Population synthesis for massive close WR20a-type binaries

Details Population synthesis for massive close WR20a-type binaries Population synthesis for massive close WR20a-type binaries

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008arep...52.1009b&link_type=abstract

Astronomy Reports, Volume 52, Issue 12, pp.1009-1014

Astronomy and Astrophysics

Astronomy

1

97.80.Fk, 97.10.Cv

Scientific paper

We have used the “Scenario Machine” to carry out a population synthesis for close binary systems with the masses of both components and their orbital periods similar to those for the WR20a system. The possible qualitative composition of WR20a, the most massive known binary with non-degenerate components (commonly classified as Wolf-Rayet stars according to their observational parameters), has been studied. Meridional circulation may enrich the envelope of a rapidly rotating main-sequence star in CNO elements. In the most likely model, WR20a consists of a Wolf-Rayet star and a main-sequence star.

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