|Title||[Ne V]-selected heavily obscured QSOs at the epoch of the X-ray background|
|Author||Dr Roberto Gilli|
|Description||Despite extensive searches over a wide wavelength range, the population of heavily obscured, Compton-thick AGN still remains elusive. In particular, at high redshifts and luminosities only a few Compton-thick objects have been discovered. We propose a pilot program of moderately deep XMM exposures (40 to 80 ksec each) to observe 3 luminous QSOs at z~1, which is the epoch where the bulk of the ''missing.. X-ray background is expected to be produced. These QSOs are likely to suffer from heavy obscuration. The targets have been selected from the SDSS DR5 based on their strong [NeV]3427A emission. The proposed observations will unambiguously determine their obscuration degree.|
|Publication||Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift . Yershov, V. N., . Ap&SS . 354-97 . 2014 . 2014Ap&SS.354...97Y ,
XMM-Newton publication statistics . Ness, J.-U., Parmar, A. N., et all. . AN . 335-210 . 2014 . 2014AN....335..210N ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
|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, 2013-04-26T00:00:00Z, 067272, 17.56_20190403_1200. https://doi.org/10.5270/esa-jayz9j5|