Other
Scientific paper
Dec 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...251..214l&link_type=abstract
Astrophysical Journal, Part 1, vol. 251, Dec. 1, 1981, p. 214-220. Research supported by the Israel Academy of Sciences and Hum
Other
7
Binary Stars, Emission Spectra, Stellar Envelopes, Stellar Luminosity, Stellar Structure, White Dwarf Stars, Lagrangian Equilibrium Points, Line Spectra, Radiation Pressure, Stellar Evolution, Stellar Mass Accretion, Stellar Mass Ejection, Stellar Models, Stellar Spectrophotometry
Scientific paper
A possible mechanism is proposed for the formation of a circumstellar gaseous ring, which surrounds the entire WZ Sge binary system and may be the origin of emission lines observed in the WZ Sge spectrum during its recent outburst. The luminosity of the outburst near or at the surface of the white dwarf component stops the mass transfer from the secondary onto a disk around the primary through the inner Lagrangian point. The radiation pressure causes a flow of mass through the outer Lagrangian point to a new ring around the system. It is noted that similar conditions for the formation of an external ring as in WZ Sge may be encountered in other interacting binary systems, and may prevail in a system of a classical nova during its transition from maximum to minimum luminosity.
Leibowitz Elia M.
Mazeh Tsevi
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