|Title||GAS DENSITY DISCONTINUITIES IN MERGING CLUSTERS|
|Author||Dr Maxim Markevitch|
|Description||One of the interesting Chandra discoveries is the existence of sharp gas density edges in some galaxy clusters. There are two different types of such features, depending on the sign of their temperature jump: a contact discontinuity and a merger bow shock. Both phenomena offer unique insights into the cluster physics, including determining the gas bulk velocity, its acceleration, growth of plasma instabilities, strength and structure of magnetic fields, and thermal conductivity. The nearby clusters A3376 and A3158 are striking examples of such edges. We propose to combine the approved Chandra high-resolution imaging with accurate temperature measurements across these edges with EPIC, which will enable a quantitative study of the ICM physics.|
|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, 2004-04-25T00:00:00Z, 015190, 17.56_20190403_1200. https://doi.org/10.5270/esa-xs6ez9b|