A dataset provided by the European Space Agency

Proposal ID 060431
Title New local Compton-thick AGN from the deepest INTEGRAL survey
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DOI https://doi.org/10.5270/esa-h57gx2c
Principal Investigator, PI Dr Stephane Paltani
Abstract Accretion is recognized to play a significant role in galaxy evolution. Theorypredict the existence of deeply buried AGN. The cosmic X-ray background stronglysupports the existence of very absorbed, Compton-thick AGN; however, very few ofthem have been detected in hard X-ray surveys. We propose to observe 6 very goodCompton-thick candidates detected in the deepest extragalactic survey performedby INTEGRAL. These sources have been confirmed in short Chandra observations.Their hard-to-medium X-ray flux ratios are larger by a factor 5-10 than thoseexpected for an unabsorbed, G=1.9 power law. These observations will verystrongly constrain the fraction of Compton-thick AGN at the faintest hard X-rayfluxes, making a stringent test of X-ray background synthesis models.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2009-06-15T06:59:01Z/2009-07-14T15:25:27Z
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 2010-08-04T00:00:00Z
Keywords "compton thick agn", "deepest integral survey", "galaxy evolution", "hard xray surveys", "power law", "short chandra", "cosmic xray background", "theory predict", "stringent test", "compton thick candidates", "deeply buried agn"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Stephane Paltani, 2010, 'New local Compton-thick AGN from the deepest INTEGRAL survey', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-h57gx2c