The Masses and Metallicities of Kepler's Planet-hosting M Dwarfs

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

While much attention is focused on Kepler's Sun-like target stars, there are many target stars that reside at the bottom of the main sequence. Thus, Kepler provides valuable information about planet formation around the Galaxy's most numerous denizens, the M dwarfs. We will present recent advances in understanding the fundamental physical properties of M dwarfs using both broadband photometry and optical spectroscopy. These techniques provide revised estimates of stellar masses and radii, thereby elucidating the radius distribution of planets orbiting low-mass stars. We will present the specific case studies LHS6343C and KOI-254.01, a transiting brown dwarf and hot Jupiter, respectively, orbiting two of Kepler's least massive and most proximate target stars.

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