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Arithmetic with X-ray images of galaxy clusters: effective equation of state for small-scale perturbations in the ICM

Abstract:

We discuss a novel technique of manipulating X-ray images of galaxy clusters to reveal the nature of small-scale density/temperature perturbations in the intracluster medium (ICM). As we show, this technique can be used to differentiate between sound waves and isobaric perturbations in Chandra images of the Perseus and M87/Virgo clusters. The comparison of the manipulated images with the radio data and with the results of detailed spectral analysis shows that this approach successfully classi...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1093/mnras/stw2044

Authors


Churazov, E More by this author
Arevalo, P More by this author
More by this author
Institution:
University of Oxford
Department:
Physics; Theoretical Physics
Oxford college:
Merton College
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Russian Scientific Foundation More from this funder
National Aeronautics and Space Administration More from this funder
Smithsonian Institution More from this funder
Chilean National Fund for Scientific and Technological Development More from this funder
Publisher:
Oxford University Press Publisher's website
Journal:
Monthly Notices of the Royal Astronomical Society Journal website
Volume:
463
Issue:
1
Pages:
1057-1067
Publication date:
2016-08-05
Acceptance date:
2016-08-11
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
Pubs id:
pubs:720197
URN:
uri:f4a422c6-51a7-4c98-9610-c8c392e9b4f6
UUID:
uuid:f4a422c6-51a7-4c98-9610-c8c392e9b4f6
Local pid:
pubs:720197

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