| Proposal ID | 084404 |
| Title | XMM-Newton Follow-up of a Decade-long super-Eddington Accreting Tidal Disruption |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0844040101 |
| DOI | https://doi.org/10.57780/esa-sowyeaw |
| Principal Investigator, PI | Dr Dacheng Lin |
| Abstract | We have discovered an unprecedentedly long ($>$10 yrs) X-ray tidal disruptionevent candidate. It showed several interesting signatures of super-Eddingtonaccretion: quasisoft X-ray spectra, Eddington-limited luminosity, and latertransition to the thermal state of much softer spectra. Therefore this eventprovides a unique opportunity for study of super-Eddington accretion ontosupermassive black holes. The source now apprears to be in the thermal state. werequest XMM-Newton to have one more observation in AO18 on this target, twoyears after the last monitoring and when the event is turning to a phase offaster decay. Continued monitoring is critical for the modeling of the event andconfirmation of its nature as the most spectacular tidal disruption event known. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-02-21T03:13:01Z/2020-02-21T12:14:41Z |
| Version | 18.02_20200221_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 | 2021-03-13T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "XMM", "supermassive black holes", "xmm newton", "faster decay", "XMM-Newton", "softer spectra", "super eddington accretion", "eddington limited luminosity" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Dacheng Lin, 2021, 'XMM-Newton Follow-up of a Decade-long super-Eddington Accreting Tidal Disruption', 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-sowyeaw |