Mass of the components of the strongly interacting binary RX Cassiopeiae

Details Mass of the components of the strongly interacting binary RX Cassiopeiae Mass of the components of the strongly interacting binary RX Cassiopeiae

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pazh...12..212a&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 12, Mar. 1986, p. 212-218) Soviet Astronomy Letters (ISSN 0360-0327), vol. 12, Mar.-Apr

Astronomy and Astrophysics

Astronomy

2

Absorption Spectra, Accretion Disks, Binary Stars, Stellar Mass, Stellar Spectra, Line Spectra, Radial Velocity, Stellar Mass Accretion, Stellar Mass Ejection

Scientific paper

Results of 1979 - 1982 spectroscopic observations of RX Cas are presented. It is shown that the absorption A2 - A5 spectrum primary component is a spectrum of an extended accretion disk, while the secondary component has a K0(II-III) spectrum. The radial velocity curves derived from the lines of primary and secondary components are symmetrical with γ = -25 km/s and semi-amplitudes K1 = 14 km/s and K2 = 87 km/s. The masses of the components are estimated to be M1 = 3.00 M_sun; and M2 = 0.48 M_sun;. From the mass ratio q = M2/M1 = 0.16 it is evident that RX Cas is near the final stage of the case B of mass exchange.

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