| Proposal ID | 014901 |
| Title | A Survey of Small Galaxy Groups at High redshift |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0149010201 |
| DOI | https://doi.org/10.5270/esa-xcbn36t |
| Principal Investigator, PI | Prof Frederik Paerels |
| Abstract | The combination of the large sensitivity of the XMM cameras and theavailability of the results of the CNOC2 Survey for Galaxy Groups now offers theunique opportunity to conduct a highly sensitive survey for the X-ray propertiesof small Groups at high redshift. With just a single 100ksec exposure, wepropose to acquire data on a few dozen Groups addressing a range of issuesconcerning the physical properties of gas in small Groups. Since a statisticalmass estimate from weak lensing exists for the CNOC2 Groups, we will even beable to address the issue of the gas content as a function of totalgravitational mass. With a single stroke, XMM can extend our knowledge of theevolution of most of the baryonic matter in the Universe out to high redshift. |
| Publications |
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| Instrument | RGS1, EPN, RGS2, EMOS1, OM, EMOS2 |
| Temporal Coverage | 2003-04-15T00:22:26Z/2003-04-16T03:05:04Z |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2004-05-20T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "XMM", "physical properties", "sensitive survey", "gas content", "baryonic matter", "weak lensing exists", "single stroke", "cnoc2 survey", "xray properties", "xmm cameras", "total gravitational mass", "statistical mass" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Frederik Paerels, 2004, 'A Survey of Small Galaxy Groups at High redshift', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-xcbn36t |