Are B Star X-Ray Sources Wind-Coronal Hybrids?

Details Are B Star X-Ray Sources Wind-Coronal Hybrids? Are B Star X-Ray Sources Wind-Coronal Hybrids?

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop..177c&link_type=abstract

Chandra Proposal ID #01200878

Astronomy and Astrophysics

Astrophysics

Chandra Proposal Id #01200878

Scientific paper

We propose to use the high spectral resolution of both the LETG and HETG to address several outstanding questions regarding X-ray production in B stars, including: Are coronal and wind mechanisms operating together in some B stars? Does the chaotic wind of tau Sco produce significant non-thermal emission ? What is the ionization balance in the stellar winds and how are X-rays reprocessed in the ambient wind? These questions can be addressed directly thanks to the ability afforded by AXAF to apply spectral diagnostic techniques used in the laboratory to X-ray astrophysics. These diagnostics include (1) line profile analysis, (2) density-sensitive line ratios, (3) continuum analysis, (4) temperature-sensitive line ratios, and (5) inner-shell emission and absorption.

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