|Title||CONFIRMATION OF A THICK WHIM AT Z|
|Author||Dr ROBERTO MAIOLINO|
|Description||We have retrived and analyzed the archival RGS-XMM spectrum of the QSO Q0056-363, which is located in the background of the Sculptor supercluster. In the spectrum we marginally detect (4sigma) OVII absorption features at the redshift of the intervening supercluster (z=0.10), which is probably tracing Warm-Hot Intergalactic Medium (WHIM) in this large scale structure. If confirmed, the implied column density of OVII is 3e17 cm-2, i.e. one order of magnitude larger than the WHIM previously detected along other random lines of sights. We propose a 100ksec RGS observation to confirm the OVII detection, and to detect or set tight upper limits to the features of OVIII and NeIX, which would allow to constrain the properties of this "thick" WHIM at z=0.10.|
|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, 2005-01-18T00:00:00Z, 020568, 17.56_20190403_1200. https://doi.org/10.5270/esa-44f98sh|