|Title||Probing the nature of the soft X-ray spectral flattening in high-z quasars|
|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|
|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.
|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|