|Title||Understanding the Super-Eddington phase in a Decade-long Tidal Disruption Event|
|Author||Dr Dacheng Lin|
|Description||We have discovered a decade-long X-ray tidal disruption candidate, which recent observations suggest to be still in the super-Eddington accretion phase but with sporadic dramatic spectral softening. We request three XMM-Newton monitorings in AO16 on this target, which is unique for study of the super-Eddington accretion onto supermassive black holes. The goals are to confirm its still being in the super-Eddington accretion phase and to measure the spectral softening occurrence rate, allowing us to determine whether the spectral softening is due to transient high-speed warm absorbers or state transition. We also request an HST orbit to help confirm the nuclear origin of the event and study its environment.|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2019-02-07T23:00:00Z, 080437, 17.56_20190403_1200. https://doi.org/10.5270/esa-mtujea8|