Viability of Flare Heating of Stellar Coronae

Details Viability of Flare Heating of Stellar Coronae Viability of Flare Heating of Stellar Coronae

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sp51c09k&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SP51C-09

Physics

7509 Corona, 7519 Flares, 7537 Solar And Stellar Variability, 7554 X Rays, Gamma Rays, And Neutrinos, 7594 Instruments And Techniques

Scientific paper

Evidence is increasing that flare heating plays a dominant role in heating stellar coronae. In the Sun, flare frequency appears to be distributed with energy as a power law E-α with slope α < 2, and total flare energy appears insufficient to account for the coronal energy budget. However, recent analyses of stellar flare distributions in active coronae have generally found steeper slopes (α > 2) and flares appear capable of producing almost all the observed emission. We discuss EUVE observations of active stars such as FK Aqr, Wolf 630, and AD Leo and comment on the heating mechanisms of these coronae as compared to the processes sustaining the Solar Corona.

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