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Energy spectra of X-ray quasi-periodic oscillations in accreting black hole binaries
| Content Provider | Scilit |
|---|---|
| Author | Życki, P. T. Sobolewska, M. A. Niedźwiecki, A. |
| Copyright Year | 2006 |
| Description | We investigate the energy dependencies of X-ray quasi-periodic oscillations in black hole X-ray binaries. We analyze RXTE data on both the low- and high-frequency QPO. We construct the low-f QPO energy spectra, and demonstrate that they do not contain the thermal disk component, even though the latter is present in the time averaged spectra. The disk thus does not seem to participate in the oscillations. Moreover the QPO spectra are harder than the time averaged spectra when the latter are soft, which can be modeled as a result of modulations occurring in the hot plasma. The QPO spectra are softer than the time averaged spectra when the latter are hard. The absence of the disk component in the QPO spectra is true also for the high-frequency (hecto-Hz) QPO observed in black hole binaries. We compute the QPO spectra expected from the model of disk resonances. |
| Related Links | https://www.cambridge.org/core/services/aop-cambridge-core/content/view/50A5D946BCBE6DA0C16C67B65E40A75F/S1743921307004607a.pdf/div-class-title-energy-spectra-of-x-ray-quasi-periodic-oscillations-in-accreting-black-hole-binaries-div.pdf |
| Ending Page | 18 |
| Page Count | 6 |
| Starting Page | 13 |
| ISSN | 17439213 |
| e-ISSN | 17439221 |
| DOI | 10.1017/s1743921307004607 |
| Journal | Proceedings of the International Astronomical Union |
| Issue Number | S238 |
| Volume Number | 2 |
| Language | English |
| Publisher | Cambridge University Press (CUP) |
| Publisher Date | 2006-08-01 |
| Access Restriction | Open |
| Subject Keyword | Proceedings of the International Astronomical Union Astronomy and Astrophysics Particles and Fields Physics rays |
| Content Type | Text |
| Resource Type | Article |
| Subject | Astronomy and Astrophysics Space and Planetary Science |
