|Title||Turbulence Dissipation in the Coma Cluster|
|Author||Dr Peter Schuecker|
|Description||We detected the signature of turbulence in the ICM of the Coma cluster. Of special importance is the determination of the dissipation scale where turbulent kinetic energy is expected to be transformed into heat. Presently only upper observational limits could be determined with our previous 50 ks data of the central region. Thus we propose an additional 150 ks XMM-Newton observation of the center of the Coma galaxy cluster. This will push the spatially resolved gas pressure maps to the 20 arcsec angular resolution limit. The significantly deeper exposure will improve on the slope of the turbulence power spectrum, on the determination of the Reynold.s number, and on the kinematic viscosity of the intra-cluster medium.|
|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, 2006-07-13T00:00:00Z, 030053, 17.56_20190403_1200. https://doi.org/10.5270/esa-ehqgpi7|