|Title||SHOCK FRONT IN A521 AND NEW METHOD OF MEASURING INTRACLUSTER MAGNETIC FIELD|
|Author||Dr Maxim Markevitch|
|Description||Shock fronts provide a unique tool to study the cluster plasma. So far only two unambiguous examples have been discovered, those in 1E0657 and A520. We propose to confirm and quantify another candidate, an X-ray brightness edge detected in a short Chandra observation of A521 at the location of a prominent radio relic. Owing to its geometry and the excellent multifrequency radio data on the relic, this shock front will enable a novel measurement of the intracluster magnetic field, based on the width of the radio relic and the gas velocities determined from the X-ray data. The proposed observation will unambiguously confirm the existence of the brightness edge and the fact that this is a shock front, and determine its Mach number.|
|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, 2010-09-02T00:00:00Z, 060389, 17.56_20190403_1200. https://doi.org/10.5270/esa-ej63axk|