|Title||An XMM-Newton Measurement of the Fastest Known Cluster Merger in the Universe|
|Author||Dr Tony Mroczkowski|
|Description||To employ galaxy clusters as cosmological standards and astrophysical laboratories, we must better understand how the cluster dynamical state maps to its observational properties in extreme circumstances, yet fewer than a dozen mergers have velocity measurements reliable enough for detailed modeling. One dramatic merger, selected for follow-up X-ray observations by its ultra-steep spectrum radio emission, is Abell 2443. Recently, a 98 ksec Chandra observation provided 2.9-sigma evidence that the bullet-like core of A2443 is significantly blueshifted with respect to its surroundings. We propose deep XMM observations to answer the question, ..What is the true line of sight component of the gas.s velocity?.|
|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, 2016-06-16T22:00:00Z, 076247, 17.56_20190403_1200. https://doi.org/10.5270/esa-th5r62q|