
| Proposal ID | 072440 |
| Title | Uncovering the mechanism behind quasi-periodic oscillations in black holes |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0724400501 |
| DOI | https://doi.org/10.5270/esa-f4vxdxq |
| Principal Investigator, PI | Dr Adam Ingram |
| Abstract | We propose a triggered 200ks XMM-Newton observation of a high inclination blackhole binary in the hard intermediate state. This will allow us to constrain acharacteristic shift in the iron line profile between the rising and fallingphases of the quasi-periodic oscillations (QPOs) observed in these objects. Sucha property is a necessary and sufficient condition of a QPO driven by precessionin the inner regions of the accretion flow and is predicted by our model whichinvokes the relativistic effect of frame dragging. The model predicts the QPOphase dependence of the iron line to be stronger for high inclination sourcesdisplaying intermediate hardness ratios, leaving the hard intermediate state asthe ideal configuration. We will trigger the observation from Swift monitoring throughout the outburst. |
| Publications |
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| Instrument | EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2014-09-21T17:53:16Z/2014-09-24T18:02:31Z |
| Version | 21.51_20241115_1113 |
| Mission Description | The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2015-10-22T22:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "accretion flow", "iron line profile", "XMM-Newton", "qpo phase", "qpo driven", "model predicts", "inclination blackhole binary", "quasi periodic oscillations", "XMM", "ideal configuration", "inner region", "black holes", "relativistic effect", "frame dragging", "hard intermediate", "characteristic shift", "xmm newton", "iron line" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Adam Ingram, 2015, 'Uncovering the mechanism behind quasi-periodic oscillations in black holes', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-f4vxdxq |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |