A dataset provided by the European Space Agency

Name 050202
Title Quest for the WHIM in the filament connecting the pair of clusters A222 and A223
URL

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

DOI 10.5270/esa-tlfti24
Author Mr Norbert Werner
Description We propose to observe the pair of rich clusters of galaxies A 222-223 at a redshift of z=0.21, to investigate the physical properties of the warm-hot intergalactic medium (WHIM) bridge, which physically connects both clusters. We will determine its temperature and put constraints on its oxygen abundance and density. As a diagnostic tool we will use the OVII line emission, which is formed at the temperatures expected to occur in filaments between two massive clusters. The high redshift, a relatively high density of the WHIM in the bridge connecting the two clusters and the orientation of the filament approximately along our line of sight make A 222-223 one of the most promising targets to unambiguously detect the WHIM for the first time in emission.
Publication The clusters Abell 222 and Abell 223: a multi-wavelength view . Durret, F., Lagana, T. F., et all. . A&A . 517-94 . 2010 . 2010A&A...517A..94D ,
Detection of hot gas in the filament connecting the clusters of galaxies Abell 222 and Abell 223 . Werner, N., Finoguenov, A., et all. . A&A . 482-29 . 2008 . 2008A&A...482L..29W ,
Detection of X-ray galaxy clusters based on the Kolmogorov method . Gurzadyan, V. G., Durret, F., et all. . EL . 95-69001 . 2011 . 2011EL.....9569001G ,
Exospheric solar wind charge exchange as seen by XMM-Newton . Carter, J. A., Semba, S., . AN . 333-313 . 2012 . 2012AN....333..313C ,
The cosmological analysis of X-ray cluster surveys - II. Application of the CR-HR method to the XMM archive . Clerc, N., Sadibekova, T., et all. . MNRAS . 423-3561 . 2012 . 2012MNRAS.423.3561C ,
Classification of X-Ray Sources in the XMM-Newton Serendipitous Source Catalog . Lin, Dacheng, Webb, Natalie A., . ApJ . 756-27 . 2012 . 2012ApJ...756...27L ,
An XMM-Newton Survey of the Soft X-Ray Background. II. An All-Sky Catalog of Diffuse O VII and O VIII Emission Intensities . Henley, David B., Shelton, Robin L., . ApJS . 202-14 . 2012 . 2012ApJS..202...14H ,
Joint Analysis of Cluster Observations. II. Chandra-XMM-Newton X-Ray and Weak Lensing Scaling Relations for a Sample of 50 Rich Clusters of Galaxies . Mahdavi, Andisheh, Hoekstra, Henk, et all. . ApJ . 767...
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 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 2008-07-07T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2008-07-07T00:00:00Z, 050202, 17.56_20190403_1200. https://doi.org/10.5270/esa-tlfti24