A Hot Spot Model for Black Hole QPOs
作者:
Jeremy Schnittman,
Edmund Bertschinger,
期刊:
AIP Conference Proceedings
(AIP Available online 1904)
卷期:
Volume 714,
issue 1
页码: 40-43
ISSN:0094-243X
年代: 1904
DOI:10.1063/1.1780996
出版商: AIP
数据来源: AIP
摘要:
In at least two black hole binary systems, the Rossi X‐Ray Timing Explorer has detected high frequency quasi‐periodic oscillations (HFQPOs) with a 2:3 frequency commensurability. We propose a simple hot spot model to explain the positions, amplitudes, and widths of the HFQPO peaks. Using the exact geodesic equations for the Kerr metric, we calculate the trajectories of massive test particles, which are treated as isotropic, monochromatic emitters in their rest frames. By varying the hot spot parameters, we are able to explain the different features observed in “Type A” and “Type B” QPOs from XTE J1550‐564. In the context of this model, the observed power spectra allow us to infer values for the black hole mass and angular momentum, and also constrain the parameters of the model. © 2004 American Institute of Physics
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