On the Evolution, Numbers, and Characteristics of Close-Binary Supersoft Sources

Details On the Evolution, Numbers, and Characteristics of Close-Binary Supersoft Sources On the Evolution, Numbers, and Characteristics of Close-Binary Supersoft Sources

Jan 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996sao..reptt....d&link_type=abstract

Technical Report, Harvard-Smithsonian Center for Astrophysics Amado, AZ United States

Astronomy and Astrophysics

Astronomy

Stellar Models, Stellar Evolution, Binary Stars, Active Galaxies, White Dwarf Stars, Stellar Winds, Emittance, Mass Transfer, X Ray Sources, X Ray Astronomy, Luminosity

Scientific paper

The ability to perform detailed evolutionary calculations is essential to the development of a well-defined and testable binary model. Unfortunately, traditional evolutionary calculations cannot be used to follow a significant fraction of possible close-binary supersoft sources (CBSS's). It is therefore important to examine the in-put physics carefully, to be sure that all relevant and potentially important physical processes are included. In this paper we continue a line of research begun last year, and explore the role that winds are expected to play in the evolution of CBSS's. We find that at least a subset of the systems that seemed to be candidates for common envelope evolution may survive, if radiation emitted by the white dwarf drives winds from the system. We study the effects of winds on the binary evolution of CBSS's, and compute the number and characteristics of CBSS's expected to be presently active in galaxies such as our own or M31.

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