Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009newar..53..214d&link_type=abstract
New Astronomy Reviews, Volume 53, Issue 7-10, p. 214-221.
Astronomy and Astrophysics
Astronomy
2
Scientific paper
In this review we present our recent investigation of the complex absorption lines in spectra of hot emission stars. The lines are created in a material ejected from stars (here we call it density regions around the objects). Particularly we present a model (GR model) which is developed to study satellite or discrete absorption components (SACs or DACs). Using the model we are able to extract kinematical parameters (rotational, radial and random velocity) and some physical parameters (full width at half maximum, optical depth in the center of the line, column density and absorbed or emitted energy) of the density regions.
Antoniou Antonios
Danezis Emanouel
Dimitrijevic Milan S.
Lyratzi Evaggelia
Popovic Luka C.
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