|Title||X-Ray properties of the most luminous obscured QSOs|
|Author||Dr Mari Polletta|
|Description||Using the largest Spitzer surveys (SWIRE & NDWFS) we uncovered an exceptional population of zvirgul2 obscured and extremely luminous QSOs. We propose XMM-Newton observations of 11 sources from our unique sample of the 15 most luminous obscured QSOs currently known. These data will enable us to place constraints on the space density of obscured and extremely luminous QSOs, their contribution to the X-ray background, the high-z and high-L absorption distribution, and the obscured AGN fraction. The properties of the absorber will be also investigated by analyzing the dependency of the dust covering factor with the AGN luminosity, and comparing dust extinction with X-ray absorption. In addition, these observations will provide new templates for obscured QSOs.|
|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, 2009-04-15T00:00:00Z, 050326, 17.56_20190403_1200. https://doi.org/10.5270/esa-36uckvs|