| Proposal ID | 065178 |
| Title | A Complete X-ray Selected Sample of Galaxy Groups |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0651780101 |
| DOI | https://doi.org/10.5270/esa-ubpya9a |
| Principal Investigator, PI | Dr John Mulchaey |
| Abstract | 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) Quantify the incidence of cool coresin groups; 3) Study the evolution of the galaxy population in X-ray groups fromz=1 to the present; 4) Determine the formation timescales of brightest groupgalaxies and 5) Compare the AGN populations in X-ray groups to clusters. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2010-07-08T06:43:55Z/2011-04-23T20:48:10Z |
| Version | 21.51_20241115_1113 |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2012-05-10T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "agn populations", "complete xray", "XMM-Newton", "formation timescales", "cool cores", "intragroup medium", "XMM", "xmm newton survey", "galaxy population", "nearby galaxy", "vital comparison sample" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr John Mulchaey, 2012, 'A Complete X-ray Selected Sample of Galaxy Groups', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-ubpya9a |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |