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arXiv:0706.0092 (astro-ph)
[Submitted on 1 Jun 2007]

Title:Rms-flux relation of Cyg X-1 with RXTE: dipping and nondipping cases

Authors:Y.J. Lei, L.M. Song, J.L. Qu, C.M. Zhang
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Abstract: The rms (root mean square) variability is the parameter for understanding the emission temporal properties of X-ray binaries (XRBs) and active galactic nuclei (AGN).
The rms-flux relation with Rossi X-ray Timing Explorer (RXTE) data for the dips and nondip of black hole Cyg X-1 has been investigated in this paper. Our results show that there exist the linear rms-flux relations in the frequency range 0.1-10 Hz for the dipping light curve. Moreover, this linear relation still remains during the nondip regime, but with the steeper slope than that of the dipping case in the low energy band. For the high energy band, the slopes of the dipping and nondipping cases are hardly constant within errors. The explanations of the results have been made by means of the ``Propagating Perturbation'' model of Lyubarskii (1997).
Comments: 15 pages, 12 figures, Accepted for publication in Astrophysics & Space Science
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:0706.0092 [astro-ph]
  (or arXiv:0706.0092v1 [astro-ph] for this version)
  https://doi.org/10.48550/arXiv.0706.0092
Journal reference: Astrophys.SpaceSci.310:307-315,2007
Related DOI: https://doi.org/10.1007/s10509-007-9534-4

Submission history

From: YaJuan Lei [view email]
[v1] Fri, 1 Jun 2007 08:36:31 UTC (101 KB)
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