|Title||Black Hole Spin and Mapping Accretion Flow Evolution in Tidal Disruption Flares|
|Author||Dr Dheeraj Pasham|
|Description||Following our successful discovery of a stable X-ray quasi-periodic oscillation (QPO) and an ultra fast outflow from the poster child tidal disruption flare (TDF) ASASSN-14li with XMM, we propose TOO observations (50+100 ks) of a newly discovered TDF in cycle 19. The primary goals are to 1) search for a QPO whose period--combined with the black hole mass--will directly constrain the hole.s spin, 2) measure the dependence of super-Eddington accretion flow properties on mass accretion rate using RGS spectra, and 3) search for a correlated behavior, and a time lag, between the X-ray and the UV light curves using OM data to measure the newly formed accretion disk.s size. All these science goals rely on highly sensitive, uninterrupted observations which can currently only be made by XMM.|
|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, 2021-08-11T00:00:00Z, 086365, 18.02_20200221_1200. https://doi.org/10.57780/esa-puyaqk2|