Name | 014502 |
Title | XMM observation of cool clusters: identifying the source of the entropy floor |
URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0145020101 |
DOI | https://doi.org/10.5270/esa-911415r |
Author | Dr Monique ARNAUD |
Description | We propose to do high throughput spatially resolved spectroscopy, with XMM, on a sample of 4 cool clusters (1.5<T<3 keV) in the redshift range z=0.04-0.06. We were granted time for the 2 first clusters, MKW9 and A1983 in AO1. The other two clusters, A1991 and A2717, are now proposed for AO2. XMM/EPIC is the best instrument to measure accurately, up to at least half the virial radius, the gas entropy distribution, the relative content and distribution of the gas and dark matter, the abundance of Iron and alpha elements and their gradients. This is key information to identify the origin of the entropy floor observed in clusters. This will allow a major step forward in our understanding of cluster formation and evolution. |
Publication | No observations found associated with the current proposal |
Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2002-12-26T13:13:38Z/2003-02-16T21:59:45Z |
Version | 17.56_20190403_1200 |
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. |
Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
Date Published | 2004-03-14T00:00:00Z |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Monique ARNAUD, 2004, 014502, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-911415r |