2007MNRAS.379..123Z


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.16CEST14:25:43

2007MNRAS.379..123Z - Mon. Not. R. Astron. Soc., 379, 123-129 (2007/July-3)

Modelling the energy dependencies of high-frequency quasi-periodic oscillations in black hole X-ray binaries.

ZYCKI P.T., NIEDZWIECKI A. and SOBOLEWSKA M.A.

Abstract (from CDS):

We model energy dependencies of the quasi-periodic oscillations (QPOs) in the model of disc epicyclic motions, with X-ray modulation caused by varying relativistic effects. The model was proposed to explain the high-frequency QPO observed in X-ray binaries. We consider two specific scenarios for the geometry of accretion flow and spectral formation. First, a standard cold accretion disc with an active X-ray emitting corona is assumed to oscillate. Secondly, only a hot X-ray emitting accretion flow oscillates, while the cold disc is absent at the QPO radius. We find that the QPO spectra are generally similar to the spectrum of radiation emitted at the QPO radius, and they are broadened by the relativistic effects. In particular, the QPO spectrum contains the disc component in the oscillating disc with a corona scenario. We also review the available data on energy dependencies of high-frequency QPO, and we point out that they appear to lack the disc component in their energy spectra. This would suggest the hot flow geometry in the spectral states when high-frequency QPOs are observed.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): accretion, accretion discs - relativity - X-rays: binaries - X-rays: individual: GRO J1655-40 - X-rays: individual: GRS 1915+105 - X-rays: individual: XTE J1550-564

Simbad objects: 7

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Number of rows : 7

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* V381 Nor HXB 15 50 58.6520652623 -56 28 35.309070422   17.95 16.6     K3III 1062 0
2 X Nor X-1 LXB 16 34 01.610 -47 23 34.80           ~ 438 0
3 [GHJ2008] 3 HXB 16 50 00.980 -49 57 43.60     11.89     K4V 358 0
4 V* V1033 Sco HXB 16 54 00.137 -39 50 44.90   15.20 14.2 16.14   F5IV 1751 1
5 NAME XTE J17464-3213 LXB 17 46 15.59637 -32 14 00.8600           ~ 631 0
6 V* V406 Vul HXB 18 58 41.580 +22 39 29.40 15.00 15.65 15.31     G5V-K0V 326 0
7 Granat 1915+105 HXB 19 15 11.55576 +10 56 44.9052           ~ 2361 0

    Equat.    Gal    SGal    Ecl

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2021.04.16-14:25:43

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