Flare variability in the close binary FL Vir

Details Flare variability in the close binary FL Vir Flare variability in the close binary FL Vir

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006mnras.368.1392p&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 368, Issue 3, pp. 1392-1394.

Astronomy and Astrophysics

Astronomy

1

Techniques: Photometric, Binaries: Close, Stars: Flare

Scientific paper

The results of U-filter flare monitoring of the binary flare star FL Vir = Wolf 424 is presented. 57 flares with energies between 2 × 1028 and 2 × 1031erg were recorded in 20 h of observation. The properties of flare occurrence and flare time-scales are analysed, and the flare activity level in 1980 April is determined to be Lf(U) = 8.0 × 1026ergs-1. This is larger than previously published results and may indicate a variation in the flare activity level on a time-scale of years. An analysis of existing data indicates that the flare activity level correlates with the relative orbital positions of the stars.

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