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 virgul4 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.
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.
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
