A dataset provided by the European Space Agency

Proposal ID 050202
Title Quest for the WHIM in the filament connecting the pair of clusters A222 and A223
Download Data Associated to the proposal

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0502020101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0502020201

DOI https://doi.org/10.5270/esa-tlfti24
Principal Investigator, PI Mr Norbert Werner
Abstract We propose to observe the pair of rich clusters of galaxies A 222/223 at aredshift of z=0.21, to investigate the physical properties of the warm-hotintergalactic medium (WHIM) bridge, which physically connects both clusters. Wewill determine its temperature and put constraints on its oxygen abundance anddensity. As a diagnostic tool we will use the OVII line emission, which isformed at the temperatures expected to occur in filaments between two massiveclusters. The high redshift, a relatively high density of the WHIM in the bridgeconnecting the two clusters and the orientation of the filament approximatelyalong our line of sight make A 222/223 one of the most promising targets tounambiguously detect the WHIM for the first time in emission.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2007-06-18T08:03:12Z/2007-06-23T04:27:50Z
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 2008-07-07T00:00:00Z
Keywords "oxygen abundance", "filament connecting", "promising targets", "massive clusters", "diagnostic tool", "rich cluster", "cluster a222", "filament approximately", "physical properties", "physically connects", "bridge connecting", "ovii line emission"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Mr Norbert Werner, 2008, 'Quest for the WHIM in the filament connecting the pair of clusters A222 and A223', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-tlfti24