|Title||The giant radio halo in the low-luminosity X-ray cluster Abell 523|
|Author||Dr Fabio Gastaldello|
|Description||We propose a joint XMM-NuSTAR observation of the cluster Abell 523. We recently found in this cluster a radio halo that is striking because it is in a low luminosity X-ray cluster, outside of the well established radio power - X-ray luminosity relation for radio halo clusters. This challenges the current scenario for radio halo formation. The joint XMM-NuSTAR observation will afford a detailed mapping of the surface brightness and temperature distribution of the thermal gas and will allow a detailed investigation of the Inverse Compton (IC) emission in one of the best targets to perform this search. In the case of a detection it will provide a measurement of the spatial distribution of the IC emission and a measurement of the magnetic field.|
|Publication||A joint XMM-NuSTAR observation of the galaxy cluster Abell 523: Constraints on inverse Compton emission . Cova, F., Gastaldello, F., et all. . A&A . 628-83 . 2019 . 2019A&A...628A..83C ,
Merging Cluster Collaboration: A Panchromatic Atlas of Radio Relic Mergers . Golovich, N., Dawson, W. A., et all. . ApJ . 882-69 . 2019 . 2019ApJ...882...69G ,
|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, 2017-03-18T23:00:00Z, 076107, 17.56_20190403_1200. https://doi.org/10.5270/esa-712sqvn|