We propose three XMM-Newton snapshot observations to detect all the pointsources in the region between the double galaxy cluster A3528 and the complexA3530/A3532, in which we have discovered hints of a filamentary emission. Thesesnapshots will complement our Suzaku observations. We aim to detect the hottestand densest phase of the Warm Hot Intergalactic Medium in the vicinity ofclusters by its thermal soft X-ray emission. For this purpose, we will use theXMM-Newton observations to correct precisely for the point sources, resulting inan improvement of the temperature measurement uncertainty by a factor of three.In addition to a full understanding of the typical baryon fraction, we willstudy the possible gas clumping in the cluster outskirts.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2020-06-28T15:11:56Z/2020-07-16T15:22:43Z
Version
18.02_20200221_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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.
European Space Agency, Dr Florian Pacaud, 2021, 'Tracing a filament in the outskirts of the Shapley Supercluster', 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-6j6on6f
