Stellar Wind Ionization in High-Mass X-ray Binary Systems

Details Stellar Wind Ionization in High-Mass X-ray Binary Systems Stellar Wind Ionization in High-Mass X-ray Binary Systems

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21943304i&link_type=abstract

American Astronomical Society, AAS Meeting #219, #433.04

Astronomy and Astrophysics

Astronomy

Scientific paper

Archival far-ultraviolet spectra of three high-mass X-ray binary stars observed with the Far Ultraviolet Spectroscopic Explorer (FUSE) were analyzed to study the effects of the X-ray source on the stellar wind of the primary. The systems are SMC X-1, 4U1700-37 and the Be/X-ray binary 4U 1145-619. All three systems show phase-dependent changes in the stellar wind lines, indicating the pulsar ionizes the circumbinary material as it moves through the binary orbit, producing X-rays while accreting some of the ambient stellar wind from the massive primary star. Each system was observed at several phases of the binary period, which enabled us to determine spectral variability with phase. The spectra show significant variability in the P-Cyni wind profiles, especially O VI 1032-38.

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