-01-05T22:21:31Z

Mbedell: Created page with "This is an archived year. Or maybe you want Current_schedule. == Fall 2012 == 10/1/12 Introductory Meeting 3 minutes from each of the ~20 attendees TAAC 67 [[ 10/2/..."

This is an archived year. Or maybe you want [[Current_schedule]].

== Fall 2012 ==

10/1/12

Introductory Meeting

3 minutes from each of the ~20 attendees

TAAC 67

[[ 10/2/12
"Fast track to find an inhabited exoplanet" Brinson Lecture, Adler Planetarium
David Charbonneau from Harvard University ]]

[[ 10/3/12
"How to Find the Nearest Habitable Exoplanets" Astro Dept. Colloquium
David Charbonneau from Harvard University ]]

[[ 10/8/12
"Characterizing Super-Earth Exoplanets with Transmission Spectroscopy:
Applications to GJ1214b" Theory underlying observations of transits.
Bjoern Benneke visitor from MIT ]]

[[ 10/11/12
"Transit Anomalies in Extrasolar Planets"
Geza Kovacs visitor from Konkoly Observatory, Budapest ]]

10/15/12

[http://www.nature.com/nature/journal/v487/n7408/full/nature11301.html "Alignment of the stellar spin with the orbits of a three-planet system"] Sanchis-Ojeda, Fabrycky, Winn, et al. 2012

[http://arxiv.org/abs/1209.4362 "Planet-Planet Eclipse and the Rossiter-McLaughlin Effect of a Multiple Transiting System: Joint Analysis of the Subaru Spectroscopy and the Kepler Photometry"] Hirano et al. 2012

Dan Fabrycky

Hinds 451

[[ 10/26/12 @ 3:30 "Atmospheric chemistry of water worlds" seminar
by Ray Pierrehumbert in Hinds 101 ]]

10/29/12

[http://www.nature.com/nature/journal/vaop/ncurrent/full/nature11572.html "An Earth-mass planet orbiting α Centauri B"] Dumusque et al. 2012

Laura Kreidberg

Hinds 451

[[Tues. 11/6/12 @ 1:00 "Indication of insensitivity of weathering behavior and
habitable zone to surface land fraction" practice seminar by Dorian
Abbot in Hinds 451]]

11/12/12

40 min: [http://arxiv.org/abs/1207.4245 "Two nearby sub-Earth-sized exoplanet candidates in the GJ 436 system"] Stevenson et al. 2012; Kevin Stevenson

20 min: [http://www.sciencemag.org/content/337/6101/1511 "Kepler-47: A Transiting Circumbinary Multiplanet System"] Orosz et al. 2012; Daniel Koll

[[ 11/14/12 "Infrared Spectroscopy of Extrasolar Planetary Atmospheres" Astronomy Colloquium
Drake Deming visitor from University of Maryland, College Park ]]

11/26/12

[http://adsabs.harvard.edu/abs/2011ApJ...730L...9L "Discovery of a Candidate for the Coolest Known Brown Dwarf"] Luhman et al. 2011

[http://adsabs.harvard.edu/abs/2011ApJ...739...81L "Discovery of a Companion at the L/T Transition with the Wide-field Infrared Survey Explorer"] Loutrel et al. 2011

Camilo Delgado

12/10/12

[http://arxiv.org/abs/1211.3744 "Direct Imaging Discovery of a `Super-Jupiter' Around the late B-Type Star Kappa And"] Carson et al. 2012

Joe Carson visitor from College of Charleston

== Winter 2013 ==

1/7/13

[http://arxiv.org/abs/1211.2095 "Gravoturbulent Planetesimal Formation: The Positive Effect of long-lived Zonal Flows"] Dittrich, Klahr, and Johansen 2012

Ana Uribe

1/22/13

Gwenael Boue
[http://arxiv.org/abs/1211.5603 "Planets Near Mean-Motion Resonances"] Petrovich, Tremaine, & Malhotra 2012

[[ 1/28/13

Mars and the problem of planetary habitability

visitor Edwin Kite from Caltech

LOCATION: Hinds 101, 3 pm.]]

2/5/13

[http://arxiv.org/abs/1301.3145 "Planetary System Disruption by Galactic Perturbations to Wide Binary Stars"] Kaib, Raymond, & Duncan 2013

Nathan Kaib

2/19/13

[http://arxiv.org/abs/1203.1922 "On the Stability of Super-Earth Atmospheres"] Heng & Kopparla 2012

Jun Yang

3/5/13

[http://www.nature.com/nature/journal/v494/n7438/full/nature11914.html "A sub-Mercury-sized exoplanet"] Barclay et al. 2013

Daniel Koll

[[ 3/12/13
Field trip to Northwestern U to see
Joshua Carter
[https://www.google.com/calendar/render?eid=dnFkNGhzbHQ3MDAzaWxkOHRzOWExcTFpNDggZmlibHAwajhnajhpNjk4ZnFtbnZrbDhkYWtAZw&ctz=America/Chicago&pli=1&sf=true&output=xml "Photodynamics: revealing the secrets of the lowest-mass planets and stars"] ]]

[[ 3/13/13

Astrophysics Colloquium: The Road to 100 Earths

Debra Fischer from Yale

LOCATION: BSLC 115, 3:30 pm.]]

3/19/13

[http://arxiv.org/abs/1302.1141 "Infrared Transmission Spectroscopy... using Wide-Field Camera 3 on HST"] Deming et al. 2013

Laura Kreidberg

== Spring 2013 ==

4/1/13 -- Open discussion of all attendees. Please give an update to your research or interests.

4/15/13 Duration Drifts in Kepler Sean Mills

4/29/13 Manuscript in Prep., Dorian Abott / Jun Yang

[[ 5/10/13

Joe Kirschvink from Caltech

Geosci Colloquium, 3 pm.]]

5/13/13

[http://arxiv.org/abs/1303.7079 "3D climate modeling of close-in land planets: Circulation patterns, climate moist bistability and habitability"]

Rob Wordsworth

Tuesday (avoiding Memorial Day) 5/28/13

[http://adsabs.harvard.edu/abs/2013ApJ...768..143Z "Low-mass Planets in Protoplanetary Disks with Net Vertical Magnetic Fields: The Planetary Wake and Gap Opening"] Zhu, Stone, and Rafikov 2013

Alissa Bans

6/10/13

[http://arxiv.org/abs/1305.4180 "Transits and occultations of an Earth-sized planet in an 8.5-hour orbit"] Sanchis-Ojeda et al. 2013

Roberto Sanchis-Ojeda visiting from MIT

6/12/13

Tutorial on tides in solid bodies

Gwenael Boue

== Summer 2013 ==

6/17/13

"[[Clouds in Wacky Climates]]," a talk to be publicly presented at the Chapman conference on planetary atmospheres.

Dorian Abbot

6/24/13

[http://adsabs.harvard.edu/doi/10.1093/mnras/stt895 "Catastrophic evaporation of rocky planets"] Perez-Becker & Chiang

Arieh Konigl

[[7/8/13

Talk: Planet Hunters: Searching for Exoplanets with 500,000 Eyes

Meg Schwamb, visiting from Yale University]]

7/22/13

[http://arxiv.org/abs/1306.3266 "Water loss from terrestrial planets with CO2-rich atmospheres."] Wordsworth & Pierrehumbert

Robin Wordsworth

8/5/13

[http://www.sciencemag.org/content/early/2013/07/17/science.1239560 "Imaging of the CO Snow Line in a Solar Nebula Analog"]

Laura Kreidberg

8/19/13

[http://arxiv.org/abs/1308.1670 Tidally Locked Exoplanets] -- Mills & Abbot, in press at ApJL

Sean Mills

8/26/13

Free-form meeting --> talk about your own work or summarize a recent paper that interested you.

[[9/9/13

Greg Gilbert]]

9/23/13

Water vapor, Clouds, and Thermal Emission of Tidally Locked Terrestrial Planets, by Yang, Abbot, Cowan

Jun Yang

Main Page

2015-01-05T22:17:28Z

Mbedell:

== Exoplanet Reading Group ==

What we do: Those interested in Extrasolar Planets at U of Chicago get together to discuss the latest papers. Papers that are particularly exciting, our own papers, and papers that motivate our research are all on the table.

Who we are: Faculty members, postdocs, grad students, or even visitors, attend and may lead the discussion. Due to the topic of the group, we are mainly drawn from the Astrophysics and Geosciences departments.

When and where: We generally meet weekly on Mondays at 3 pm. The forum for these meetings will typically be 451 Hinds.

Sign up [https://cosmo.uchicago.edu/mailman/listinfo/exoplanet here] for the email list, if you are local and want to hear about meeting announcements.

== Click for: '''[[Current schedule]]''' ==

Past years:
[[2011-2012]], [[2012-2013]], [[2013-2014]]

Fall 2014

2015-01-05T22:16:00Z

Mbedell: Created page with " '''9/29''' Recent arXiv papers: [http://arxiv.org/abs/1409.7566 WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system - Neveu-VanMalle et al.] [http://arxiv.org/..."

'''9/29'''

Recent arXiv papers:

[http://arxiv.org/abs/1409.7566 WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system - Neveu-VanMalle et al.]

[http://arxiv.org/abs/1409.0978 Short dissipation times of proto-planetary discs - an artifact of selection effects? - Pfalzner et al.]

'''10/13'''

Kevin Stevenson and Laura Kreidberg on recent full-phase-curve observations:

[http://arxiv.org/abs/1410.2241 Paper 1]. [http://arxiv.org/abs/1410.2255 Paper 2], [http://arxiv.org/abs/1410.2382 Paper 3]

'''10/17'''

Jonathan Fortney

Geosci colloquium: "Towards Understanding the Composition of Exoplanets"

'''10/20'''

Recent papers:

[http://arxiv.org/pdf/1410.4199.pdf Dan's ARAA review paper]

[http://arxiv.org/abs/1410.2604 Dawson & Chiang]

[http://onlinelibrary.wiley.com/doi/10.1002/2014EO250001/abstract Nick Cowan's planetary perspective on exoplanet science]

'''10/27'''

Dong Lai (Cornell)

[also giving the 10/29 Astro colloquium]

Star-Disk-Binary Interaction, Lidov-Kozai-Spin Chaos, and Formation of Misaligned Hot Jupiters

I will discuss the possibility of primordial misalignment in protoplanetary disks, chaotic spin evolution during Lidov-Kozai cycles, and high-eccetricty migration, all in connection with the observations and formation of hot Jupiter systems.

References:

(1) Lai 2014 MNRAS:
http://adsabs.harvard.edu/abs/2014MNRAS.440.3532L

(2) Storch, Anderson and Lai 2014 Science:
http://www.sciencemag.org/content/345/6202/1317.abstract

'''11/7''', Friday 1:30 pm, LASR conference room

Fabienne Bastien (Sagan Fellow, Penn State)

Enhancing Exoplanet Discovery and Characterization through Stellar Photometric “Flicker”

As a result of the high precision and cadence of surveys like MOST, CoRoT, and Kepler, we may now directly observe the very low-level light variations arising from stellar granulation in cool stars. In this talk, we discuss how this enables us to more accurately determine the physical properties of Sun-like stars, to understand the nature of surface convection and its connection to activity, and to better determine the properties of planets around cool stars. Indeed, such sensitive photometric "flicker" variations are now within reach for thousands of stars, and we estimate that upcoming missions like TESS will enable such measurements for ~100 000 stars. We present recent results that tie “flicker” to granulation and enable a simple measurement of stellar surface gravity with a precision of 0.1 dex. We use this, together and solely with two other simple ways of characterizing the stellar photometric variations in a high quality light curve, to construct an evolutionary diagram for Sun-like stars from the Main Sequence on towards the red giant branch. We discuss further work that correlates “flicker” with stellar density, allowing the application of astrodensity profiling techniques used in exoplanet characterization to many more stars. We also present results suggesting that the granulation of F stars must be magnetically suppressed in order to fit observations. Finally, we show that we may quantitatively predict a star's RV jitter using our evolutionary diagram, permitting the use of discovery light curves to help prioritize follow-up observations of transiting exoplanets.

'''11/10'''

Recent results:

[http://phys.org/news/2014-11-birth-planets-revealed-astonishing-alma.html HL Tau imaging from ALMA]

Jun Yang & Dorian Abbott on their latest paper: [http://arxiv.org/abs/1411.0540 Water Trapping on Tidally Locked Terrestrial Planets Requires Special Conditions].

'''11/17'''

Philae's landing on Comet 67P

[http://arxiv.org/abs/1411.3724 The MINERVA project for automated RV planet-finding]

[http://arxiv.org/abs/1411.1754 Prospects for transit observations with JWST]

'''11/24'''

Recent arXiv papers

'''12/1'''

Recent papers:

[http://arxiv.org/pdf/1411.7412.pdf Luger & Barnes - extreme water loss on planets around M dwarfs]

[http://arxiv.org/pdf/1411.7660.pdf de Mooij et al. - ground-based transit observations of 55 Cnc e]

[http://arxiv.org/pdf/1411.7761.pdf Chavez et al. - Kepler circumbinary planet stability]

[http://arxiv.org/pdf/1411.5066.pdf Batygin et al. - Chaotic disintegration of the inner solar system]

[http://arxiv.org/pdf/1411.7028.pdf Kipping et al. - Kepler's exo-moons (or the lack thereof)]

[http://arxiv.org/pdf/1411.7404.pdf Deming et al. - Spitzer secondary eclipse observations & instrumental systematics]

Current schedule

2015-01-05T22:15:48Z

Mbedell:

Current schedule

2015-01-05T22:15:10Z

Mbedell:

Sign up [https://cosmo.uchicago.edu/mailman/listinfo/exoplanet here] for the email list, if you are local and want to hear about meeting announcements.

Meetings are usually in the upper geosci conference room (Hinds 451). They take place generally on Mondays at 3 pm.

Other exoplanet-themed talks and events at UChicago, beyond this reading group, are shown in double brackets.

Go to: '''[[Fall 2012]]'''

Go to: '''[[Winter 2013]]'''

Go to: '''[[Spring 2013]]'''

Go to: '''[[Summer 2013]]'''

Go to: '''[[Fall 2013]]'''

Go to: '''[[Winter 2014]]'''

Go to: '''[[Spring 2014]]'''

Go to: '''[[Summer 2014]]'''

Go to: '''[[Fall 2014]]'''

'''1/5'''

Recent arXiv papers:

[http://arxiv.org/abs/1412.5674v1 Vanderburg et al. - new super-Earth discovered from K2 data]

[http://arxiv.org/abs/1412.8687 Dressing et al. - mass measurement of Kepler-93b]

[http://arxiv.org/abs/1501.00013 Ngo et al. - Friends of Hot Jupiters direct imaging survey]

'''9/29'''

Recent arXiv papers:

[http://arxiv.org/abs/1409.7566 WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system - Neveu-VanMalle et al.]

[http://arxiv.org/abs/1409.0978 Short dissipation times of proto-planetary discs - an artifact of selection effects? - Pfalzner et al.]

'''10/13'''

Kevin Stevenson and Laura Kreidberg on recent full-phase-curve observations:

[http://arxiv.org/abs/1410.2241 Paper 1]. [http://arxiv.org/abs/1410.2255 Paper 2], [http://arxiv.org/abs/1410.2382 Paper 3]

'''10/17'''

Jonathan Fortney

Geosci colloquium: "Towards Understanding the Composition of Exoplanets"

'''10/20'''

Recent papers:

[http://arxiv.org/pdf/1410.4199.pdf Dan's ARAA review paper]

[http://arxiv.org/abs/1410.2604 Dawson & Chiang]

[http://onlinelibrary.wiley.com/doi/10.1002/2014EO250001/abstract Nick Cowan's planetary perspective on exoplanet science]

'''10/27'''

Dong Lai (Cornell)

[also giving the 10/29 Astro colloquium]

Star-Disk-Binary Interaction, Lidov-Kozai-Spin Chaos, and Formation of Misaligned Hot Jupiters

I will discuss the possibility of primordial misalignment in protoplanetary disks, chaotic spin evolution during Lidov-Kozai cycles, and high-eccetricty migration, all in connection with the observations and formation of hot Jupiter systems.

References:

(1) Lai 2014 MNRAS:
http://adsabs.harvard.edu/abs/2014MNRAS.440.3532L

(2) Storch, Anderson and Lai 2014 Science:
http://www.sciencemag.org/content/345/6202/1317.abstract

'''11/7''', Friday 1:30 pm, LASR conference room

Fabienne Bastien (Sagan Fellow, Penn State)

Enhancing Exoplanet Discovery and Characterization through Stellar Photometric “Flicker”

As a result of the high precision and cadence of surveys like MOST, CoRoT, and Kepler, we may now directly observe the very low-level light variations arising from stellar granulation in cool stars. In this talk, we discuss how this enables us to more accurately determine the physical properties of Sun-like stars, to understand the nature of surface convection and its connection to activity, and to better determine the properties of planets around cool stars. Indeed, such sensitive photometric "flicker" variations are now within reach for thousands of stars, and we estimate that upcoming missions like TESS will enable such measurements for ~100 000 stars. We present recent results that tie “flicker” to granulation and enable a simple measurement of stellar surface gravity with a precision of 0.1 dex. We use this, together and solely with two other simple ways of characterizing the stellar photometric variations in a high quality light curve, to construct an evolutionary diagram for Sun-like stars from the Main Sequence on towards the red giant branch. We discuss further work that correlates “flicker” with stellar density, allowing the application of astrodensity profiling techniques used in exoplanet characterization to many more stars. We also present results suggesting that the granulation of F stars must be magnetically suppressed in order to fit observations. Finally, we show that we may quantitatively predict a star's RV jitter using our evolutionary diagram, permitting the use of discovery light curves to help prioritize follow-up observations of transiting exoplanets.

'''11/10'''

Recent results:

[http://phys.org/news/2014-11-birth-planets-revealed-astonishing-alma.html HL Tau imaging from ALMA]

Jun Yang & Dorian Abbott on their latest paper: [http://arxiv.org/abs/1411.0540 Water Trapping on Tidally Locked Terrestrial Planets Requires Special Conditions].

'''11/17'''

Philae's landing on Comet 67P

[http://arxiv.org/abs/1411.3724 The MINERVA project for automated RV planet-finding]

[http://arxiv.org/abs/1411.1754 Prospects for transit observations with JWST]

'''11/24'''

Recent arXiv papers

'''12/1'''

Recent papers:

[http://arxiv.org/pdf/1411.7412.pdf Luger & Barnes - extreme water loss on planets around M dwarfs]

[http://arxiv.org/pdf/1411.7660.pdf de Mooij et al. - ground-based transit observations of 55 Cnc e]

[http://arxiv.org/pdf/1411.7761.pdf Chavez et al. - Kepler circumbinary planet stability]

[http://arxiv.org/pdf/1411.5066.pdf Batygin et al. - Chaotic disintegration of the inner solar system]

[http://arxiv.org/pdf/1411.7028.pdf Kipping et al. - Kepler's exo-moons (or the lack thereof)]

[http://arxiv.org/pdf/1411.7404.pdf Deming et al. - Spitzer secondary eclipse observations & instrumental systematics]

(Date TBD

Nicolas Dauphas, Geochemical perspective on planet formation.)

Current schedule

2014-12-02T15:50:40Z

Mbedell:

Sign up [https://cosmo.uchicago.edu/mailman/listinfo/exoplanet here] for the email list, if you are local and want to hear about meeting announcements.

Meetings are usually in the upper geosci conference room (Hinds 451). They take place generally on Mondays at 3 pm.

Other exoplanet-themed talks and events at UChicago, beyond this reading group, are shown in double brackets.

Go to: '''[[Fall 2012]]'''

Go to: '''[[Winter 2013]]'''

Go to: '''[[Spring 2013]]'''

Go to: '''[[Summer 2013]]'''

Go to: '''[[Fall 2013]]'''

Go to: '''[[Winter 2014]]'''

Go to: '''[[Spring 2014]]'''

Go to: '''[[Summer 2014]]'''

'''9/29'''

Recent arXiv papers:

[http://arxiv.org/abs/1409.7566 WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system - Neveu-VanMalle et al.]

[http://arxiv.org/abs/1409.0978 Short dissipation times of proto-planetary discs - an artifact of selection effects? - Pfalzner et al.]

'''10/13'''

Kevin Stevenson and Laura Kreidberg on recent full-phase-curve observations:

[http://arxiv.org/abs/1410.2241 Paper 1]. [http://arxiv.org/abs/1410.2255 Paper 2], [http://arxiv.org/abs/1410.2382 Paper 3]

'''10/17'''

Jonathan Fortney

Geosci colloquium: "Towards Understanding the Composition of Exoplanets"

'''10/20'''

Recent papers:

[http://arxiv.org/pdf/1410.4199.pdf Dan's ARAA review paper]

[http://arxiv.org/abs/1410.2604 Dawson & Chiang]

[http://onlinelibrary.wiley.com/doi/10.1002/2014EO250001/abstract Nick Cowan's planetary perspective on exoplanet science]

'''10/27'''

Dong Lai (Cornell)

[also giving the 10/29 Astro colloquium]

Star-Disk-Binary Interaction, Lidov-Kozai-Spin Chaos, and Formation of Misaligned Hot Jupiters

I will discuss the possibility of primordial misalignment in protoplanetary disks, chaotic spin evolution during Lidov-Kozai cycles, and high-eccetricty migration, all in connection with the observations and formation of hot Jupiter systems.

References:

(1) Lai 2014 MNRAS:
http://adsabs.harvard.edu/abs/2014MNRAS.440.3532L

(2) Storch, Anderson and Lai 2014 Science:
http://www.sciencemag.org/content/345/6202/1317.abstract

'''11/7''', Friday 1:30 pm, LASR conference room

Fabienne Bastien (Sagan Fellow, Penn State)

Enhancing Exoplanet Discovery and Characterization through Stellar Photometric “Flicker”

As a result of the high precision and cadence of surveys like MOST, CoRoT, and Kepler, we may now directly observe the very low-level light variations arising from stellar granulation in cool stars. In this talk, we discuss how this enables us to more accurately determine the physical properties of Sun-like stars, to understand the nature of surface convection and its connection to activity, and to better determine the properties of planets around cool stars. Indeed, such sensitive photometric "flicker" variations are now within reach for thousands of stars, and we estimate that upcoming missions like TESS will enable such measurements for ~100 000 stars. We present recent results that tie “flicker” to granulation and enable a simple measurement of stellar surface gravity with a precision of 0.1 dex. We use this, together and solely with two other simple ways of characterizing the stellar photometric variations in a high quality light curve, to construct an evolutionary diagram for Sun-like stars from the Main Sequence on towards the red giant branch. We discuss further work that correlates “flicker” with stellar density, allowing the application of astrodensity profiling techniques used in exoplanet characterization to many more stars. We also present results suggesting that the granulation of F stars must be magnetically suppressed in order to fit observations. Finally, we show that we may quantitatively predict a star's RV jitter using our evolutionary diagram, permitting the use of discovery light curves to help prioritize follow-up observations of transiting exoplanets.

'''11/10'''

Recent results:

[http://phys.org/news/2014-11-birth-planets-revealed-astonishing-alma.html HL Tau imaging from ALMA]

Jun Yang & Dorian Abbott on their latest paper: [http://arxiv.org/abs/1411.0540 Water Trapping on Tidally Locked Terrestrial Planets Requires Special Conditions].

'''11/17'''

Philae's landing on Comet 67P

[http://arxiv.org/abs/1411.3724 The MINERVA project for automated RV planet-finding]

[http://arxiv.org/abs/1411.1754 Prospects for transit observations with JWST]

'''11/24'''

Recent arXiv papers

'''12/1'''

Recent papers:

[http://arxiv.org/pdf/1411.7412.pdf Luger & Barnes - extreme water loss on planets around M dwarfs]

[http://arxiv.org/pdf/1411.7660.pdf de Mooij et al. - ground-based transit observations of 55 Cnc e]

[http://arxiv.org/pdf/1411.7761.pdf Chavez et al. - Kepler circumbinary planet stability]

[http://arxiv.org/pdf/1411.5066.pdf Batygin et al. - Chaotic disintegration of the inner solar system]

[http://arxiv.org/pdf/1411.7028.pdf Kipping et al. - Kepler's exo-moons (or the lack thereof)]

[http://arxiv.org/pdf/1411.7404.pdf Deming et al. - Spitzer secondary eclipse observations & instrumental systematics]

(Date TBD

Nicolas Dauphas, Geochemical perspective on planet formation.)

Current schedule

2014-12-02T15:50:14Z

Mbedell:

Sign up [https://cosmo.uchicago.edu/mailman/listinfo/exoplanet here] for the email list, if you are local and want to hear about meeting announcements.

Meetings are usually in the upper geosci conference room (Hinds 451). They take place generally on Mondays at 3 pm.

Other exoplanet-themed talks and events at UChicago, beyond this reading group, are shown in double brackets.

Go to: '''[[Fall 2012]]'''

Go to: '''[[Winter 2013]]'''

Go to: '''[[Spring 2013]]'''

Go to: '''[[Summer 2013]]'''

Go to: '''[[Fall 2013]]'''

Go to: '''[[Winter 2014]]'''

Go to: '''[[Spring 2014]]'''

Go to: '''[[Summer 2014]]'''

'''9/29'''

Recent arXiv papers:

[http://arxiv.org/abs/1409.7566 WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system - Neveu-VanMalle et al.]

[http://arxiv.org/abs/1409.0978 Short dissipation times of proto-planetary discs - an artifact of selection effects? - Pfalzner et al.]

'''10/13'''

Kevin Stevenson and Laura Kreidberg on recent full-phase-curve observations:

[http://arxiv.org/abs/1410.2241 Paper 1]. [http://arxiv.org/abs/1410.2255 Paper 2], [http://arxiv.org/abs/1410.2382 Paper 3]

'''10/17'''

Jonathan Fortney

Geosci colloquium: "Towards Understanding the Composition of Exoplanets"

'''10/20'''

Recent papers:

[http://arxiv.org/pdf/1410.4199.pdf Dan's ARAA review paper]

[http://arxiv.org/abs/1410.2604 Dawson & Chiang]

[http://onlinelibrary.wiley.com/doi/10.1002/2014EO250001/abstract Nick Cowan's planetary perspective on exoplanet science]

'''10/27'''

Dong Lai (Cornell)

[also giving the 10/29 Astro colloquium]

Star-Disk-Binary Interaction, Lidov-Kozai-Spin Chaos, and Formation of Misaligned Hot Jupiters

I will discuss the possibility of primordial misalignment in protoplanetary disks, chaotic spin evolution during Lidov-Kozai cycles, and high-eccetricty migration, all in connection with the observations and formation of hot Jupiter systems.

References:

(1) Lai 2014 MNRAS:
http://adsabs.harvard.edu/abs/2014MNRAS.440.3532L

(2) Storch, Anderson and Lai 2014 Science:
http://www.sciencemag.org/content/345/6202/1317.abstract

'''11/7''', Friday 1:30 pm, LASR conference room

Fabienne Bastien (Sagan Fellow, Penn State)

Enhancing Exoplanet Discovery and Characterization through Stellar Photometric “Flicker”

As a result of the high precision and cadence of surveys like MOST, CoRoT, and Kepler, we may now directly observe the very low-level light variations arising from stellar granulation in cool stars. In this talk, we discuss how this enables us to more accurately determine the physical properties of Sun-like stars, to understand the nature of surface convection and its connection to activity, and to better determine the properties of planets around cool stars. Indeed, such sensitive photometric "flicker" variations are now within reach for thousands of stars, and we estimate that upcoming missions like TESS will enable such measurements for ~100 000 stars. We present recent results that tie “flicker” to granulation and enable a simple measurement of stellar surface gravity with a precision of 0.1 dex. We use this, together and solely with two other simple ways of characterizing the stellar photometric variations in a high quality light curve, to construct an evolutionary diagram for Sun-like stars from the Main Sequence on towards the red giant branch. We discuss further work that correlates “flicker” with stellar density, allowing the application of astrodensity profiling techniques used in exoplanet characterization to many more stars. We also present results suggesting that the granulation of F stars must be magnetically suppressed in order to fit observations. Finally, we show that we may quantitatively predict a star's RV jitter using our evolutionary diagram, permitting the use of discovery light curves to help prioritize follow-up observations of transiting exoplanets.

'''11/10'''

Recent results:

[http://phys.org/news/2014-11-birth-planets-revealed-astonishing-alma.html HL Tau imaging from ALMA]

Jun Yang & Dorian Abbott on their latest paper: [http://arxiv.org/abs/1411.0540 Water Trapping on Tidally Locked Terrestrial Planets Requires Special Conditions].

'''11/17'''

Philae's landing on Comet 67P

[http://arxiv.org/abs/1411.3724 The MINERVA project for automated RV planet-finding]

[http://arxiv.org/abs/1411.1754 Prospects for transit observations with JWST]

'''11/24'''

Recent arXiv papers

'''12/1'''

Recent papers:

[http://arxiv.org/pdf/1411.7412.pdf Luger & Barnes - extreme water loss on planets around M dwarfs]

[http://arxiv.org/pdf/1411.7660.pdf de Mooij et al. - ground-based transit observations of 55 Cnc e]

[http://arxiv.org/pdf/1411.7761.pdf Chavez et al. - Kepler circumbinary planet stability]

[http://arxiv.org/pdf/1411.5066.pdf Batygin et al. - Chaotic disintegration of the inner solar system]

[http://arxiv.org/pdf/1411.7028.pdf Kipping et al. - exo-moons (or the lack thereof)]

[http://arxiv.org/pdf/1411.7404.pdf Deming et al. - Spitzer secondary eclipse observations & instrumental systematics]

(Date TBD

Nicolas Dauphas, Geochemical perspective on planet formation.)

Current schedule

2014-11-17T23:07:59Z

Mbedell:

Sign up [https://cosmo.uchicago.edu/mailman/listinfo/exoplanet here] for the email list, if you are local and want to hear about meeting announcements.

Meetings are usually in the upper geosci conference room (Hinds 451). They take place generally on Mondays at 3 pm.

Other exoplanet-themed talks and events at UChicago, beyond this reading group, are shown in double brackets.

Go to: '''[[Fall 2012]]'''

Go to: '''[[Winter 2013]]'''

Go to: '''[[Spring 2013]]'''

Go to: '''[[Summer 2013]]'''

Go to: '''[[Fall 2013]]'''

Go to: '''[[Winter 2014]]'''

Go to: '''[[Spring 2014]]'''

Go to: '''[[Summer 2014]]'''

'''9/29'''

Recent arXiv papers:

[http://arxiv.org/abs/1409.7566 WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system - Neveu-VanMalle et al.]

[http://arxiv.org/abs/1409.0978 Short dissipation times of proto-planetary discs - an artifact of selection effects? - Pfalzner et al.]

'''10/13'''

Kevin Stevenson and Laura Kreidberg on recent full-phase-curve observations:

[http://arxiv.org/abs/1410.2241 Paper 1]. [http://arxiv.org/abs/1410.2255 Paper 2], [http://arxiv.org/abs/1410.2382 Paper 3]

'''10/17'''

Jonathan Fortney

Geosci colloquium: "Towards Understanding the Composition of Exoplanets"

'''10/20'''

Recent papers:

[http://arxiv.org/pdf/1410.4199.pdf Dan's ARAA review paper]

[http://arxiv.org/abs/1410.2604 Dawson & Chiang]

[http://onlinelibrary.wiley.com/doi/10.1002/2014EO250001/abstract Nick Cowan's planetary perspective on exoplanet science]

'''10/27'''

Dong Lai (Cornell)

[also giving the 10/29 Astro colloquium]

Star-Disk-Binary Interaction, Lidov-Kozai-Spin Chaos, and Formation of Misaligned Hot Jupiters

I will discuss the possibility of primordial misalignment in protoplanetary disks, chaotic spin evolution during Lidov-Kozai cycles, and high-eccetricty migration, all in connection with the observations and formation of hot Jupiter systems.

References:

(1) Lai 2014 MNRAS:
http://adsabs.harvard.edu/abs/2014MNRAS.440.3532L

(2) Storch, Anderson and Lai 2014 Science:
http://www.sciencemag.org/content/345/6202/1317.abstract

'''11/7''', Friday 1:30 pm, LASR conference room

Fabienne Bastien (Sagan Fellow, Penn State)

Enhancing Exoplanet Discovery and Characterization through Stellar Photometric “Flicker”

As a result of the high precision and cadence of surveys like MOST, CoRoT, and Kepler, we may now directly observe the very low-level light variations arising from stellar granulation in cool stars. In this talk, we discuss how this enables us to more accurately determine the physical properties of Sun-like stars, to understand the nature of surface convection and its connection to activity, and to better determine the properties of planets around cool stars. Indeed, such sensitive photometric "flicker" variations are now within reach for thousands of stars, and we estimate that upcoming missions like TESS will enable such measurements for ~100 000 stars. We present recent results that tie “flicker” to granulation and enable a simple measurement of stellar surface gravity with a precision of 0.1 dex. We use this, together and solely with two other simple ways of characterizing the stellar photometric variations in a high quality light curve, to construct an evolutionary diagram for Sun-like stars from the Main Sequence on towards the red giant branch. We discuss further work that correlates “flicker” with stellar density, allowing the application of astrodensity profiling techniques used in exoplanet characterization to many more stars. We also present results suggesting that the granulation of F stars must be magnetically suppressed in order to fit observations. Finally, we show that we may quantitatively predict a star's RV jitter using our evolutionary diagram, permitting the use of discovery light curves to help prioritize follow-up observations of transiting exoplanets.

'''11/10'''

Recent results:

[http://phys.org/news/2014-11-birth-planets-revealed-astonishing-alma.html HL Tau imaging from ALMA]

Jun Yang & Dorian Abbott on their latest paper: [http://arxiv.org/abs/1411.0540 Water Trapping on Tidally Locked Terrestrial Planets Requires Special Conditions].

'''11/17'''

Philae's landing on Comet 67P

[http://arxiv.org/abs/1411.3724 The MINERVA project for automated RV planet-finding]

[http://arxiv.org/abs/1411.1754 Prospects for transit observations with JWST]

(Date TBD

Nicolas Dauphas, Geochemical perspective on planet formation.)

Current schedule

2014-11-17T17:50:04Z

Mbedell:

Sign up [https://cosmo.uchicago.edu/mailman/listinfo/exoplanet here] for the email list, if you are local and want to hear about meeting announcements.

Meetings are usually in the upper geosci conference room (Hinds 451). They take place generally on Mondays at 3 pm.

Other exoplanet-themed talks and events at UChicago, beyond this reading group, are shown in double brackets.

Go to: '''[[Fall 2012]]'''

Go to: '''[[Winter 2013]]'''

Go to: '''[[Spring 2013]]'''

Go to: '''[[Summer 2013]]'''

Go to: '''[[Fall 2013]]'''

Go to: '''[[Winter 2014]]'''

Go to: '''[[Spring 2014]]'''

Go to: '''[[Summer 2014]]'''

'''9/29'''

Recent arXiv papers:

[http://arxiv.org/abs/1409.7566 WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system - Neveu-VanMalle et al.]

[http://arxiv.org/abs/1409.0978 Short dissipation times of proto-planetary discs - an artifact of selection effects? - Pfalzner et al.]

'''10/13'''

Kevin Stevenson and Laura Kreidberg on recent full-phase-curve observations:

[http://arxiv.org/abs/1410.2241 Paper 1]. [http://arxiv.org/abs/1410.2255 Paper 2], [http://arxiv.org/abs/1410.2382 Paper 3]

'''10/17'''

Jonathan Fortney

Geosci colloquium: "Towards Understanding the Composition of Exoplanets"

'''10/20'''

Recent papers:

[http://arxiv.org/pdf/1410.4199.pdf Dan's ARAA review paper]

[http://arxiv.org/abs/1410.2604 Dawson & Chiang]

[http://onlinelibrary.wiley.com/doi/10.1002/2014EO250001/abstract Nick Cowan's planetary perspective on exoplanet science]

'''10/27'''

Dong Lai (Cornell)

[also giving the 10/29 Astro colloquium]

Star-Disk-Binary Interaction, Lidov-Kozai-Spin Chaos, and Formation of Misaligned Hot Jupiters

I will discuss the possibility of primordial misalignment in protoplanetary disks, chaotic spin evolution during Lidov-Kozai cycles, and high-eccetricty migration, all in connection with the observations and formation of hot Jupiter systems.

References:

(1) Lai 2014 MNRAS:
http://adsabs.harvard.edu/abs/2014MNRAS.440.3532L

(2) Storch, Anderson and Lai 2014 Science:
http://www.sciencemag.org/content/345/6202/1317.abstract

'''11/7''', Friday 1:30 pm, LASR conference room

Fabienne Bastien (Sagan Fellow, Penn State)

Enhancing Exoplanet Discovery and Characterization through Stellar Photometric “Flicker”

As a result of the high precision and cadence of surveys like MOST, CoRoT, and Kepler, we may now directly observe the very low-level light variations arising from stellar granulation in cool stars. In this talk, we discuss how this enables us to more accurately determine the physical properties of Sun-like stars, to understand the nature of surface convection and its connection to activity, and to better determine the properties of planets around cool stars. Indeed, such sensitive photometric "flicker" variations are now within reach for thousands of stars, and we estimate that upcoming missions like TESS will enable such measurements for ~100 000 stars. We present recent results that tie “flicker” to granulation and enable a simple measurement of stellar surface gravity with a precision of 0.1 dex. We use this, together and solely with two other simple ways of characterizing the stellar photometric variations in a high quality light curve, to construct an evolutionary diagram for Sun-like stars from the Main Sequence on towards the red giant branch. We discuss further work that correlates “flicker” with stellar density, allowing the application of astrodensity profiling techniques used in exoplanet characterization to many more stars. We also present results suggesting that the granulation of F stars must be magnetically suppressed in order to fit observations. Finally, we show that we may quantitatively predict a star's RV jitter using our evolutionary diagram, permitting the use of discovery light curves to help prioritize follow-up observations of transiting exoplanets.

'''11/10'''

Recent results:

[http://phys.org/news/2014-11-birth-planets-revealed-astonishing-alma.html HL Tau imaging from ALMA]

Jun Yang & Dorian Abbott on their latest paper: [http://arxiv.org/abs/1411.0540 Water Trapping on Tidally Locked Terrestrial Planets Requires Special Conditions].

(Date TBD

Nicolas Dauphas, Geochemical perspective on planet formation.)

Current schedule

2014-11-10T22:53:28Z

Mbedell:

Sign up [https://cosmo.uchicago.edu/mailman/listinfo/exoplanet here] for the email list, if you are local and want to hear about meeting announcements.

Meetings are usually in the upper geosci conference room (Hinds 451). They take place generally every other Monday, at 3 pm.

Other exoplanet-themed talks and events at UChicago, beyond this reading group, are shown in double brackets.

Go to: '''[[Fall 2012]]'''

Go to: '''[[Winter 2013]]'''

Go to: '''[[Spring 2013]]'''

Go to: '''[[Summer 2013]]'''

Go to: '''[[Fall 2013]]'''

Go to: '''[[Winter 2014]]'''

Go to: '''[[Spring 2014]]'''

Go to: '''[[Summer 2014]]'''

'''9/29'''

Recent arXiv papers:

[http://arxiv.org/abs/1409.7566 WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system - Neveu-VanMalle et al.]

[http://arxiv.org/abs/1409.0978 Short dissipation times of proto-planetary discs - an artifact of selection effects? - Pfalzner et al.]

'''10/13'''

Kevin Stevenson and Laura Kreidberg on recent full-phase-curve observations:

[http://arxiv.org/abs/1410.2241 Paper 1]. [http://arxiv.org/abs/1410.2255 Paper 2], [http://arxiv.org/abs/1410.2382 Paper 3]

'''10/17'''

Jonathan Fortney

Geosci colloquium: "Towards Understanding the Composition of Exoplanets"

'''10/20'''

Recent papers:

[http://arxiv.org/pdf/1410.4199.pdf Dan's ARAA review paper]

[http://arxiv.org/abs/1410.2604 Dawson & Chiang]

[http://onlinelibrary.wiley.com/doi/10.1002/2014EO250001/abstract Nick Cowan's planetary perspective on exoplanet science]

'''10/27'''

Dong Lai (Cornell)

[also giving the 10/29 Astro colloquium]

Star-Disk-Binary Interaction, Lidov-Kozai-Spin Chaos, and Formation of Misaligned Hot Jupiters

I will discuss the possibility of primordial misalignment in protoplanetary disks, chaotic spin evolution during Lidov-Kozai cycles, and high-eccetricty migration, all in connection with the observations and formation of hot Jupiter systems.

References:

(1) Lai 2014 MNRAS:
http://adsabs.harvard.edu/abs/2014MNRAS.440.3532L

(2) Storch, Anderson and Lai 2014 Science:
http://www.sciencemag.org/content/345/6202/1317.abstract

'''11/7''', Friday 1:30 pm, LASR conference room

Fabienne Bastien (Sagan Fellow, Penn State)

Enhancing Exoplanet Discovery and Characterization through Stellar Photometric “Flicker”

As a result of the high precision and cadence of surveys like MOST, CoRoT, and Kepler, we may now directly observe the very low-level light variations arising from stellar granulation in cool stars. In this talk, we discuss how this enables us to more accurately determine the physical properties of Sun-like stars, to understand the nature of surface convection and its connection to activity, and to better determine the properties of planets around cool stars. Indeed, such sensitive photometric "flicker" variations are now within reach for thousands of stars, and we estimate that upcoming missions like TESS will enable such measurements for ~100 000 stars. We present recent results that tie “flicker” to granulation and enable a simple measurement of stellar surface gravity with a precision of 0.1 dex. We use this, together and solely with two other simple ways of characterizing the stellar photometric variations in a high quality light curve, to construct an evolutionary diagram for Sun-like stars from the Main Sequence on towards the red giant branch. We discuss further work that correlates “flicker” with stellar density, allowing the application of astrodensity profiling techniques used in exoplanet characterization to many more stars. We also present results suggesting that the granulation of F stars must be magnetically suppressed in order to fit observations. Finally, we show that we may quantitatively predict a star's RV jitter using our evolutionary diagram, permitting the use of discovery light curves to help prioritize follow-up observations of transiting exoplanets.

'''11/10'''

Recent results:

[http://phys.org/news/2014-11-birth-planets-revealed-astonishing-alma.html HL Tau imaging from ALMA]

Jun Yang & Dorian Abbott on their latest paper: [http://arxiv.org/abs/1411.0540 Water Trapping on Tidally Locked Terrestrial Planets Requires Special Conditions].

(Date TBD

Nicolas Dauphas, Geochemical perspective on planet formation.)

Current schedule

2014-11-10T22:53:07Z

Mbedell:

Sign up [https://cosmo.uchicago.edu/mailman/listinfo/exoplanet here] for the email list, if you are local and want to hear about meeting announcements.

Meetings are usually in the upper geosci conference room (Hinds 451). They take place generally every other Monday, at 3 pm.

Other exoplanet-themed talks and events at UChicago, beyond this reading group, are shown in double brackets.

Go to: '''[[Fall 2012]]'''

Go to: '''[[Winter 2013]]'''

Go to: '''[[Spring 2013]]'''

Go to: '''[[Summer 2013]]'''

Go to: '''[[Fall 2013]]'''

Go to: '''[[Winter 2014]]'''

Go to: '''[[Spring 2014]]'''

Go to: '''[[Summer 2014]]'''

'''9/29'''

Recent arXiv papers:

[http://arxiv.org/abs/1409.7566 WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system - Neveu-VanMalle et al.]

[http://arxiv.org/abs/1409.0978 Short dissipation times of proto-planetary discs - an artifact of selection effects? - Pfalzner et al.]

'''10/13'''

Kevin Stevenson and Laura Kreidberg on recent full-phase-curve observations:

[http://arxiv.org/abs/1410.2241 Paper 1]. [http://arxiv.org/abs/1410.2255 Paper 2], [http://arxiv.org/abs/1410.2382 Paper 3]

'''10/17'''

Jonathan Fortney

Geosci colloquium: "Towards Understanding the Composition of Exoplanets"

'''10/20'''

Recent papers:

[http://arxiv.org/pdf/1410.4199.pdf Dan's ARAA review paper]

[http://arxiv.org/abs/1410.2604 Dawson & Chiang]

[http://onlinelibrary.wiley.com/doi/10.1002/2014EO250001/abstract Nick Cowan's planetary perspective on exoplanet science]

'''10/27'''

Dong Lai (Cornell)

[also giving the 10/29 Astro colloquium]

Star-Disk-Binary Interaction, Lidov-Kozai-Spin Chaos, and Formation of Misaligned Hot Jupiters

I will discuss the possibility of primordial misalignment in protoplanetary disks, chaotic spin evolution during Lidov-Kozai cycles, and high-eccetricty migration, all in connection with the observations and formation of hot Jupiter systems.

References:

(1) Lai 2014 MNRAS:
http://adsabs.harvard.edu/abs/2014MNRAS.440.3532L

(2) Storch, Anderson and Lai 2014 Science:
http://www.sciencemag.org/content/345/6202/1317.abstract

'''11/7''', Friday 1:30 pm, LASR conference room

Fabienne Bastien (Sagan Fellow, Penn State)

Enhancing Exoplanet Discovery and Characterization through Stellar Photometric “Flicker”

As a result of the high precision and cadence of surveys like MOST, CoRoT, and Kepler, we may now directly observe the very low-level light variations arising from stellar granulation in cool stars. In this talk, we discuss how this enables us to more accurately determine the physical properties of Sun-like stars, to understand the nature of surface convection and its connection to activity, and to better determine the properties of planets around cool stars. Indeed, such sensitive photometric "flicker" variations are now within reach for thousands of stars, and we estimate that upcoming missions like TESS will enable such measurements for ~100 000 stars. We present recent results that tie “flicker” to granulation and enable a simple measurement of stellar surface gravity with a precision of 0.1 dex. We use this, together and solely with two other simple ways of characterizing the stellar photometric variations in a high quality light curve, to construct an evolutionary diagram for Sun-like stars from the Main Sequence on towards the red giant branch. We discuss further work that correlates “flicker” with stellar density, allowing the application of astrodensity profiling techniques used in exoplanet characterization to many more stars. We also present results suggesting that the granulation of F stars must be magnetically suppressed in order to fit observations. Finally, we show that we may quantitatively predict a star's RV jitter using our evolutionary diagram, permitting the use of discovery light curves to help prioritize follow-up observations of transiting exoplanets.

'''11/10'''

Recent results:

[http://phys.org/news/2014-11-birth-planets-revealed-astonishing-alma.html HL Tau imaging from ALMA]

Jun Yang & Dorian Abbott on their latest paper: [http://arxiv.org/abs/1411.0540 Water Trapping on Tidally Locked Terrestrial Planets Requires Special Conditions].

(Date TBD

Nicolas Dauphas, Geochemical perspective on planet formation.)

Main Page

2014-11-10T22:50:04Z

Mbedell: /* Exoplanet Reading Group */

Current schedule

2014-10-21T20:15:55Z

Mbedell:

Sign up [https://cosmo.uchicago.edu/mailman/listinfo/exoplanet here] for the email list, if you are local and want to hear about meeting announcements.

Meetings are usually in the upper geosci conference room (Hinds 451). They take place generally every other Monday, at 3 pm.

Other exoplanet-themed talks and events at UChicago, beyond this reading group, are shown in double brackets.

Go to: '''[[Fall 2012]]'''

Go to: '''[[Winter 2013]]'''

Go to: '''[[Spring 2013]]'''

Go to: '''[[Summer 2013]]'''

Go to: '''[[Fall 2013]]'''

Go to: '''[[Winter 2014]]'''

Go to: '''[[Spring 2014]]'''

Go to: '''[[Summer 2014]]'''

'''9/29'''

Recent arXiv papers:

[http://arxiv.org/abs/1409.7566 WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system - Neveu-VanMalle et al.]

[http://arxiv.org/abs/1409.0978 Short dissipation times of proto-planetary discs - an artifact of selection effects? - Pfalzner et al.]

'''10/13'''

Kevin Stevenson and Laura Kreidberg on recent full-phase-curve observations:

[http://arxiv.org/abs/1410.2241 Paper 1]. [http://arxiv.org/abs/1410.2255 Paper 2], [http://arxiv.org/abs/1410.2382 Paper 3]

'''10/17'''

Jonathan Fortney

Geosci colloquium: "Towards Understanding the Composition of Exoplanets"

'''10/20'''

Recent papers:

[http://arxiv.org/pdf/1410.4199.pdf Dan's ARAA review paper]

[http://arxiv.org/abs/1410.2604 Dawson & Chiang]

[http://onlinelibrary.wiley.com/doi/10.1002/2014EO250001/abstract Nick Cowan's planetary perspective on exoplanet science]

'''10/27'''

Dong Lai (Cornell)

[also giving the 10/29 Astro colloquium]

Star-Disk-Binary Interaction, Lidov-Kozai-Spin Chaos, and Formation of Misaligned Hot Jupiters

I will discuss the possibility of primordial misalignment in protoplanetary disks, chaotic spin evolution during Lidov-Kozai cycles, and high-eccetricty migration, all in connection with the observations and formation of hot Jupiter systems.

References:

(1) Lai 2014 MNRAS:
http://adsabs.harvard.edu/abs/2014MNRAS.440.3532L

(2) Storch, Anderson and Lai 2014 Science:
http://www.sciencemag.org/content/345/6202/1317.abstract

'''11/7''', Friday 1:30 pm, LASR conference room

Fabienne Bastien (Sagan Fellow, Penn State)

Enhancing Exoplanet Discovery and Characterization through Stellar Photometric “Flicker”

As a result of the high precision and cadence of surveys like MOST, CoRoT, and Kepler, we may now directly observe the very low-level light variations arising from stellar granulation in cool stars. In this talk, we discuss how this enables us to more accurately determine the physical properties of Sun-like stars, to understand the nature of surface convection and its connection to activity, and to better determine the properties of planets around cool stars. Indeed, such sensitive photometric "flicker" variations are now within reach for thousands of stars, and we estimate that upcoming missions like TESS will enable such measurements for ~100 000 stars. We present recent results that tie “flicker” to granulation and enable a simple measurement of stellar surface gravity with a precision of 0.1 dex. We use this, together and solely with two other simple ways of characterizing the stellar photometric variations in a high quality light curve, to construct an evolutionary diagram for Sun-like stars from the Main Sequence on towards the red giant branch. We discuss further work that correlates “flicker” with stellar density, allowing the application of astrodensity profiling techniques used in exoplanet characterization to many more stars. We also present results suggesting that the granulation of F stars must be magnetically suppressed in order to fit observations. Finally, we show that we may quantitatively predict a star's RV jitter using our evolutionary diagram, permitting the use of discovery light curves to help prioritize follow-up observations of transiting exoplanets.

(Date TBD

Nicolas Dauphas, Geochemical perspective on planet formation.)

Current schedule

2014-10-21T20:14:39Z

Mbedell:

Sign up [https://cosmo.uchicago.edu/mailman/listinfo/exoplanet here] for the email list, if you are local and want to hear about meeting announcements.

Meetings are usually in the upper geosci conference room (Hinds 451). They take place generally every other Monday, at 3 pm.

Other exoplanet-themed talks and events at UChicago, beyond this reading group, are shown in double brackets.

Go to: '''[[Fall 2012]]'''

Go to: '''[[Winter 2013]]'''

Go to: '''[[Spring 2013]]'''

Go to: '''[[Summer 2013]]'''

Go to: '''[[Fall 2013]]'''

Go to: '''[[Winter 2014]]'''

Go to: '''[[Spring 2014]]'''

Go to: '''[[Summer 2014]]'''

9/29

Recent arXiV papers:

[http://arxiv.org/abs/1409.7566 WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system - Neveu-VanMalle et al.]

[http://arxiv.org/abs/1409.0978 Short dissipation times of proto-planetary discs - an artifact of selection effects? - Pfalzner et al.]

10/13

Kevin Stevenson and Laura Kreidberg on recent full-phase-curve observations:

[http://arxiv.org/abs/1410.2241 Paper 1]. [http://arxiv.org/abs/1410.2255 Paper 2], [http://arxiv.org/abs/1410.2382 Paper 3]

10/17

Jonathan Fortney

Geosci colloquium: "Towards Understanding the Composition of Exoplanets"

10/20

Recent papers:

[http://arxiv.org/pdf/1410.4199.pdf Dan's ARAA review paper]

[http://arxiv.org/abs/1410.2604 Dawson & Chiang]

[http://onlinelibrary.wiley.com/doi/10.1002/2014EO250001/abstract Nick Cowan's planetary perspective on exoplanet science]

10/27

Dong Lai (Cornell)

[also giving the 10/29 Astro colloquium]

Star-Disk-Binary Interaction, Lidov-Kozai-Spin Chaos, and Formation of Misaligned Hot Jupiters

I will discuss the possibility of primordial misalignment in protoplanetary disks, chaotic spin evolution during Lidov-Kozai cycles, and high-eccetricty migration, all in connection with the observations and formation of hot Jupiter systems.

References:

(1) Lai 2014 MNRAS:
http://adsabs.harvard.edu/abs/2014MNRAS.440.3532L

(2) Storch, Anderson and Lai 2014 Science:
http://www.sciencemag.org/content/345/6202/1317.abstract

11/7, Friday 1:30 pm, LASR conference room

Fabienne Bastien (Sagan Fellow, Penn State)

Enhancing Exoplanet Discovery and Characterization through Stellar Photometric “Flicker”

As a result of the high precision and cadence of surveys like MOST, CoRoT, and Kepler, we may now directly observe the very low-level light variations arising from stellar granulation in cool stars. In this talk, we discuss how this enables us to more accurately determine the physical properties of Sun-like stars, to understand the nature of surface convection and its connection to activity, and to better determine the properties of planets around cool stars. Indeed, such sensitive photometric "flicker" variations are now within reach for thousands of stars, and we estimate that upcoming missions like TESS will enable such measurements for ~100 000 stars. We present recent results that tie “flicker” to granulation and enable a simple measurement of stellar surface gravity with a precision of 0.1 dex. We use this, together and solely with two other simple ways of characterizing the stellar photometric variations in a high quality light curve, to construct an evolutionary diagram for Sun-like stars from the Main Sequence on towards the red giant branch. We discuss further work that correlates “flicker” with stellar density, allowing the application of astrodensity profiling techniques used in exoplanet characterization to many more stars. We also present results suggesting that the granulation of F stars must be magnetically suppressed in order to fit observations. Finally, we show that we may quantitatively predict a star's RV jitter using our evolutionary diagram, permitting the use of discovery light curves to help prioritize follow-up observations of transiting exoplanets.

(Date TBD

Nicolas Dauphas, Geochemical perspective on planet formation.)

Current schedule

2014-10-21T20:13:27Z

Mbedell:

Sign up [https://cosmo.uchicago.edu/mailman/listinfo/exoplanet here] for the email list, if you are local and want to hear about meeting announcements.

Meetings are usually in the upper geosci conference room (Hinds 451). They take place generally every other Monday, at 3 pm.

Other exoplanet-themed talks and events at UChicago, beyond this reading group, are shown in double brackets.

Go to: '''[[Fall 2012]]'''

Go to: '''[[Winter 2013]]'''

Go to: '''[[Spring 2013]]'''

Go to: '''[[Summer 2013]]'''

Go to: '''[[Fall 2013]]'''

Go to: '''[[Winter 2014]]'''

Go to: '''[[Spring 2014]]'''

Go to: '''[[Summer 2014]]'''

9/29

Recent arXiV papers:

[http://arxiv.org/abs/1409.7566 WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system - Neveu-VanMalle et al.]

[http://arxiv.org/abs/1409.0978 Short dissipation times of proto-planetary discs - an artifact of selection effects? - Pfalzner et al.]

10/13

Kevin Stevenson and Laura Kreidberg on recent full-phase-curve observations:

[http://arxiv.org/abs/1410.2241 Paper 1]. [http://arxiv.org/abs/1410.2255 Paper 2], [http://arxiv.org/abs/1410.2382 Paper 3]

10/17

Jonathan Fortney

Geosci colloquium: "Towards Understanding the Composition of Exoplanets"

10/20

Recent papers:

[http://arxiv.org/pdf/1410.4199.pdf Dan's ARAA review paper]

[http://arxiv.org/abs/1410.2604 Dawson & Chiang]

[http://onlinelibrary.wiley.com/doi/10.1002/2014EO250001/abstract Nick Cowan's planetary perspective on exoplanet science]

10/27

Dong Lai (Cornell)

[also giving the 10/29 Astro colloquium]

Star-Disk-Binary Interaction, Lidov-Kozai-Spin Chaos, and Formation of Misaligned Hot Jupiters

I will discuss the possibility of primordial misalignment in protoplanetary disks, chaotic spin evolution during Lidov-Kozai cycles, and high-eccetricty migration, all in connection with the observations and formation of hot Jupiter systems.

References:
(1) Lai 2014 MNRAS:
http://adsabs.harvard.edu/abs/2014MNRAS.440.3532L
(2) Storch, Anderson and Lai 2014 Science:
http://www.sciencemag.org/content/345/6202/1317.abstract

11/7, Friday 1:30 pm, LASR conference room

Fabienne Bastien (Sagan Fellow, Penn State)

Enhancing Exoplanet Discovery and Characterization through Stellar Photometric “Flicker”

As a result of the high precision and cadence of surveys like MOST, CoRoT, and Kepler, we may now directly observe the very low-level light variations arising from stellar granulation in cool stars. In this talk, we discuss how this enables us to more accurately determine the physical properties of Sun-like stars, to understand the nature of surface convection and its connection to activity, and to better determine the properties of planets around cool stars. Indeed, such sensitive photometric "flicker" variations are now within reach for thousands of stars, and we estimate that upcoming missions like TESS will enable such measurements for ~100 000 stars. We present recent results that tie “flicker” to granulation and enable a simple measurement of stellar surface gravity with a precision of 0.1 dex. We use this, together and solely with two other simple ways of characterizing the stellar photometric variations in a high quality light curve, to construct an evolutionary diagram for Sun-like stars from the Main Sequence on towards the red giant branch. We discuss further work that correlates “flicker” with stellar density, allowing the application of astrodensity profiling techniques used in exoplanet characterization to many more stars. We also present results suggesting that the granulation of F stars must be magnetically suppressed in order to fit observations. Finally, we show that we may quantitatively predict a star's RV jitter using our evolutionary diagram, permitting the use of discovery light curves to help prioritize follow-up observations of transiting exoplanets.

(Date TBD

Nicolas Dauphas, Geochemical perspective on planet formation.)

Current schedule

2014-10-21T20:09:42Z

Mbedell:

Current schedule

2014-10-21T15:19:26Z

Mbedell: