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Proposal ID 020419
Title AN X-RAY SPECTROSCOPIC SURVEY OF RADIO-LOUD QUASARS WITH REDSHIFTS ABOVE 4
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DOI https://doi.org/10.5270/esa-5hl5q75
Principal Investigator, PI Dr WEIMIN YUAN
Abstract We propose to pursue a systematic XMM spectroscopic survey of all known bright(S_5GHz gt 90mJy) radio-loud quasars above a redshift of 4. The proposed sampleconsists of 6 new radio-loud quasars with redshifts above 4, The XMMobservations, combined with the results from the previously observed 4 objects,will address the basic questions concerning the soft X-ray spectral flatteningeffect as found previously (e.g. Yuan et al. 2000, Fabian et al. 2001). Theresults are expected to help to discriminate the models of intrinsic flatteningand X-ray absorption and, if the latter, will yield insight about the nature ofthe possible obscuring matter associated with radio-loud quasars in the earlyUniverse.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2004-02-09T16:35:24Z/2004-07-22T12:14:23Z
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 2005-09-20T00:00:00Z
Keywords "radio loud quasars", "XMM", "obscuring matter", "xray absorption", "xray spectroscopic survey", "sample consists"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr WEIMIN YUAN, 2005, 'AN X-RAY SPECTROSCOPIC SURVEY OF RADIO-LOUD QUASARS WITH REDSHIFTS ABOVE 4', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-5hl5q75