|Title||Tracing the evolution of an X-ray selected tidal disruption event|
|Author||Mr Richard Saxton|
|Description||In a program, running since AO-7, we have used XMM-Newton, Swift, optical and radio observations to monitor the evolution of four tidal disruption events discovered by a near-real time comparison of XMM slew data with the ROSAT all-sky survey. This work has broadly confirmed the original idea that stellar debris returns to the black hole with an index of -5-3 and emits in the soft X-ray band with luminosity following the returning mass. It has shown that the peak X-ray emission is reprocessed and not simply the high-energy tail of thermal emission. We now wish to investigate questions raised by these detailed observations: why do few TDE generate a hard X-ray component? Why is the emission so volatile in the early phase? Why do X-ray selected events not have|
|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, 2020-01-23T23:00:00Z, 080486, 17.56_20190403_1200. https://doi.org/10.5270/esa-eivfnmn|