| Proposal ID | 088408 |
| Title | Confirmation of a new population of cocooned AGN |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0884080101 |
| DOI | https://doi.org/10.57780/esa-nabfd1a |
| Principal Investigator, PI | Ms Claire Greenwell |
| Abstract | Cocooned AGN are a new population of AGN selected with MIR properties indicativeof powerful quasars, but quiescent galaxy-like optical spectra, includingweak-to-absent OIII emission. This is likely due to AGN youth or ~4 picovering factor obscuring material enshrouding the AGN, but the existing minimalX-ray data has been insufficient to differentiate between these scenarios. Wepropose a targeted campaign of 8 of the brightest CAGN in our sample. AnXMM-Newton exposure quasi-simultaneously with NuSTAR is sufficient to make thisdistinction, even up to Compton-thick levels of obscuration, with parameterdegeneracies. These observations are essential to determine the emissionmechanism responsible for the CAGN and hence push towards a complete census of black hole growth evolution. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-09-25T10:25:17Z/2021-09-26T00:01:57Z |
| Version | 19.16_20210326_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 | 2022-10-12T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "targeted campaign", "cocooned agn", "agn youth", "parameter degeneracies", "mir properties indicative", "quiescent galaxy", "complete census", "XMM-Newton", "powerful quasars", "optical spectra", "blackhole growth", "emission mechanism", "brightest cagn", "NuSTAR", "push towards", "XMM", "compton thick levels" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Ms Claire Greenwell, 2022, 'Confirmation of a new population of cocooned AGN', 19.16_20210326_1200, European Space Agency, https://doi.org/10.57780/esa-nabfd1a |