| Proposal ID | 082239 |
| Title | Characterizing the Intrinsic Absorption Along the Merger Sequence with XMM-Newto |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0822390301 |
| DOI | https://doi.org/10.5270/esa-cp8r80f |
| Principal Investigator, PI | Prof Shobita Satyapal |
| Abstract | Interactions between galaxies are predicted to cause gas inflows that canpotentially trigger nuclear activity. Since the inflowing material can obscurethe central regions of interacting galaxies, a potential limitation of previousoptical studies is that obscured AGNs can be missed at various stages along themerger sequence. In a recent large MIR study of AGNs in mergers, we demonstratedthat the fraction of obscured AGNs increases with merger stage relative to awell-defined control sample, with the most energetically dominant opticallyobscured AGNs becoming more prevalent in the most advanced mergers. We proposeto observe with XMM all MIR-selected AGNs in advanced mergers from our sample toquantify the intrinsic absorption along the merger sequence. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2018-07-08T17:37:44Z/2019-04-18T07:34:38Z |
| Version | 17.56_20190403_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 | 2020-05-24T22:00:00Z |
| Last Update | 2026-03-04 |
| Keywords | "xmm newto", "merger stage relative", "merger sequence", "XMM", "advanced mergers", "defined control sample", "obscured agns", "gas inflows", "potential limitation", "interacting galaxy", "obscured agns increases", "inflowing material", "central region" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Shobita Satyapal, 2020, 'Characterizing the Intrinsic Absorption Along the Merger Sequence with XMM-Newto', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-cp8r80f |