Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007uasb.conf..143a&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, Dacs, Sacs, Rotational Velocity, Gaussian Contribution, Random Velocities.
Scientific paper
Spectral lines of Oe and Be stars present DACs or SACs. In this paper we study the C IV line profiles of a sample of 20 Oe stars (from O4 to O7 spectral subtype). Using the model given by Danezis et al. (2003, 2005a,b) we found that the line shapes are very complex and that they can be fitted by a multi-component C IV region. In the sample the region may be divided into two to five subregions which show different kinematical and physical parameters. We give the kinematical parameters of subregions where the C IV resonance lines (λλ 1548.155, 1550.774 °A) are formed.
Antoniou Antonios
Danezis Emanouel
Dimitrijevic Milan S.
Lyratzi Evaggelia
Nikolaidis Dimitris
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