|Title||Hot Gas Enrichment by Dwarf Galaxies in the 5044 Galaxy Group|
|Author||Prof William Mathews|
|Description||Occasionally, as in the 5044 galaxy group, the hierarchical process of galaxy formation results in a single, centrally located dominant giant elliptical surrounded by unmerged dwarf galaxies. The integrated Type II and Ia supernova activity in the 5044 group dwarf galaxies is recorded in the abundances of Fe, Si, and S in the hot intragroup gas which can be measured with novel precision using XMM. The history of galaxy formation and evolution will then be recovered from XMM data using theoretical gas dynamical models. The NGC 5044 group is of special interest since, unlike rich clusters, dwarf galaxies provide most (2-3) of the optical light and hot gas enrichment.|
|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, 2002-03-22T00:00:00Z, 003795, 17.56_20190403_1200. https://doi.org/10.5270/esa-fi76r94|