TESS Science Conference 2
Published July 24, 2021 | Version v1
Poster Open

The Eccentricity Distribution, Occurrence Rates, and Companions of TESS Warm Jupiters

Creators

  • 1. Penn State

Description

Warm Jupiters (WJs) – defined here as planets larger than 6 Earth radii with orbital periods 8–200 days – are a key missing piece of our planet formation and evolution theory. It is currently debated whether WJs form in situ or undergo disk or high eccentricity tidal migration. These different classes of origin channels lead to different expectations for WJs’ properties, such as the eccentricity distribution, occurrence rates, and companion properties. I will first introduce a catalog of WJ candidates from a systematic search in the Y1 TESS Full-Frame Images. In collaboration with the TFOP, we validate the catalog using ground-based facilities. I will then show the eccentricity distribution and occurrence rates of the catalog. The eccentricity distribution can be described by a two-population mixture model: a low-e population supporting the in situ or disk migration origins and a high-e population supporting the tidal migration origin. I will highlight the confirmation of TIC-464300749b, an 18-day WJ on a highly elliptical orbit (e~0.8). A few WJs are found with nearby companions. I will lastly discuss the implications of such systems by presenting planetary embryo simulations with WJs formed in situ versus via disk migration.

Notes

Full author list Chelsea Huang (University of Southern Queensland), Bekki Dawson (Penn State), George Zhou (University of Southern Queensland), Daniel Foreman-Mackey (Flatiron Institute), Karen Collins (CfA), Sam Quinn (CfA), Amaury Triaud (University of Birmingham), Songhu Wang (Indiana), Jack Lissauer (NASA Ames), Thomas Beatty (Arizona), Billy Quarles (Georgia Tech), Lizhou Sha (Wisconsin), Avi Shporer (MIT), Zhao Guo (Cambridge), Stephen Kane (UC Riverside), Lyu Abe (Observatoire de la Cote d'Azur), Khalid Barkaoui (Université de Liège), Zouhair Benkhaldoun (Cadi Ayyad University), Rafael Brahm (UAI), François Bouchy (Geneva), Theron Carmichael (Harvard), Kevin Collins (George Mason University), Dennis Conti (American Association of Variable Star Observers), Nicolas Crouzet (ESA), Georgina Dransfield (University of Birmingham), Phil Evans (El Sauce Observatory), Tianjun Gan (Tsinghua), Mourad Ghachoui (Cadi Ayyad University), Michaël Gillon (Université de Liège), Nolan Grieves (Geneva), Tristan Guillot (Observatoire de la Côte d'Azur), Coel Hellier (Keele University), Emmanuël Jehin (Université de Liège), Eric Jensen (Swarthmore), Andres Jordán (Universidad Adolfo Ibáñez), Jacob Kamler (John F. Kennedy High School), John Kielkopf (University of Louisville), Djamel Mékarnia (Observatoire de la Côte d'Azur), Louise Nielsen (Geneva), Francisco Pozuelos (Université de Liège), Don Radford (Brierfield Observatory), François-Xavier Schmider (Observatoire de la Côte d'Azur), Richard Schwarz (Patashnick Voorheesville Observatory), Chris Stockdale (Hazelwood Observatory), Thiam-Guan Tan (Perth), Mathilde Timmermans (Université de Liège), Gavin Wang (Stanford Online High School), George Ricker (MIT), Roland Vanderspek (MIT), David Latham (CfA), Sara Seager (MIT), Joshua Winn (Princeton), Jon Jenkins (NASA Ames), Ismael Mireles (University of New Mexico), Daniel Yahalomi (Columbia), Edward Morgan (MIT), Michael Vezie (MIT), Elisa Quintana (NASA Goddard), Mark Rose (NASA Ames), Jeffrey Smith (SETI Institute), Bernie Svhiao (MAST)

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