The Kepler-454 System: A Small, Not-rocky Inner Planet, a Jovian World, and a Distant Companion

The Kepler-454 System: A Small, Not-rocky Inner Planet, a Jovian World, and a Distant Companion

Kepler-454 (KOI-273) is a relatively bright (V = 11.69 mag), Sun-like starthat hosts a transiting planet candidate in a 10.6 d orbit. From spectroscopy, we estimate the stellar temperature to be 5687 +/- 50 K, its metallicity to be [m/H] = 0.32 +/- 0.08, and the projected rotational velocity to be v...

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Veröffentlicht in:arXiv.org 2015-11
Hauptverfasser: Gettel, Sara, Charbonneau, David, Dressing, Courtney D, Buchhave, Lars A, Dumusque, Xavier, Vanderburg, Andrew, Bonomo, Aldo S, Malavolta, Luca, Pepe, Francesco, Andrew Collier Cameron, Latham, David W, Udry, Stephane, Marcy, Geoffrey W, Isaacson, Howard, Howard, Andrew W, Davies, Guy R, Victor Silva Aguirre, Kjeldsen, Hans, Bedding, Timothy R, Lopez, Eric, Affer, Laura, Cosentino, Rosario, Figueira, Pedro, Fiorenzano, Aldo F M, Harutyunyan, Avet, John Asher Johnson, Lopez-Morales, Mercedes, Lovis, Christophe, Mayor, Michel, Micela, Giusi, Molinari, Emilio, Motalebi, Fatemeh, Phillips, David F, Piotto, Giampaolo, Queloz, Didier, Rice, Ken, Sasselov, Dimitar, Segransan, Damien, Sozzetti, Alessandro, Watson, Chris, Basu, Sarbani, Campante, Tiago L, Christensen-Dalsgaard, Jorgen, Kawaler, Steven D, Metcalfe, Travis S, Handberg, Rasmus, Lund, Mikkel N, Lundkvist, Mia S, Huber, Daniel, Chaplin, William J
Format: Artikel
Sprache:eng
Schlagworte:
Earth
Extrasolar planets
Metallicity
Physics - Earth and Planetary Astrophysics
Physics - Solar and Stellar Astrophysics
Planetary composition
Populations
Radial velocity
Rotation
Spectrographs
Stellar temperature
Transit
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Zusammenfassung:Kepler-454 (KOI-273) is a relatively bright (V = 11.69 mag), Sun-like starthat hosts a transiting planet candidate in a 10.6 d orbit. From spectroscopy, we estimate the stellar temperature to be 5687 +/- 50 K, its metallicity to be [m/H] = 0.32 +/- 0.08, and the projected rotational velocity to be v sin i 10 years and mass >12.1M_J . The twelve exoplanets with radii
ISSN:2331-8422
DOI:10.48550/arxiv.1511.09097