|Title||Follow-up Observation of a Hyperluminous Intermediate-mass Black Hole Candidate|
|Author||Dr Dacheng Lin|
|Description||Intermediate-mass black holes (IMBH, ~10^2-10^5 msun) have been long sought after because they are associated with several important astrophysical processes. The best IMBH candidates are hyperluminous off-nuclear X-ray sources (HLXs) with LX>10^41 erg-s, but very few are known. We have identified a new HLX candidate (LX~10^43 erg-s), at an offset of 11.6" (12 kpc) from the center of its host galaxy (D_L=247 Mpc). We request a deep (60 ks) XMM-Newton observation of the source in AO17 to measure its flux and spectral evolution while it is in the decay phase of a prolonged outburst, in order to demonstrate its IMBH nature and confirm our tidal disruption event explanation for the outburst. An HST orbit is also requested to confirm that our source is in a star cluster.|
|Publication||Multiwavelength Follow-up of the Hyperluminous Intermediate-mass Black Hole Candidate 3XMM J215022.4-055108 . Lin, Dacheng, Strader, Jay, et all. . ApJ . 892-25 . 2020 . 2020ApJ...892L..25L ,
|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, 2019-06-18T22:00:00Z, 082336, 17.56_20190403_1200. https://doi.org/10.5270/esa-2ur527v|