The rotation speed of the companion star in V395 Car (=2S0921--630)

Details The rotation speed of the companion star in V395 Car (=2S0921--630) The rotation speed of the companion star in V395 Car (=2S0921--630)

1998-12-23

arxiv.org/abs/astro-ph/9812440v1

Astronomy and Astrophysics

Astrophysics

4 pages, 1 figure, Accepted by A&A

Scientific paper

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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