| Name | 084404 |
| Title | XMM-Newton Follow-up of a Decade-long super-Eddington Accreting Tidal Disruption |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0844040101 |
| DOI | https://doi.org/esa-[xxxxxxx] |
| Author | Dr Dacheng Lin |
| Description | We have discovered an unprecedentedly long ( > 10 yrs) X-ray tidal disruption event candidate. It showed several interesting signatures of super-Eddington accretion: quasisoft X-ray spectra, Eddington-limited luminosity, and later transition to the thermal state of much softer spectra. Therefore this event provides a unique opportunity for study of super-Eddington accretion onto supermassive black holes. The source now apprears to be in the thermal state. we request XMM-Newton to have one more observation in AO18 on this target, two years after the last monitoring and when the event is turning to a phase of faster decay. Continued monitoring is critical for the modeling of the event and confirmation of its nature as the most spectacular tidal disruption event known. |
| Publication | No observations found associated with the current proposal |
| 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 Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2021-03-13T00:00:00Z, 084404, 18.02_20200221_1200. https://doi.org/esa-[xxxxxxx] |