A dataset provided by the European Space Agency

Name 084404
Title XMM-Newton Follow-up of a Decade-long super-Eddington Accreting Tidal Disruption


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]