Proposal ID | 003214 |
Title | Chasing quasar 2 with XMM |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0032140101 |
DOI | https://doi.org/10.5270/esa-bvcdzbq |
Principal Investigator, PI | Dr Fabrizio Fiore |
Abstract | Highly obscured quasar~2 have been proposed as the main contributorsto the hard X-ray background. Despite years of searches only anhandful of such sources is known. We propose to observe with XMM asample of 9 relatively bright (F(5-10 keV)=2-10E-13 cgs) High EnergyLLarge Area Survey (HELLAS) X-ray sources, discovered by the BeppoSAXMECS in the hard X-ray band 5-10 keV. We selected the sourcesaccording to two criteria: a) highest hardness ratio in the 2-10 keVband; highest ratio between the MECS 5-10 band and the ROSAT 0.5-2 keVband. This should select obscured sources in which the nucleus |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2001-02-28T23:52:04Z/2002-01-03T18:53:24Z |
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 | 2003-02-01T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "kev band", "hardness ratio", "relatively bright f5", "hard xray background", "hard xray band", "energy llarge", "ROSAT", "BeppoSAX", "select obscured sources", "bepposax mecs", "XMM", "chasing quasar", "hellas xray sources", "main contributors", "obscured quasar" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Fabrizio Fiore, 2003, 'Chasing quasar 2 with XMM', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-bvcdzbq |