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.
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.
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
