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Schlecker, Martin; Kossakowski, Diana; Brahm, Rafael; Espinoza, Néstor; Henning, Thomas; Carone, Ludmila; Molaverdikhani, Karan; Trifonov, Trifon; Mollière, Paul; Hobson, Melissa J.; Jordán, Andrés; Rojas, Felipe I.; Klahr, Hubert; Sarkis, Paula; Bakos, Gáspár Á.; Bhatti, Waqas; Osip, David; Suc, Vincent; Ricker, George; Vanderspek, Roland; Latham, David W.; Seager, Sara; Winn, Joshua N.; Jenkins, Jon M.; [...]

A Highly Eccentric Warm Jupiter Orbiting TIC 237913194

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  • Medientyp: E-Artikel
  • Titel: A Highly Eccentric Warm Jupiter Orbiting TIC 237913194
  • Beteiligte: Schlecker, Martin; Kossakowski, Diana; Brahm, Rafael; Espinoza, Néstor; Henning, Thomas; Carone, Ludmila; Molaverdikhani, Karan; Trifonov, Trifon; Mollière, Paul; Hobson, Melissa J.; Jordán, Andrés; Rojas, Felipe I.; Klahr, Hubert; Sarkis, Paula; Bakos, Gáspár Á.; Bhatti, Waqas; Osip, David; Suc, Vincent; Ricker, George; Vanderspek, Roland; Latham, David W.; Seager, Sara; Winn, Joshua N.; Jenkins, Jon M.; [...]
  • Erschienen: American Astronomical Society, 2020
  • Erschienen in: The Astronomical Journal, 160 (2020) 6, Seite 275
  • Sprache: Nicht zu entscheiden
  • DOI: 10.3847/1538-3881/abbe03
  • ISSN: 0004-6256; 1538-3881
  • Schlagwörter: Space and Planetary Science ; Astronomy and Astrophysics
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: Abstract 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 = and its radius to = , implying a bulk density similar to Neptune’s. It orbits a G-type star ( = , 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.
  • Zugangsstatus: Freier Zugang