Spin of Stellar-Mass Black Holes Estimated by a Model of Quasi-Periodic Oscillations
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Abstract
type:Article
We have proposed in previous papers that the high-frequency pair of quasi-periodic oscillations observed in black-hole binaries with a frequency ratio of 3 : 2 are inertial-acoustic oscillations (nearly horizontal oscillations with no node in the vertical direction) or g-mode oscillations, which are resonantly excited on warped relativistic disks. The resonance occurs through horizontal motions. In this model, the dimensionless spin parameter, alpha_*, of the central sources can be estimated when their masses are known from other observations. This estimate is done for three sources (GRO J1665-40, XTE J1550-564, GRS 1915+105). For all of them, we have a〓 〓 0.45.
Journal
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- PASJ : publications of the Astronomical Society of Japan
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PASJ : publications of the Astronomical Society of Japan 58 909-914, 2006-10-25
Astronomical Society of Japan
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Details 詳細情報について
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- CRID
- 1050845762734009088
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- NII Article ID
- 10023943036
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- NII Book ID
- AA1082896X
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- ISSN
- 00046264
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- NDL BIB ID
- 8095871
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- NDL
- CiNii Articles