Recent simulations suggest that shocks in clusters have a long-lasting impact onthe energetics and temperature distribution of the cluster gas. As a result allclusters should contain diffuse and filamentary regions with non-thermalparticles that predominantly radiate at extremely low radio frequencies. Here wepropose XMM-Newton observations of the best candidate for such a long-livedshocked system, the 74 MHz radio source VLSS J1431.8+1331, located in a clusterat z=0.16. The aims of the observations are to characterize the dynamical stateof the cluster and to relate density and temperature variations to the radiostructure. This will allow us to study the evolution of the energy content ofboth the thermal and non-thermal gas in the cluster on extremely long timescales.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2009-07-25T04:22:24Z/2009-07-25T16:51:04Z
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 Huub Rottgering, 2010, 'Persistent shocks and feedback processes in the cluster VLSS J1431.8+1331', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-nh76cky
