Evolution of Intermediate-Mass Black Hole X-Ray Binaries | Zendy

XiangDong Li | Zendy

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Evolution of Intermediate-Mass Black Hole X-Ray Binaries

Author(s) -

XiangDong Li

Publication year - 2004

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/426669

Subject(s) - physics , astrophysics , black hole (networking) , intermediate mass black hole , x ray binary , binary black hole , stellar black hole , galaxy , stellar mass , binary number , stars , astronomy , star formation , neutron star , gravitational wave , computer network , routing protocol , routing (electronic design automation) , arithmetic , mathematics , computer science , link state routing protocol

The majority of the ultraluminous X-ray sources (ULXs) in external galaxiesare believed to be accreting black holes in binary systems; some of the blackholes could be as massive as $\sim 100-1000 \ms$. We have performed evolutioncalculations for intermediate-mass black hole X-ray binaries, assuming they areformed in dense star clusters via tidal capture. The results are compared withthose for stellar-mass black holes X-ray binaries. We find that these two typesof black holes may have similar companion stars and binary orbits if observedas ULXs. However, intermediate-mass black holes seem to be favored inexplaining the most luminous ULXs. We also discuss the possibilities oftransient behavior and beamed emission in the evolution of these binarysystems.Comment: 11 pages, 3 figures. Accepted for publication in ApJ

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