Evolution of Close Binaries: Formation and Merger of Neutron Star Binaries

Details Evolution of Close Binaries: Formation and Merger of Neutron Star Binaries Evolution of Close Binaries: Formation and Merger of Neutron Star Binaries

1998-01-14

arxiv.org/abs/astro-ph/9801127v1

Astronomy and Astrophysics

Astrophysics

9 pages, 3 figures, LaTex (uses art10.sty, frontier.sty, psfig.sty). To appear in the proceedings of the "Second Workshop on G

Scientific paper

We discuss the formation and evolution of binaries which contain neutron stars or black holes. It is shown that in a stellar system which for $10^{10}$ yr had star formation rate similar to the current one in the Galactic disc, the rate of neutron star mergers is $\sim 2 \times 10^{-5} yr{-1}$, consistent with the observational estimates. The rate of black hole and neutron star mergers is by an order of magnitude lower. The pairs of black holes form but do not merge because heavy mass loss by their progenitors efficiently moves the binary components apart.

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