The rotation speed of the companion star in V395 Car (=2S0921--630)
Shahbaz, T. · Kuulkers, E. · Charles, P. A. · van der Hooft, F. · Casares, J. · van Paradijs, J.
Original · EN
We have obtained high resolution optical spectroscopy of the accretion disc corona source 2S0921--630 (=V395 Car) that constrains the spectral type of the companion star to be most probably K0III. At 6500A the secondary star is found to contribute 25% to the observed flux. The absorption line spectrum of the K0III companion star is broadened (compared to template stars) by a projected rotational velocity of 65+/-9 km/s (1 sigma).
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