Ultra-Compact X-ray Binaries in the Galactic Bulge

Details Ultra-Compact X-ray Binaries in the Galactic Bulge Ultra-Compact X-ray Binaries in the Galactic Bulge

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1314..312v&link_type=abstract

INTERNATIONAL CONFERENCE ON BINARIES: In celebration of Ron Webbink's 65th Birthday. AIP Conference Proceedings, Volume 1314, p

Computer Science

1

X-Ray Binary Stars, Galaxies, Supernovae, Stellar Evolution, X-Ray Binaries, Galactic Halo, Supernovae, Black Holes

Scientific paper

We model the present-day number and characteristics of ultra-compact X-ray binaries (UCXBs) in the Galactic Bulge. The main objective is to compare the results with the forthcoming data from the Galactic Bulge Survey (GBS) in order to learn about formation scenarios, notably core collapse supernova rate, common envelope evolution and dynamical interactions, as well as the binary initial mass function. We use a binary population synthesis code and detailed stellar evolutionary tracks, combined with observations of the 11 known UCXBs. We predict a few hundred faint UCXBs with periods of 20-40 minutes that would be detectable by the GBS.

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