|Title||Moderate Redshift X-ray Selected Groups of Galaxies|
|Author||Dr John Mulchaey|
|Description||Recent ROSAT and ASCA observations of nearby groups of galaxies have provided considerable new insight into these cosmologically important systems. We propose to extend these X-ray studies to moderate (z=0.2-0.5) redshifts with an XMM study of a sample of ROSAT-selected systems. Our existing ground-based spectroscopy program combined with upcoming Cycle 8 HST images will provide a good census of the galaxy populations in these groups. XMM imaging will allow us to map out the spatial distribution of the hot gas, while EPIC spectroscopy will provide a measurement of the intragroup gas temperature and metallicity. Therefore, we will make the first mass determinations for these systems and study the evolution of the intragroup medium out to z=0.5|
|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, 2003-06-27T00:00:00Z, 001285, 17.56_20190403_1200. https://doi.org/10.5270/esa-3qq3vo1|