A dataset provided by the European Space Agency

Name 020369


DOI https://doi.org/10.5270/esa-9dn1iyf
Description X-ray observations of galaxy groups currently give the best evidence that non-gravitational processes cause departures from self-similarity. There are many types of groups, possibly related to different evolutionary states; spiral-dominated compact groups have been neglected in X-ray studies until recently. We propose to observe three spiral-rich HCGss with XMM in order to: (i) test whether such groups constitute a subclass of groups with specific X-ray characteristics, or whether their properties are simple extrapolations of those of elliptical-dominated groups; (ii) check the pre-heating scenario and compare different sources for this energy and entropy input; (iii) explore the relation between galaxy activity and intragroup gas enrichment.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2004-12-26T19:30:15Z/2004-12-27T09:05:24Z
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 2006-02-03T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2006, 020369, 17.56_20190403_1200. https://doi.org/10.5270/esa-9dn1iyf