TY - JOUR
T1 - A highly eccentric warm jupiter orbiting TIC 237913194
AU - Schlecker, Martin
AU - Kossakowski, Diana
AU - Brahm, Rafael
AU - Espinoza, Néstor
AU - Henning, Thomas
AU - Carone, Ludmila
AU - Molaverdikhani, Karan
AU - Trifonov, Trifon
AU - Mollière, Paul
AU - Hobson, Melissa J.
AU - Jordán, Andrés
AU - Rojas, Felipe I.
AU - Klahr, Hubert
AU - Sarkis, Paula
AU - Bakos, Gáspár
AU - Bhatti, Waqas
AU - Osip, David
AU - Suc, Vincent
AU - Ricker, George
AU - Vanderspek, Roland
AU - Latham, David W.
AU - Seager, Sara
AU - Winn, Joshua N.
AU - Jenkins, Jon M.
AU - Vezie, Michael
AU - Villaseñor, Jesus Noel
AU - Rose, Mark E.
AU - Rodriguez, David R.
AU - Rodriguez, Joseph E.
AU - Quinn, Samuel N.
AU - Shporer, Avi
N1 - Publisher Copyright:
© 2020. The American Astronomical Society.
PY - 2020/12
Y1 - 2020/12
N2 - The orbital parameters of warm Jupiters serve as a record of their formation history, providing constraints on formation scenarios for giant planets on close and intermediate orbits. Here, we report the discovery of TIC 237913194b, detected in full-frame images from Sectors 1 and 2 of the Transiting Exoplanet Survey Satellite (TESS), ground-based photometry (Chilean-Hungarian Automated Telescope, Las Cumbres Observatory Global Telescope), and Fiber-fed Extended Range Optical Spectrograph radial velocity time series. We constrain its mass to MP = - 1.942+0.091 0.091 MJ and its radius to RP = - 1.117+0.047 0.054 RJ , implying a bulk density similar to Neptune's. It orbits a G-type star (M*= - 1.026+0.055 0.057 M⊙, V = 12.1 mag) with a period of 15.17 days on one of the most eccentric orbits of all known warm giants (e ≈ 0.58). This extreme dynamical state points to a past interaction with an additional, undetected massive companion. A tidal evolution analysis showed a large tidal dissipation timescale, suggesting that the planet is not a progenitor for a hot Jupiter caught during its high-eccentricity migration. TIC 237913194b further represents an attractive opportunity to study the energy deposition and redistribution in the atmosphere of a warm Jupiter with high eccentricity.
AB - The orbital parameters of warm Jupiters serve as a record of their formation history, providing constraints on formation scenarios for giant planets on close and intermediate orbits. Here, we report the discovery of TIC 237913194b, detected in full-frame images from Sectors 1 and 2 of the Transiting Exoplanet Survey Satellite (TESS), ground-based photometry (Chilean-Hungarian Automated Telescope, Las Cumbres Observatory Global Telescope), and Fiber-fed Extended Range Optical Spectrograph radial velocity time series. We constrain its mass to MP = - 1.942+0.091 0.091 MJ and its radius to RP = - 1.117+0.047 0.054 RJ , implying a bulk density similar to Neptune's. It orbits a G-type star (M*= - 1.026+0.055 0.057 M⊙, V = 12.1 mag) with a period of 15.17 days on one of the most eccentric orbits of all known warm giants (e ≈ 0.58). This extreme dynamical state points to a past interaction with an additional, undetected massive companion. A tidal evolution analysis showed a large tidal dissipation timescale, suggesting that the planet is not a progenitor for a hot Jupiter caught during its high-eccentricity migration. TIC 237913194b further represents an attractive opportunity to study the energy deposition and redistribution in the atmosphere of a warm Jupiter with high eccentricity.
UR - http://www.scopus.com/inward/record.url?scp=85096775961&partnerID=8YFLogxK
U2 - 10.3847/1538-3881/abbe03
DO - 10.3847/1538-3881/abbe03
M3 - Article
AN - SCOPUS:85096775961
SN - 0004-6256
VL - 160
JO - Astronomical Journal
JF - Astronomical Journal
IS - 6
M1 - abbe03
ER -