Flares on a Bp Star

Details Flares on a Bp Star Flares on a Bp Star

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009apj...702..759m&link_type=abstract

The Astrophysical Journal, Volume 702, Issue 1, pp. 759-766 (2009).

Astronomy and Astrophysics

Astronomy

2

Stars: Early Type, Stars: Flare, Stars: Magnetic Fields

Scientific paper

Two large X-ray flares have been reported from the direction of a magnetic B2p star (σ Ori E). Sanz-Forcada et al. have suggested that the flares did not occur on the B2p star but on a companion of late spectral type. A star which is a candidate for a late-type flare star near σ Ori E has recently been identified by Bouy et al. However, based on the properties of the flares, and based on a recent model of rotating magnetospheres, we argue that, rather than attributing the two flares to a late-type dwarf, it is a viable hypothesis that the flares were magnetic phenomena associated with the rotating magnetosphere of the B2p star itself.

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