Light Curves, Energetics and Rates of M Dwarf Flares

Details Light Curves, Energetics and Rates of M Dwarf Flares Light Curves, Energetics and Rates of M Dwarf Flares

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21832502h&link_type=abstract

American Astronomical Society, AAS Meeting #218, #325.02; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

The magnetic reconnection events that power stellar flares lead to a wide variety of light curve shapes, hinting at the complex underlying magnetic field topologies. Using our quantitative definition of a flare event, we find more than 100 flares during 600 hours of photometric monitoring of two dozen stars. The sample includes both active and inactive M dwarfs with a range of spectral type. We fit models for the light curve evolution to our photometric flare catalogue and present an analysis of the rise and decay times as well as flare colors. We additionally present the distribution of flare rates as a function of energy and equivalent duration. The flare frequency distribution is used to characterize the impact of M dwarf flares seen in time domain surveys, and is also necessary to model the effect of flares on the atmospheres of exoplanets orbiting an M dwarf host.

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