M Dwarf Flare Rate Analysis of SDSS Stripe 82

Details M Dwarf Flare Rate Analysis of SDSS Stripe 82 M Dwarf Flare Rate Analysis of SDSS Stripe 82

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21343402k&link_type=abstract

American Astronomical Society, AAS Meeting #213, #434.02; Bulletin of the American Astronomical Society, Vol. 41, p.303

Physics

Scientific paper

M dwarfs produce intense flares from the X-ray to the radio, including the optical by a physical mechanism which is still poorly understood. Since M dwarfs comprise about 70% of the stars in the Galaxy, their flares will be a significant source of optical transients in future time domain surveys, such as LSST, Pan-STARRS, and GAIA. Using a Flare Index to select flaring events from 40,000 low-cadence M dwarf light curves, we present the flaring rate as a function of intrinsic stellar properties, such as spectral type, level of magnetic activity, and distance from the Galactic plane. We also discuss our results in light of our understanding of flare physics and how our derived flaring rates and luminosities compare to the Lacy, Moffett, & Evans (1976) classical study of nearby active flare stars.

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