|Title||The strongest shock around an FRII radio galaxy?|
|Author||Dr Judith Croston|
|Description||We have detected a 200-kpc scale shock in the intracluster medium surrounding the FRII radio galaxy 3C 444 in a short Chandra observation. Our existing data have allowed us to identify a sharp surface brightness discontinuity and a clear temperature jump, which corresponds to a Mach number of at least 1.7. This is the clearest example to date of a shock associated with a powerful FRII radio galaxy, and potentially the strongest cluster-scale radio-galaxy shock detected to date. We request a deep XMM-Newton observation in order to obtain accurate measurements of the shock conditions and a detailed map of the ICM temperature distribution, which will enable us to confirm the shock strength and carry out the first detailed investigation of the environmental impact of an FRII radio galaxy.|
|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, 2013-12-04T00:00:00Z, 069184, 17.56_20190403_1200. https://doi.org/10.5270/esa-wkxqf2j|