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High-Mass X-ray Binaries population in the Galaxy

Published online by Cambridge University Press:  12 May 2006

A. A. Lutovinov ,
M. G. Revnivtsev ,
M. R. Gilfanov  and
R. A. Sunyaev
A. A. Lutovinov
Affiliation:
Space Research Institute, Profsoyuznaya str. 84/32, Moscow 117997, Russia email: [email protected] Max-Planck Institut für Astrophysik, Karl-Schwarzschild Str. 1, D-85741 Garching, Germany
M. G. Revnivtsev
Affiliation:
Space Research Institute, Profsoyuznaya str. 84/32, Moscow 117997, Russia email: [email protected] Max-Planck Institut für Astrophysik, Karl-Schwarzschild Str. 1, D-85741 Garching, Germany
M. R. Gilfanov
Affiliation:
Space Research Institute, Profsoyuznaya str. 84/32, Moscow 117997, Russia email: [email protected] Max-Planck Institut für Astrophysik, Karl-Schwarzschild Str. 1, D-85741 Garching, Germany
R. A. Sunyaev
Affiliation:
Space Research Institute, Profsoyuznaya str. 84/32, Moscow 117997, Russia email: [email protected] Max-Planck Institut für Astrophysik, Karl-Schwarzschild Str. 1, D-85741 Garching, Germany
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Abstract

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We study high mass X-ray binaries (HMXBs) in the Galaxy using data of the INTEGRAL observatory. High sensitivity survey of the whole Galaxy with a possibility to detect absorbed sources significantly enlarged our sample of HMXBs in a comparison with the previous studies. Large fraction of detected high mass X-ray binaries is highly photoabsorbed. We investigated the HMXBs distribution along the Galactic plane and found their strong concentrations toward Galactic spiral arms, confirming previous results of Grimm et al. (2002) obtained using smaller sample of sources. We conclude that the mapping of Galactic HMXBs should be important tool to trace the star formation regions at the opposite side of the Galaxy.

Keywords

Galaxy: structureX-rays: galaxiesX-rays: binaries
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Symposium S230: Populations of High Energy Sources in Galaxies , August 2005 , pp. 340 - 344
Copyright
2006 International Astronomical Union