We propose a 10 ks snapshot of the Eastern edge of the Perseus Cluster, along alarge-scale structure filament seen in the galaxy distribution. This is the onlyregion so far where we have detected emission from beyond the virial radius ofthis cluster with Suzaku, but the systematic uncertainty due to the underlyingpoint source flux is much larger than the statistical error of the measurement.This observation will allow us to detect point sources an order of magnitudefainter than with Suzaku and thus decrease this systematic uncertainty by afactor of 3-4. XMM-Newton will therefore play an important role in confirmingthis detection beyond the virial radius, and give us important insight into thephysics at the edge between galaxy clusters and large-scale structure filaments.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2011-08-04T15:10:06Z/2011-08-04T19:52:03Z
Version
17.56_20190403_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 Aurora Simionescu, 2012, 'Beyond the virial radius of the X-ray brightest cluster', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-30k61df
