TOI-561 b: A Low-density Ultra-short-period “Rocky” Planet around a Metal-poor Star

TOI-561 is a galactic thick-disk star hosting an ultra-short-period (0.45-day-orbit) planet with a radius of 1.37 R _⊕ , making it one of the most metal-poor ([Fe/H] = −0.41) and oldest (≈10 Gyr) sites where an Earth-sized planet has been found. We present new simultaneous radial velocity (RV) measu...

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Κύριοι συγγραφείς:	Casey L. Brinkman, Lauren M. Weiss, Fei Dai, Daniel Huber, Edwin S. Kite, Diana Valencia, Jacob L. Bean, Corey Beard, Aida Behmard, Sarah Blunt, Madison Brady, Benjamin Fulton, Steven Giacalone, Andrew W. Howard, Howard Isaacson, David Kasper, Jack Lubin, Mason MacDougall, Joseph M. Akana Murphy, Mykhaylo Plotnykov, Alex S. Polanski, Malena Rice, Andreas Seifahrt, Guðmundur Stefánsson, Julian Stürmer
Μορφή:	Artigo
Γλώσσα:	Inglês
Έκδοση:	IOP Publishing 2023-01-01
Σειρά:	The Astronomical Journal
Θέματα:	Exoplanets Extrasolar rocky planets Super Earths Exoplanet surface composition Exoplanet atmospheric composition
Διαθέσιμο Online:	https://doi.org/10.3847/1538-3881/acad83
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