|Title||Characterizing the Intrinsic Absorption Along the Merger Sequence with XMM-Newto|
|Author||Prof Shobita Satyapal|
|Description||Interactions between galaxies are predicted to cause gas inflows that can potentially trigger nuclear activity. Since the inflowing material can obscure the central regions of interacting galaxies, a potential limitation of previous optical studies is that obscured AGNs can be missed at various stages along the merger sequence. In a recent large MIR study of AGNs in mergers, we demonstrated that the fraction of obscured AGNs increases with merger stage relative to a well-defined control sample, with the most energetically dominant optically obscured AGNs becoming more prevalent in the most advanced mergers. We propose to observe with XMM all MIR-selected AGNs in advanced mergers from our sample to quantify the intrinsic absorption along the merger sequence.|
|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, 2020-05-24T22:00:00Z, 082239, 17.56_20190403_1200. https://doi.org/10.5270/esa-cp8r80f|