|Title||UGC 10853: An Unusually Bright Radio Relic-Halo in a Merging Poor Cluster|
|Author||Prof Craig Sarazin|
|Description||UGC 10853 is at the center of an optically poor cluster of galaxies (CGCG 339-038) with a high X-ray luminosity for its optical richness. It also contains a large diffuse radio source which is likely to be a cluster radio relic or halo. The galaxy distribution and existing very shallow ROSAT X-ray image suggest the cluster is undergoing a merger. We propose the first detailed X-ray observation (43 ksec) of this poor cluster. We will determine the global properties of the cluster and estimate its mass. The dynamical state of the cluster will be studied, and we will derive a likely merger scenario. We will search for a merger shock at the sharp NE edge of the radio relic-halo. This observation will extend the study of cluster radio relics to lower mass clusters and groups.|
|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, 2018-03-29T22:00:00Z, 078212, 17.56_20190403_1200. https://doi.org/10.5270/esa-2jsyw8n|