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Metallicity and Temperature Indicators in M dwarf K band Spectra: Testing New & Updated Calibrations With Observations of 133 Solar Neighborhood M dwarfs
Bárbara Rojas-Ayala, Kevin R. Covey, Philip S. Muirhead +1
We present K band spectra for 133 nearby (d < 33 parsecs) M dwarfs, including 18 M dwarfs with reliable metallicity estimates (as inferred from an FGK type companion), 11 M dwarf p…
Characterizing the Cool KOIs II. The M Dwarf KOI-254 and its Hot Jupiter
John Asher Johnson, J. Zachary Gazak, Kevin Apps +12
We report the confirmation and characterization of a transiting gas giant planet orbiting the M dwarf KOI-254 every 2.455239 days, which was originally discovered by the Kepler mis…
Characterizing the Cool Kepler Objects of Interest. New Effective Temperatures, Metallicities, Masses and Radii of Low-Mass Kepler Planet-Candidate Host Stars
Philip S. Muirhead, Katherine Hamren, Everett Schlawin +3
We report stellar parameters for late-K and M-type planet-candidate host stars announced by the Kepler Mission. We obtained medium-resolution, K-band spectra of 84 cool (Teff < 440…
Precise Stellar Radial Velocities of an M Dwarf with a Michelson Interferometer and a Medium-resolution Near-infrared Spectrograph
Philip S. Muirhead, Jerry Edelstein, David J. Erskine +13
Precise near-infrared radial velocimetry enables efficient detection and transit verification of low-mass extrasolar planets orbiting M dwarf hosts, which are faint for visible-wav…
The Sloan Digital Sky Survey Data Release 7 Spectroscopic M Dwarf Catalog I: Data
Andrew A. West, Dylan P. Morgan, John J. Bochanski +17
We present a spectroscopic catalog of 70,841 visually inspected M dwarfs from the seventh data release of the Sloan Digital Sky Survey (SDSS). For each spectrum, we provide measure…