A dataset provided by the European Space Agency

Name 015329
Title Probing the nature of the soft X-ray spectral flattening in high-z quasars


DOI https://doi.org/10.5270/esa-xlvwow3
Author Dr Weimin Yuan
Description We propose to observe the quasar RXJ1028.6-0844 at z=4.3 to investigate the nature of the intriguing soft X-ray spectral flattening in high-z quasars. Specifically, we will attempt to discriminate the hypotheses of absorption or intrinsic spectral flattening, by detecting the Fe K-shell absorption edge predicted by the former model. A positive detection of such an edge will also allow us to determine the location and other physical parameters of the potential absorber.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2003-06-13T10:31:22Z/2003-06-13T22:34:10Z
Version 17.56_20190403_1200
Mission Description The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 2004-07-02T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2004-07-02T00:00:00Z, 015329, 17.56_20190403_1200. https://doi.org/10.5270/esa-xlvwow3