A spectroscopic ephemeris of the secondary star in the AM Herculis binary V 834 Centauri

Details A spectroscopic ephemeris of the secondary star in the AM Herculis binary V 834 Centauri A spectroscopic ephemeris of the secondary star in the AM Herculis binary V 834 Centauri

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...267..103s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 267, no. 1, p. 103-106.

Astronomy and Astrophysics

Astrophysics

19

Binary Stars, Cataclysmic Variables, Emission Spectra, Stellar Spectra, X Ray Absorption, Line Spectra, White Dwarf Stars

Scientific paper

We present a spectroscopic ephemeris of the polar V834 Cen based on timings of a narrow emission-line component which is attributed to the secondary star. Changes in the accretion geometry become obvious from the observed phase jitter of optical photometric minima and soft X-ray absorption dips. We estimate the mass of the accreting white dwarf using the model for the X/UV-illuminated hemisphere of the secondary star described in Beuermann & Thomas (1990).

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