A dataset provided by the European Space Agency

Proposal ID 020634
Title BARYON BUDGET IN 2 KEV GALAXY GROUPS
Download Data Associated to the proposal

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0206340101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0206340201

DOI https://doi.org/10.5270/esa-r65uut2
Principal Investigator, PI Dr ALLAN HORNSTRUP
Abstract We propose XMM EPIC observations of 3 typical X-ray selected galaxy groups. Ourobjects are both bright and sufficiently distant (z=0.10-0.13) so that they eachcan be detected to their virial radius in a single pointing. The XMMobservations will provide accurate mass profiles to r_500. In combination withthe already obtained optical observations, we will be able to establish thebaryon budget in T = 2 keV groups, accurately calibrating the M-T relation atgroup scale, and quantifying any trends in the baryon fraction from richclusters to groups. These data will have important implications for the thermalhistory of the intergalactic medium and cluster-based cosmological tests,complementing ongoing cluster surveys focusing on rich clusters.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2004-04-23T21:02:33Z/2004-10-27T14:00:45Z
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 2005-12-03T00:00:00Z
Keywords "intergalactic medium", "xmm epic", "distant z", "cluster surveys focusing", "XMM", "mass profiles", "rich cluster", "cosmological tests", "baryon budget", "baryon fraction", "virial radius", "kev galaxy", "EPIC", "thermal history", "typical xray", "rich clusters"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr ALLAN HORNSTRUP, 2005, 'BARYON BUDGET IN 2 KEV GALAXY GROUPS', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-r65uut2