Volume 417, Number 3, April III 2004
|Page(s)||1039 - 1045|
|Section||Stellar structure and evolution|
|Published online||26 March 2004|
Kinematic model inversions of hot star recurrent DAC data – tests against dynamical CIR models
Department of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK
2 Ústav teoretické fyziky a astrofyziky PřF MU, 611 37 Brno, Czech Republic
3 Astronomický ústav, Akademie věd České republiky, 251 65 Ondřejov, Czech Republic
4 Bartol Research Institute, University of Delaware, Newark, DE 19716, USA
Corresponding author: J. Krtička, email@example.com
Accepted: 21 December 2003
The Discrete Absorption Components (DACs) commonly observed in the ultraviolet lines of hot stars have previously been modelled by dynamical simulations of Corotating Interaction Regions (CIRs) in their line-driven stellar winds. Here we apply the kinematic DAC inversion method of Brown et al. to the hydrodynamical CIR models and test the reliability of the results obtained. We conclude that the inversion method is able to recover valuable information on the velocity structure of the mean wind and to trace movement of velocity plateaux in the hydrodynamical data, though the recovered density profile of the stream is correct only very near to the stellar surface.
Key words: stars: early-type / stars: winds, outflows / stars: mass-loss / line: profiles
© ESO, 2004
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.