Our tentative plan is to have coffees every weekday at 10:00 a.m. in the "Founders Lounge," (Rm. 1201) during which we will discuss topics of current interest, astro-phs, various papers, etc. Each day, one of us will volunteer or be asked to lead the discussion and choose the general topic. However, the flow of conversation should never be restricted to a narrow focus.

Jump to current week


If you would like to use the wiki to record/extend a discussion from morning coffee, please include a link to a discussion page under Comments. (See Further Discussions for more information about discussion pages.)

Please make use of the table below to sign up:
Date
Presenter
Paper or Topic
Author
Link
Comments?
Thu, Apr 1
Millikan
Über einen die Erzeugung und Verwandlung des Lichtes betreffenden heuristischen Gesichtspunkt
Einstein, A.
http://adsabs.harvard.edu/abs/1905AnP...322..132E
example page
Tue, Jan 26
Menou
Kepler Observations of Transiting Hot Compact Objects
Rowe, J. et al.
http://arxiv.org/abs/1001.3420
follow-up paper: http://arxiv.org/abs/1001.4539

Wed, Jan 27
Veras
Planet-Planet Scattering in Planetesimal Disks
Raymond, S. et al.
http://arxiv.org/abs/1001.3409

Thurs,
Jan 28
Menou
Nightside Pollution of Exoplanet Transit Depths
Kipping & Tinetti
http://arxiv.org/abs/0912.1133

Fri,
Jan 29
Burrows
High Precision Dynamical Masses of Very Low Mass Binaries
Konopacky et al.
http://arxiv.org/abs/1001.4800


Hansen
Rocky Planetesimals as the Origin of Metals in DZ Stars
Farihi et al.
http://arxiv.org/abs/1001.5025

Mon,
Feb 1
Rauscher
Transmission Spectra of Three-Dimensional Hot Jupiter Model Atmospheres
Fortney et al.
http://arxiv.org/abs/0912.2350

Tues,
Feb 2
Fabrycky
The determination of planetary structure in tidally relaxed inclined systems
Mardling, R.
1001.4079
see also a letter on the coplanar calculation


Menou
Gas Absorption in the KH 15D System: Further Evidence for Dust Settling in the Circumbinary Disk
Lawler et al.
http://arxiv.org/abs/1002.0302


Menou
Type I Planet Migration in Nearly Laminar Disks -- Long Term Behavior
Yu et al.
http://arxiv.org/abs/1002.0307

Wed,
Feb 3
Moorhead
A torque formula for non-isothermal type I planetary migration - I. Unsaturated horseshoe drag
Paardekooper et al.
http://adsabs.harvard.edu/abs/2010MNRAS.401.1950P

Thurs. Feb. 4
Burrows
IRTF spectra of HD 189733b (10 minutes)
Swain et al.
http://www.nature.com/nature/journal/v463/n7281/pdf/nature08775.pdf


Kretke
Planet Migration in MRI-active Disks
Kretke & Lin
http://www.ucolick.org/~kretke/kretkelin2010a.pdf

Fri, Feb 5
Lin
Hot Jupiter and super earths' interaction with the magnetosphere of
their host stars
Goldreich & Lynden-Bell 1
Piddington
Laine et a.
http://adsabs.harvard.edu/abs/1969ApJ...156...59G
http://adsabs.harvard.edu/abs/1977Moon...17..373P
http://adsabs.harvard.edu/abs/2008ApJ...685..521L


Fabrycky
An ingress and a complete transit of HD 80606 b
Hidas et al.
http://arxiv.org/abs/1002.1052

Mon, Feb 8
Veras
Exoplanet Database Comparison

http://exoplanets.org
http://exoplanet.eu
http://nsted.ipac.caltech.edu
there's an app for that:
http://itunes.apple.com/us/app/exoplanet/id327702034?mt=8#
(not an endorsement, just providing info)


Tidal effects on brown dwarfs: Application to the eclipsing binary 2MASSJ05352184-0546085 - The anomalous temperature reversal in the context of tidal heating
Heller et al.
http://arxiv.org/abs/1002.1246

Tues, Feb 9
Jayawardhana
Weather on brown dwarfs?
Artigau et al.
Clarke et al.

Radigan et al.
http://arxiv.org/abs/0906.3514
http://adsabs.harvard.edu/abs/2008MNRAS.386.2009C
N/A (in prep.)



Tau Boo b: Hunting for reflected starlight
Rodler et al.
http://arxiv.org/abs/1002.1638

Wed., Feb 10
Veras
Challenges of Detecting Unseen Companions with Transit Timing Variations
Veras et al.




H-band thermal emission from the 0.79-day period planet WASP-19b
Anderson et al.
http://arxiv.org/abs/1002.1947

Thurs, Feb 11
Fabrycky
On the dynamics of multiple systems of hot super-Earths and Neptunes: Tidal circularization, resonance and the HD 40307 system
Papaloizou & Terquem
http://arxiv.org/abs/1002.2125

Fri, Feb 12
Traub
Upper limits on zodi brightness at 10 microns, for about 25 stars, from the Keck Interferometer
work in prep


Mon, Feb 15





Tues, Feb 16
Pfalzner
Leaky clusters as main birth place of planetary systems
Pfalzner
http://adsabs.harvard.edu/abs/2009A%26A...498L..37P


Burrows
Probing the terminator region atmosphere of the Hot-Jupiter XO-1b with transmission spectroscopy
Tinetti et al.
http://arxiv.org/abs/1002.2434



Clouds in the atmospheres of extrasolar planets: I. Climatic effects of multi-layered clouds for Earth-like planets and implications for habitable zones
Kitzmann et al.
http://arxiv.org/abs/1002.2927

Wed, Feb 17
Hansen
ExoPAG




Agol
Lensing effects during transits



Thurs, Feb 18
Kokubo
Gas accretion onto a protoplanet and formation of a Gas Giant Planet
Machida et al.
http://arxiv.org/abs/1002.3002

Fri, Feb 19
Agol
Variability of the thermal emission of hot Jupiters
Agol
http://adsabs.harvard.edu/abs/2009IAUS..253..209A

Mon, Feb 22
Konacki
Census of circumbinary planets

HD 202206: http://arxiv.org/abs/0911.1963, PSR B1620-26: http://arxiv.org/abs/astro-ph/ 0307339, HW Vir: http://arxiv.org/abs/0811.3807, QS Vir: http://www3.interscience. wiley.com/cgi-bin/fulltext/ 122683015/PDFSTART, NN Ser: http://adsabs.harvard.edu/cgi- bin/nph-data_query?bibcode= 2009ApJ...706L..96Q&db_key= AST&link_type=ARTICLE, DP Leo: http://adsabs.harvard.edu/cgi- bin/nph-data_query?bibcode= 2010ApJ...708L..66Q&db_key= AST&link_type=ARTICLE


Burrows
Inflating Hot Jupiters With Ohmic Dissipation
Batygin & Stevenson
http://arxiv.org/abs/1002.3650

Tues, Feb 23
Hansen
The pulsar planets are real terrestrial planets, and people should try to model them!

http://www.iop.org/EJ/abstract/0004-637X/666/2/1232/
http://www.iop.org/EJ/abstract/0004-637X/691/1/382/
http://www.iop.org/EJ/abstract/0004-637X/703/1/1131/


Menou
Resistive double-diffusive instability in the dead-zones of protostellar disks
Latter et al.
http://arxiv.org/abs/1002.3750


Menou
Type III migration in a low viscosity disc
Lin & Papaloizou
http://arxiv.org/abs/1002.3742

Wed, Feb 24
Dong Lai
Chaotic star formation and the alignment of stellar rotation with disc and planetary orbital axes
+
Magnetically warped disks

Bate et al;
Pfeiffer & Lai
http://adsabs.harvard.edu/abs/2010MNRAS.401.1505B
http://adsabs.harvard.edu/abs/2004ApJ...604..766P

Thurs, Feb 25
Menou
GJ 1214b
Charbonneau et al.
http://arxiv.org/abs/0912.3229
http://arxiv.org/abs/0912.3243
http://arxiv.org/abs/1001.0976

Burrows
WASP-12b



Fri, Feb 26
Veras
The Birth Environment of the Solar System;
The Lost Siblings of the Sun
Adams;
Portegies & Zwart
http://arxiv.org/abs/1001.5444
http://adsabs.harvard.edu/abs/2009ApJ...696L..13P


Pfalzner
On the Likelihood of Supernova Enrichment of Protoplanetary Disks;
Injection of Supernova Dust in Nearby Protoplanetary Disks
Williams & Gaidos;
Ouellette et al.
http://adsabs.harvard.edu/abs/2007ApJ...663L..33W
http://adsabs.harvard.edu/abs/2010ApJ...711..597O

Mon, Mar 1
Wolszczan
Detection of a planetary companion around the giant star γ1 Leonis
Han et al.
http://adsabs.harvard.edu/abs/2010A%26A...509A..24H

Tues, Mar 2
Quirrenbach
Solar Composition and Planet Formation
Melendez et al.
Ramirez et al.
ApJ 704, L66-L70

A&A 508, L17-L20

Wed, Mar 3
Menou
Pervasive Orbital Eccentricities Dictate the Habitability of Extrasolar Earths
Kita et al.
http://arxiv.org/abs/1003.0633


Menou
Minimum Radii of Super-Earths: Constraints from Giant Impacts
Marcus et al.
http://arxiv.org/abs/1003.0451

Thurs, Mar 4
Sotin
Cassini/VIMS looking at exoplanets


Description on how to implement such an observation on a planetary mission
Fri, Mar 5
Stapelfeldt
A Super-Earth and Two Neptunes Orbiting the Nearby Sun-like Star 61 Virginis
Vogt et al.
http://adsabs.harvard.edu/abs/2010ApJ...708.1366


Mordasini
Orbital Migration of low mass planets in evolutionary radiative models: avoiding catastrophic infall
Lyra et al.
http://arxiv.org/abs/1003.0925
Planetary migration
Mon, Mar 8
Quirrenbach
"Applied Mechanics" video

http://www.youtube.com/watch?v=qybUFnY7Y8w

Tues, Mar 9
Tian
Photon-Limited
Mass Loss Rate of WASP-12B


quick analysis on how large an escape flux can the EUV photons from the star support.
Wed, Mar 10
Helling
Dust formation, turbulence and large scale atmosphere simulations

e.g.
The role of convection, overshoot, and gravity waves for the transport of dust in M dwarf and brown dwarf atmospheres
ideas on turbulent dust formation and scale regimes in substellar atmospheres

Youdin
Accretion of Debris by Protoplanets in a Gas Disk
Youdin & Thompson
Spherical (actually cylindrical) wakes:
More interesting geometry
How gas drag affects standard collisional accretion of planets.
Thurs, Mar 11
Valencia
Detecting Terrestrial Planets after Collisions




Wu & Lithwick
Secular Stability and Formation of Hot Jupiters



Fri, Mar 12
Thommes
Eccentricity pumping of a planet on an inclined orbit by a disc
Terquem & Ajmia
http://adsabs.harvard.edu/abs/2010MNRAS.tmp..287T

Mon, Mar 15
Helling
How dead is the dead zone??
Woitke, Kamp & Thi
Radiation thermo-chemical models of protoplanetary disks. I. Hydrostatic disk structure and inner rim
Just a short follow up on the discussion on Friday.
Tues, Mar 16
Shporer
A new CoRoT planet discovery
Deeg et al.



Helling
Metals in the exosphere of WASP-12b
Fossati et al., submitted


Wed, Mar 17
Desert
Probing the atmosphere of HD189733b using Spitzer transit photometry
Desert et al.(2009)
Desert et al., submitted
http://adsabs.harvard.edu/abs/2009ApJ...699..478D


Agol
Weather update on HD 189733b
Agol et al., submitted


Thurs, Mar 18
Barman
t-dependent radiative transfer and ecc. planets
Iro & Deming (ApJ, 2010)
http://adsabs.harvard.edu/abs/2010ApJ...712..218I

Fri, Mar 19
Cowan
Alien Maps of an Ocean-Bearing World
Cowan et al. (2009)
http://adsabs.harvard.edu/abs/2009ApJ...700..915C

Mon, Mar 22

Evidence against the young hot-Jupiter around BD +20 1790;
A Spitzer Survey of Protoplanetary Disk Dust in the Young Serpens Cloud: How do Dust Characteristics Evolve with Time?;
Magnetic Drag on Hot Jupiter Atmospheric Winds
Figueira et al.;
Oliveira et al.;
Perna et al.
http://arxiv.org/abs/1003.3678;
http://arxiv.org/abs/1003.3791;
http://arxiv.org/abs/1003.3838

Tues, Mar 23

Radiative Transfer Models of a Possible Planet in the AB Aurigae Disk;
CoRoT-7 b: Super-Earth or Super-Io?
Jang-Condell & Kuchner;
Barnes et al.
http://arxiv.org/abs/1003.3900;
http://arxiv.org/abs/0912.1337

Wed, Mar 24
Fortney
Transmission spectra, work in progress: A few comparisons of simple models

http://adsabs.harvard.edu/abs/2010ApJ...709.1396F
http://adsabs.harvard.edu/abs/2008A%26A...481L..83L

Thurs, Mar 25
Winn
Review of Pont et al. 2008; update on the multiplanet system HAT-P-13

http://adsabs.harvard.edu/abs/2008MNRAS.385..109P
http://arxiv.org/abs/1003.4512


Barman
The highest resolution near-IR spectrum of the imaged planetary mass companion 2M1207 b
Patience et al.
http://arxiv.org/abs/1003.4507

Fri, Mar 26
Youdin
Streaming Instability




Thommes
Formation of Terrestrial Planets from Protoplanets under a Realistic Accretion Condition
Kokubo & Genda
http://xxx.lanl.gov/abs/1003.4384

Mar 29 - Apr 2

Conference, no morning coffee



Mon, Apr 5

Discovery of a very cool brown dwarf amongst the ten nearest stars to the Solar System
Lucas et al.
http://arxiv.org/abs/1004.0317

Tues, Apr 6
Jeremy Leconte
Is tidal heating sufficient to explain bloated exoplanets
leconte et al.
http://perso.ens-lyon.fr/jeremy.leconte/PagePerso/Site/Publications_files/tides10_v8_preprint.pdf

Wed, Apr 7

A Prograde, Low-Inclination Orbit for the Very Hot Jupiter WASP-3b;
The thermal emission of the exoplanets WASP-1b and WASP-2b;
Observation of the full 12-hour-long transit of the exoplanet HD80606b. Warm-Spitzer photometry and SOPHIE spectroscopy
Tripathi et al.,
Wheatley et al.,
Hebrard et al.
http://arxiv.org/abs/1004.0692
http://arxiv.org/abs/1004.0836
http://arxiv.org/abs/1004.0790

Thurs, Apr 8
Dave Spiegel
Habitability: Eccentricity and Milankovitch Cycles
Spiegel et al., Dressing et al.
http://arxiv.org/abs/1002.4877
http://arxiv.org/abs/1002.4875

Fri, Apr 9
Gaudi
Frequency of solar-like systems and of ice and gas giant planets beyond the snow line from microlensing
Gould et al.
http://arxiv.org/abs/1001.0572

Mon, Apr 12
Soko
Matsumura
Dynamical Evolution of Planetary Systems Emerging out of Gas Disks
Matsumura et al.


Tues, Apr 13
F. Masset
Horseshoe drag saturation
Baruteau & Lin
http://arxiv.org/abs/0912.0964

Wed, Apr 14
Lissauer
Kepler Mission: Early Results



Thurs, Apr 15
L. Mayer
Metallicity of the Massive Protoplanets around HR8799
if Formed by Gravitational Instability
Helled & Bodenheimer
http://arxiv.org/abs/0911.5003v1
The paper will serve as starting
point for a general discussion
on core formation and envelope
enrichment in clumps formed
by disk instability, including
on-going work on the subject.
Fri, Apr 16
F. Masset
Horseshoe drag saturation and turbulence
Baruteau & Lin
http://arxiv.org/abs/0912.0964
Follow up of Tue, Apr 13 coffee discussion
Mon, Apr 19
L. Kaltenegger
Characterizing habitable planets (& Pandora :) ) with JWST
L. Kaltenegger,
W. Traub
http://adsabs.harvard.edu/abs/2010ApJ...712L.125K
http://adsabs.harvard.edu/abs/2009ApJ...698..519K
If we detect Earths and Earth-like moons & the questions is if & how we can characterize habitable planets in transit. This discussion starts with the case study for JWST, comments & input welcome :)
Tue, Apr 20
Nader Haghighipour
Planetesimal accretion in binary star systems
Haghighipour and Beauge

New results on the effect of gas drag and disk eccentricity on the accretion of planetesimals in a binary star system.
Wed. Apr 21
R. Street
Recent Rossiter-MacLaughlin results
Triaud et al.


Thu, Apr 22
R. Courtland
Discussion on exoplanet media coverage



Fri, Apr 23





Mon, Apr 26
Marc Kuchner
The Kuiper Belt, Zodiacal Dust, Debris Disks: It's All About Collisions



Tue, Apr 27
Soko
Matsumura
Shrinking Binary and Planetary Orbits by Kozai Cycles with Tidal Friction
Fabrycky &
Tremaine
http://adsabs.harvard.edu/abs/2007ApJ...669.1298F

Wed, Apr 28
Heidar Thrastarson
Effects of Initial Flow on Close-In Planet Atmospheric
Circulation
Thrastarson & Cho
http://arxiv.org/abs/1004.2871

Thu, Apr 29
Ivan Hubeny
New model atmospheres for coolest brown dwarfs
Hubeny & Burrows


Fri, Apr 30





Mon, May 3
Tim Brown
LCOGT History, Science
Philosophy, and Timetable



Tue, May 4
Aaron Boley
Recent work on disk instability, and a core accretion paper for good measure.
Cossins et al. (2010);
Meru & Bate (2010);
Boley et al. (2010);
Vorobyov & Basu (2010);
Rafikov (2010)
http://arxiv.org/abs/1004.5389
http://arxiv.org/abs/1004.3766
http://arxiv.org/abs/0909.4543
http://arxiv.org/abs/1003.4315
http://arxiv.org/abs/1004.5139

Wed, May 5
Fred Adams
Using Extrasolar Planetary Systems as a Test of General Relativity
F. Adams &
G. Laughlin 2006, ApJ and IJMPD
http://arxiv.org/abs/astro-ph/0606346
http://arxiv.org/abs/astro-ph/0606349
http://arxiv.org/abs/astro-ph/0611861

Thu, May 6
Hilke Schlichting
Planetesimal accretion & planetary spins
H. Schlichting & R. Sari, 2007 ApJ
http://iopscience.iop.org/0004-637X/658/1/593/pdf/70489.web.pdf
http://adsabs.harvard.edu/abs/2010MNRAS.404..475J
http://adsabs.harvard.edu/abs/1993Icar..103...67D

Fri, May 7
Joe Barranco
3D Simulations of Kelvin-Helmholtz Instability of Settled Dust Layers in Protoplanetary Disks
Barranco 2009; Chaing 2008
http://arxiv.org/abs/0711.4410
http://arxiv.org/abs/0711.4349

Mon.
May 10
Man Hoi Lee
Constraints on Giant Planet Migration: Obliquities and Stability
D. S. McNeil & M. H. Lee


Tues.
May 11
David Sing
Observing the optical and NIR Transmission Spectra of Hot Jupiters
Sing et al.
http://adsabs.harvard.edu/abs/2009A%26A...505..891S
http://adsabs.harvard.edu/abs/2008ApJ...686..667S

Wednes.
May 12
Phil Arras
Large radii of hot Jupiters, and thermal tides
Arras and Socrates
http://adsabs.harvard.edu/abs/2009arXiv0901.0735A
http://adsabs.harvard.edu/abs/2010ApJ...714....1A

Thurs.
May 13
Aaron Boley
Recent arXiv postings and some new work on differentiation of solids in fragments at birth
Various

Boley
See May 4th postings.

Fri.
May 14





Mon, May 17





Tue, May 18

KISS/KITP Mini-Workshop on Future Space Probes of Exoplanets



Wed, May 19

KISS/KITP Mini-Workshop on Future Space Probes of Exoplanets



Thu, May 20
Andreas
Quirrenbach
Low-Mass Companions of Giant Stars



Fri, May 21
Ian Crossfield
A New Light Curve for the Giant Planet Ups And b



Mon, May 24
Ewa Szuszkiewicz
Super-Earths migrating in the presence of Gas Giants
Podlewska and Szuszkiewicz (2008, 2009)
http://adsabs.harvard.edu/abs/2008MNRAS.386.1347P
http://adsabs.harvard.edu/abs/2008MNRAS.386.1347P
and references within

Tue, May 25
Alex Wolszczan
Neutron star planets: where are they and how to find them



Wed, May 26





Thu, May 27





Fri, May 28






back to the top

List of Interest (Kristen):
0901.1214
0901.4739
0903.3371
0903.2452
0905.3742
0907.2512
0907.5019
0908.1977
0908.4010
0909.2644
0909.3922
0909.4977
0910.1004
0911.4198
0912.3243
0912.1337
0912.1907
0912.0964
0912.1133
0912.3229
1001.0572
1001.0976
1001.2890