A dataset provided by the European Space Agency

Proposal ID 040441
Title XMM observation of merging cluster of galaxies Abell 168
Download Data Associated to the proposal

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0404410101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0404410201

DOI https://doi.org/10.5270/esa-5vf3skp
Principal Investigator, PI Mr Karl Andersson
Abstract We propose two 45 ksec observations of A168 (z=0.047), a two-component clusterin a merger state in the plane of the sky. The cluster is characterized, as seenby Chandra, by an apparent cold front in the direction of motion in front of onesubcluster center. This is contrary to other mergers (e.g. RXJ0658-55) where thecold fronts trail behind the subclusters. It is necessary to produce highlyresolved temperature maps in order to categorize these clusters and tounderstand their formation and infer the history of heating the intra-clustergas. This is not possible with the existing Chandra data due to limited photonstatistics. The analysis of the XMM data will allow for a detailed study of theproperties of the cold tongue of gas which may solve the riddle of mergers.
Publications
Instrument EMOS1, EMOS2, EPN, RGS1, RGS2
Temporal Coverage 2006-12-20T19:49:09Z/2006-12-25T11:13:40Z
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 2008-01-21T00:00:00Z
Keywords "Abell 168", "XMM", "intra cluster gas", "a168 z", "merging cluster", "xmm data", "galaxy abell 168", "apparent cold front", "resolved temperature maps", "existing chandra data", "subcluster center", "component cluster", "limited photon statistics", "cold fronts trail"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Mr Karl Andersson, 2008, 'XMM observation of merging cluster of galaxies Abell 168', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-5vf3skp