| Proposal ID | 088407 |
| Title | Intermediate-mass black hole candidates in NGC 5917 and NGC 3583 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0884070201 |
| DOI | https://doi.org/10.57780/esa-injlfmi |
| Principal Investigator, PI | Mr Clement Pellouin |
| Abstract | The growth of supermassive black holes (1e6 - 1e9 Msun) already observed atredshift as early as z > 7 is an open question that may have deep implicationsfor the formation and evolution of their host galaxies. This growth is likely toinvolve lighter mass black hole (BH) seeds, the so-called intermediate mass BH(IMBH, 1e3 - 1e5 Msun). However, their existence is still elusive. HyperLuminous extragalactic and off-nuclear X-ray sources (HLX) with LX > 1e41 erg/sappear as good candidates to harbour IMBH, but just a few of them are known. Werequest two XMM-Newton observations to follow two HLX candidates in NGC 5917 NGC 3583 recently identified from the 2SXPS Swift-XRT catalogue and neverobserved by XMM-Newton in order to constrain their spectral properties. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2022-04-23T12:26:42Z/2022-04-23T22:10:02Z |
| Version | 19.17_20220121_1250 |
| 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 | 2023-05-11T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "XMM", "spectral properties", "1e3 1e5 msun", "XMM-Newton", "hyper luminous extragalactic", "NGC 5917", "1e41 erg", "xmm newton", "deep implications", "ngc 5917", "hlx candidates", "ngc 3583" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Mr Clement Pellouin, 2023, 'Intermediate-mass black hole candidates in NGC 5917 and NGC 3583', 19.17_20220121_1250, European Space Agency, https://doi.org/10.57780/esa-injlfmi |