Physical parameters, present state, past and future evolution of WZ SGE

Details Physical parameters, present state, past and future evolution of WZ SGE Physical parameters, present state, past and future evolution of WZ SGE

Aug 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....68..455r&link_type=abstract

Astronomy and Astrophysics, vol. 68, no. 3, Aug. 1978, p. 455-457. Research supported by the Deutsche Forschungsgemeinschaft.

Astronomy and Astrophysics

Astrophysics

10

Binary Stars, Novae, Stellar Evolution, Stellar Mass, Roche Limit, Stellar Mass Accretion, Stellar Models, White Dwarf Stars

Scientific paper

As a consequence of an error in the Roche geometry used, some of the physical parameters of WZ Sge determined by Robinson et al. (1978) have to be revised. The new values of the main parameters are: mass ratio of approximately 66; mass of the white-dwarf primary, 0.67 solar mass; mass of the secondary, 0.01 solar mass. The present state, the past, and the future evolution of the system is discussed. It is found that within about 100 million yr the system will have reached a stage where the secondary is a planet filling its Roche lobe.

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