We propose an XMM-Newton observation of the galaxy cluster Abell 2254 (z=0.178),which contains a remarkably powerful radio halo compared to the strength of itsX-ray emission. This target has never before been observed with XMM-Newton orChandra; it was detected in the ROSAT All-Sky Survey and is an X-ray brightsystem. The presence of a luminous, diffuse radio halo suggests that Abell 2254is a dynamically young merging cluster undergoing a major merger event. Wepropose to carry out the first detailed X-ray study of the cluster and mapping,in detail, the complex thermodynamics of the merger. We will search for coldfronts, shocks and other sites of particle acceleration, and place limits onpossible .non-thermal. emission.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2009-08-26T02:03:59Z/2009-08-26T19:05:56Z
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, Mr Evan Million, 2010, 'A First Look at the Merging Cluster Abell 2254 with XMM-Newton', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-pn75fvh
