Spectroscopically Determining Fundamental Properties Of M Dwarfs

Details Spectroscopically Determining Fundamental Properties Of M Dwarfs Spectroscopically Determining Fundamental Properties Of M Dwarfs

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21934505b&link_type=abstract

American Astronomical Society, AAS Meeting #219, #345.05

Statistics

Methodology

Scientific paper

We present a method of measuring masses and metallicities of M dwarfs using optical spectroscopy, without parallax and photometry. We co-add hundreds of Keck/HIRES spectra of nearby M dwarfs with known parallaxes, and use these extremely high signal-to-noise templates to derive a calibration between spectral indices and the physical properties of the stars. We have applied this method to low-mass Kepler Objects of Interest (KOIs) in order to better estimate stellar, and hence planet, properties. Our methodology is applicable to M dwarfs both in the solar neighborhood and throughout the Galaxy.

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