Long term variability of the coronal and post - coronal C IV region of the Oe star HD 93521

Details Long term variability of the coronal and post - coronal C IV region of the Oe star HD 93521 Long term variability of the coronal and post - coronal C IV region of the Oe star HD 93521

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007uasb.conf..113d&link_type=abstract

UV Astronomy: Stars from Birth to Death. Proceedings of the Joint Discussion n.4 during the IAU general Assembly of 2006. Ana I.

Astronomy and Astrophysics

Astronomy

Oe Stars, Hd 93521, Sacs, Best Fit, Rotational Velocity, Random Velocity

Scientific paper

SACs in the C IV regions of HD 93521 We examine the timescale changes of C IV spectral lines of the Oe star HD 93521, during a period of 16 years, applying the model proposed by Danezis et al. (2003, 2005a, b). We found that the spectral lines consist of one or more Satellite Absorption Components (SACs or DACs) which construct the whole spectral profile. In this paper we present the time scale variation of the rotational and random velocities.

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