A dataset provided by the European Space Agency

Name 067377
Title CLoGS: The Complete Local-volume Groups Sample
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0673770101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0673770201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0673770301
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0673770401
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0673770501
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0673770601
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0673771001

DOI https://doi.org/10.5270/esa-j2ldi71
Author Dr Ewan O.Sullivan
Description The current lack of a statistical X-ray sample of galaxy groups is a serious hindrance to studies of galaxy evolution, structure formation, and feedback processes. The subset of nearby groups observed in the X-ray contains less than half the number of systems expected and is biased in unknown ways. We have defined an optically selected, statistically complete sample of groups in the local Universe, screened to exclude systems which are uncollapsed or embedded in larger structures. This will allow the first detailed studies of the gas content, thermal history and physical properties of an unbiased sample of groups, and significantly improve our understanding of the mass distribution in the local volume.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2011-05-18T06:29:37Z/2012-07-02T19:41:33Z
Version 17.56_20190403_1200
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.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2013-07-24T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-07-24T00:00:00Z, 067377, 17.56_20190403_1200. https://doi.org/10.5270/esa-j2ldi71