We propose X-ray observations of three X-ray bright ..fossil groups. centeredon the dominant galaxies NGC4936, IC1633 and NGC6269. With XMM-Newton, we canderive accurate gas density, temperature, abundance, pressure, and entropydistributions to test mass distribution predictions from numerical simulations,investigate the interaction of radio lobes with the cooling gas in the centralgalaxies, determine the past star formation history, inventory the stellarcomponent through abundance determinations, test formation theories of fossilgroups to determine their relationship to more typical groups and clusters, andfinally, test models of thermal conduction which may explain the absence of coolgas in ..cooling flows..
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2004-08-05T06:45:51Z/2004-11-23T18:36:13Z
Version
17.56_20190403_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.
European Space Agency, Dr WILLIAM FORMAN, 2005, 'TESTING FORMATION MODELS AND HEATING AND FEEDBACK MECHANISMS WITH FOSSIL GROUPS', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-9ltta2n
