The Missing Population of Be+Black Hole X-Ray Binaries

Details The Missing Population of Be+Black Hole X-Ray Binaries The Missing Population of Be+Black Hole X-Ray Binaries

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1010..407s&link_type=abstract

A POPULATION EXPLOSION: The Nature & Evolution of X-ray Binaries in Diverse Environments. AIP Conference Proceedings, Volume 10

Computer Science

1

X-Ray Binaries, Magellanic Stream, Infall, Accretion, And Accretion Disks

Scientific paper

At present, 117 Be/neutron star (Be/NS) X-ray binaries (XRBs) are known in the Galaxy and the Magellanic Clouds, but not a single Be/black hole (Be/BH) binary has been found so far. We carried out the calculations of stellar population synthesis to investigate the case of the apparently missing population of Be/BH XRBs. According to our calculations, the main reason of this disparity is the fact that within the orbital period range where Be XRBs are found, these systems are formed predominantly with a NS componnent. The systems with a BH component are formed predominantly with much longer orbital periods and they are not easy to detect.

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