We propose an XMM-Newton survey of a complete X-ray selected sample of nearbygalaxy groups. The groups have been selected to overlap with the Sloan DigitalSky Survey. The XMM observations will provide a vital comparison sample to X-rayselected group samples being studied at high redshift. We will use the XMMobservations to: 1) Determine the properties of the intragroup medium in arepresentative sample of X-ray groups; 2) Study the evolution of the galaxypopulation in X-ray groups from z=1 to the present; 3) Determine the formationtimescales of brightest group galaxies and 4) Compare the AGN populations inX-ray groups to clusters.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2011-12-27T14:38:37Z/2012-02-27T15:39:57Z
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 John Mulchaey, 2013, 'A Complete X-ray Selected Sample of Galaxy Groups', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-g0a4wyx
