| Proposal ID | 092270 |
| Title | A deep look at the heart of the most luminous QSO in the last 9 Gyr |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0922700101 |
| DOI | https://doi.org/10.57780/esa-4i0cf1g |
| Principal Investigator, PI | Dr Elias Kammoun |
| Abstract | Rapidly accreting QSOs are unique laboratories to understand supermassive blackhole growth, and AGN feedback. Recent observations show that surprisingly, thesesources do not differ much from slowly accreting QSOs. Some of these sourcesshow a unexpected variability, notably in X-rays. Results from eROSITA and ourrecent monitoring of SMSS J1144 (z=0.83, log M/Msun = 9.4, Lbol/LEdd = 1.4) show that this QSO is highly variable on timescales ranging from weeks to a fewmonths. We propose a Swift monitoring of the source that will allow us totrigger two XMM-Newton + NuSTAR ToO to catch the source in the low- andhigh-flux states. This will allow us to better measure the properties of thesource, identify signs of reflection and feedback, and understand the origin of the unusual variability. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2023-06-19T16:21:47Z/2024-01-14T15:50:39Z |
| 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 | 2025-01-26T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | XMM-Newton, OM, RGS, EPIC, X-ray, Multi-Mirror, SAS |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Elias Kammoun, 2025, 'A deep look at the heart of the most luminous QSO in the last 9 Gyr', 21.51_20241115_1113, European Space Agency, https://doi.org/10.57780/esa-4i0cf1g |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |