
| Proposal ID | 067544 | 
| Title | Searching for the QPO trigger in RE J1034+396 | 
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0675440101 | 
| DOI | https://doi.org/10.5270/esa-x50ck7r | 
| Principal Investigator, PI | Dr Matthew Middleton | 
| Abstract | Black hole binaries show high frequency QPOs, the timescales of which impliesthey must be produced close to the event horizon. Our discovery of the firstsignificant AGN QPO gives a unique opportunity to study these in greater detailthan is possible in BHBs. A single re-observation of the QPO would show that itis a characteristic feature of this source, but the QPO is transient, notpresent in the short followup observations. We propose ~10 snapshots of 30 kseach (the maximum possible visibility in this AO and for the remaining lifetimeof XMM-Newton) to re-detect the QPO and study its properties. This longerobservation will allow a great deal of secondary science to be achieved fromthis important AGN for variability studies including determining the origin of the sources enormous soft excess. | 
| Publications | 
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 | 
| Temporal Coverage | 2011-05-07T09:18:26Z/2011-05-31T18:56:22Z | 
| Version | 17.56_20190403_1200 | 
| 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 | 2012-06-21T00:00:00Z | 
| Last Update | 2025-08-04 | 
| Keywords | "XMM", "XMM-Newton", "qpo trigger", "soft excess", "re j1034", "xmm newton", "frequency qpos", "secondary science", "event horizon", "blackhole binary", "single re" | 
| Publisher And Registrant | European Space Agency | 
| Credit Guidelines | European Space Agency, Dr Matthew Middleton, 2012, 'Searching for the QPO trigger in RE J1034+396', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-x50ck7r |