Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jsara...4...12g&link_type=abstract
Journal of the Southeastern Association for Research in Astronomy, vol. 4, p. 12-14
Astronomy and Astrophysics
Astronomy
X-Rays Stars: Early-Type, Stars: α Cru, Stars: Winds, Outflows
Scientific paper
The star α Cru is an early B type subgiant star recently observed by the Chandra X-ray Observatory. This star is of particular interest due to the observed X-ray emission produced by shocks that form in the stellar wind. We observe hydrogen-like Oviii and helium-like Ovii spectral lines in the Low Energy Transmission Grating spectrum. The Ovii produces a characteristic triplet line. We provide an analysis of the helium-like triplet that explains the conditions in the stellar wind where that line emission is formed. α Cru is also an ultraviolet bright star, so an International Ultraviolet Explorer observation is used to explain the effect of ultraviolet pumping on the forbidden component of the Ovii triplet line. The data appear basically consistent with theoretical models of shocks in stellar winds by Owocki, Castor,& Rybicki (1988) and Feldmeier et al. (1997).
Gorski Mark
Ignace Richard
No associations
LandOfFree
An X-Ray Analysis of α CRU does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with An X-Ray Analysis of α CRU, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An X-Ray Analysis of α CRU will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1226151