| Proposal ID | 086365 |
| Title | Black Hole Spin and Mapping Accretion Flow Evolution in Tidal Disruption Flares |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0863650101 |
| DOI | https://doi.org/10.57780/esa-puyaqk2 |
| Principal Investigator, PI | Dr Dheeraj Pasham |
| Abstract | 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 newlydiscovered TDF in cycle 19. The primary goals are to 1) search for a QPO whoseperiod--combined with the black hole mass--will directly constrain the holesspin, 2) measure the dependence of super-Eddington accretion flow properties onmass 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 tomeasure the newly formed accretion disks size. All these science goals rely onhighly sensitive, uninterrupted observations which can currently only be made by XMM. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-07-18T01:14:44Z/2020-07-22T15:56:55Z |
| Version | 18.02_20200221_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 | 2021-08-11T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "tidal disruption flares", "black hole spin", "ultra fast outflow", "period combined", "successful discovery", "mass accretion rate", "formed accretion disk", "rgs spectra", "blackhole mass", "om data", "XMM", "uv light curves", "time lag" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Dheeraj Pasham, 2021, 'Black Hole Spin and Mapping Accretion Flow Evolution in Tidal Disruption Flares', 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-puyaqk2 |