| Proposal ID | 084302 |
| Title | The first systematic study of extreme accretion with XMM-Newton and NuSTAR |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0843020601 |
| DOI | https://doi.org/10.57780/esa-ucoi9jv |
| Principal Investigator, PI | Prof Claudio Ricci |
| Abstract | Super-Eddington accretion periods are expected to be extremely important toexplain the fast growth of the first supermassive black holes. We propose here asystematic broad-band X-ray study of super-Eddington AGN ( Edd = 15 to Edd =427) at z < 0.1 by simultaneously observing five of them with XMM-Newton andNuSTAR. We use the best sample available, SEAMBHs, which contain objects withblack hole masses estimated from reverberation mapping, making the Eddingtonratio estimates extremely reliable. The broad-band observations will allow toshed light on a large number of fundamental issues, such as the behaviour of thecutoff energy, of the reprocessed radiation, of the iron complex and of the softexcess at extreme Eddington ratios. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2019-10-30T09:07:06Z/2019-11-24T00:43:58Z |
| 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 | 2020-12-23T23:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "shed light", "XMM-Newton", "eddington ratios", "fast growth", "eddington ratio", "broad band", "NuSTAR", "soft excess", "XMM", "reprocessed radiation", "iron complex", "supermassive black holes", "cutoff energy", "reverberation mapping", "fundamental issues", "blackhole masses estimated", "xmm newton" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Claudio Ricci, 2020, 'The first systematic study of extreme accretion with XMM-Newton and NuSTAR', 21.51_20241115_1113, European Space Agency, https://doi.org/10.57780/esa-ucoi9jv |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |