| Proposal ID | 088121 |
| Title | Probe the first shock generated in a major merger |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0881210101 |
| DOI | https://doi.org/10.57780/esa-n20xn43 |
| Principal Investigator, PI | Dr Liyi Gu |
| Abstract | We propose to observe the outskirt along the merger equator of a cluster pair 1E2216.0-0401 and 1E 2215.7- 0404. This is a textbook pre-merger system, where aunique equatorial shock has been discovered using the recent XMM-Newton andChandra observations proposed by the PI. We request a follow-up EPIC exposure of140 ks to accurately measure the entropy distribution along the equatorialregion to r200, and to search for other (earlier) equatorial shocks in thecluster outskirts. This observation will complete our view on the role played byequatorial shocks in energy transfer and circum-cluster heating during thecluster formation. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-11-14T23:22:15Z/2021-11-17T21:20:16Z |
| Version | 19.16_20210326_1200 |
| Mission Description | The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2022-12-10T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "entropy distribution", "role played", "merger equator", "EPIC", "circum cluster heating", "epic exposure", "cluster formation", "xmm newton", "equatorial shoc", "equatorial region", "XMM-Newton", "equatorial shock", "1e 2215", "XMM", "energy transfer", "cluster outskirts", "major merger" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Liyi Gu, 2022, 'Probe the first shock generated in a major merger', 19.16_20210326_1200, European Space Agency, https://doi.org/10.57780/esa-n20xn43 |