X-ray Variability of the O Star ξ Per

Details X-ray Variability of the O Star ξ Per X-ray Variability of the O Star ξ Per

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...20718227m&link_type=abstract

American Astronomical Society Meeting 207, #182.27; Bulletin of the American Astronomical Society, Vol. 37, p.1468

Astronomy and Astrophysics

Astronomy

Scientific paper

The UV wind lines of the O7.5 III(n)((f)) star, ξ Per, are known to display cyclical time variability with a period that is closely linked to its rotation period. We have obtained Chandra High Energy Transmission Grating data for this star to determine whether its X-ray flux is also modulated by stellar rotation. We demonstrate that its X-rays are, indeed, variable, that the variability might be associated with the rotation period, and discuss the implications of such a connection. We also present and discuss the mean Medium Energy Grating X-ray spectrum of the star.
This work was supported by NASA through the Chandra X-ray Observatory Center, which is operated by the SAO on behalf of NASA under contract NAS8-03060.

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