|Title||Probe the first shock generated in a major merger|
|Author||Dr Liyi Gu|
|Description||We propose to observe the outskirt along the merger equator of a cluster pair 1E 2216.0-0401 and 1E 2215.7- 0404. This is a textbook pre-merger system, where a unique equatorial shock has been discovered using the recent XMM-Newton and Chandra observations proposed by the PI. We request a follow-up EPIC exposure of 140 ks to accurately measure the entropy distribution along the equatorial region to r200, and to search for other (earlier) equatorial shocks in the cluster outskirts. This observation will complete our view on the role played by equatorial shocks in energy transfer and circum-cluster heating during the cluster formation.|
|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, 2022-12-10T00:00:00Z, 088121, 19.16_20210326_1200. https://doi.org/10.57780/esa-n20xn43|