| Proposal ID | 080437 |
| Title | Understanding the Super-Eddington phase in a Decade-long Tidal Disruption Event |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0804370301 |
| DOI | https://doi.org/10.5270/esa-mtujea8 |
| Principal Investigator, PI | Dr Dacheng Lin |
| Abstract | We have discovered a decade-long X-ray tidal disruption candidate, which recentobservations suggest to be still in the super-Eddington accretion phase but withsporadic dramatic spectral softening. We request three XMM-Newton monitorings inAO16 on this target, which is unique for study of the super-Eddington accretiononto supermassive black holes. The goals are to confirm its still being in thesuper-Eddington accretion phase and to measure the spectral softening occurrencerate, allowing us to determine whether the spectral softening is due totransient high-speed warm absorbers or state transition. We also request an HSTorbit to help confirm the nuclear origin of the event and study its environment. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2017-07-21T00:15:49Z/2018-01-20T21:46:56Z |
| Version | 17.56_20190403_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 | 2019-02-07T23:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "hst orbit", "nuclear origin", "super eddington phase", "supermassive black holes", "tidal disruption event", "XMM-Newton", "xmm newton monitorings", "super eddington accretion", "speed warm absorbers", "XMM", "spectral softening", "HST" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Dacheng Lin, 2019, 'Understanding the Super-Eddington phase in a Decade-long Tidal Disruption Event', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-mtujea8 |