A dataset provided by the European Space Agency

Proposal ID 060603
Title Unveiling obscured accretion: The XMM-Newton view of IR selected SWIRE QSO2s
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0606030101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0606030201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0606030301

DOI https://doi.org/10.5270/esa-s82w0f2
Principal Investigator, PI Dr Fabrizio Fiore
Abstract Highly Obscure (CT) QSOs are expected to be as numerous as unobscured QSOs athigh z. However, these elusive AGN are rare in even the deepest X-ray surveys.The selection criteria based on Mid-Ir and Optical colors is successfull topin-point many candidate CT QSOs. We selected a sample of 3 candidates obscuredQSOs by making use of multiwavelength data available in the SWIRE survey on 30deg2, requiring extreme values of the Mid-IR/Optical flux ratio and bright 24mum fluxes. We propose XMM-Newton observations for these 3 extreme sources. Byjoining this sample to the CDFs and COSMOS samples we will be able to determinethe evolution of the obscured AGN population at high z.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2009-10-17T22:50:53Z/2010-04-13T23:01:25Z
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 2011-05-08T00:00:00Z
Last Update 2025-01-27
Keywords "swire survey", "xmm newton", "candidates obscured qsos", "candidate ct qsos", "cosmos samples", "multiwavelength data", "obscured agn population", "optical colors", "unobscured qsos", "unveiling obscured accretion", "swire qso2s", "elusive agn", "mum fluxes", "optical flux ratio", "mid ir", "XMM-Newton", "selection criteria", "obscure ct qsos", "deepest xray surveys", "XMM"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Fabrizio Fiore, 2011, 'Unveiling obscured accretion: The XMM-Newton view of IR selected SWIRE QSO2s', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-s82w0f2