Mu Lep: a Case Study for the Origin of X-Rays from Chemically Peculiar Late B Stars

Details Mu Lep: a Case Study for the Origin of X-Rays from Chemically Peculiar Late B Stars Mu Lep: a Case Study for the Origin of X-Rays from Chemically Peculiar Late B Stars

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1151b&link_type=abstract

Chandra Proposal ID #04200970

Computer Science

Chandra Proposal Id #04200970

Scientific paper

Bright X-ray emission from isolated late B stars remains unexplained, as conventional theory predicts these stars neither to have coronae nor to eject sufficiently intense stellar winds. Among those that have been detected, several of the brightest are chemically peculiar stars. We propose to observe Mu Lep, the X-ray brightest HgMn star and to use a variety of spectroscopic techniques as well as the high angular resolution of Chandra to unveil the source of its X-ray emission, whether shocks in stellar winds, magnetically active regions, or an invisible companion. The X-ray-measured abundance patterns will be compared with those in the photosphere. X-ray emission from peculiar elements, which could provide a definite association of the X-rays with the B star, will be sought.

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