期刊
ASTROPHYSICAL JOURNAL
卷 702, 期 1, 页码 759-766出版社
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/702/1/759
关键词
stars: early type; stars: flare; stars: magnetic fields
资金
- NASA Delaware Space Grant Consortium
Two large X-ray flares have been reported from the direction of a magnetic B2p star (sigma 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 sigma 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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