Cluster scaling and its redshift evolution from XMM-Newton

A Finoguenov; H Bohringer; J Osmond; Trevor Ponman; Alastair Sanderson; Y Zhang; M Zimer

doi:10.1016/j.asr.2005.04.018

Cluster scaling and its redshift evolution from XMM-Newton

A Finoguenov, H Bohringer, J Osmond, Trevor Ponman, Alastair Sanderson, Y Zhang, M Zimer

Physics and Astronomy

Research output: Contribution to journal › Article

7 Citations (Scopus)

Abstract

We put together the results of XMM-Newton observations of a number of representative group and cluster samples at low and high redshifts. These results confirm the entropy ramp as an explanation of the observed scaling relations. We observe a mild evolution in the entropy of clusters. The observed degree Of evolution is consistent with expectations of the shock heating at a fixed overdensity (500) with respect to the critical density in ACDM. The study of the evolution in the pressure scaling imposes strong requirements in the definition of the average temperature of the cluster. The scaling temperature should be consistent to better than the 10% level. Once such a consistency is achieved, no additional evolution in the pressure has been detected in addition to the prediction of the shock heating in the ACDM Universe. (c) 2005 COSPAR. Published by Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	622-625
Number of pages	4
Journal	Advances in Space Research
Volume	36
Issue number	4
DOIs	https://doi.org/10.1016/j.asr.2005.04.018
Publication status	Published - 1 Jan 2005

Keywords

galaxy groups
galaxy clusters
clusters
observational cosmology
X-ray sources
large scale structure of the Universe

Access to Document

10.1016/j.asr.2005.04.018

Cite this

@article{b96a85915e10427d93962f9fdcf07e24,

title = "Cluster scaling and its redshift evolution from XMM-Newton",

abstract = "We put together the results of XMM-Newton observations of a number of representative group and cluster samples at low and high redshifts. These results confirm the entropy ramp as an explanation of the observed scaling relations. We observe a mild evolution in the entropy of clusters. The observed degree Of evolution is consistent with expectations of the shock heating at a fixed overdensity (500) with respect to the critical density in ACDM. The study of the evolution in the pressure scaling imposes strong requirements in the definition of the average temperature of the cluster. The scaling temperature should be consistent to better than the 10% level. Once such a consistency is achieved, no additional evolution in the pressure has been detected in addition to the prediction of the shock heating in the ACDM Universe. (c) 2005 COSPAR. Published by Elsevier Ltd. All rights reserved.",

keywords = "galaxy groups, galaxy clusters, clusters, observational cosmology, X-ray sources, large scale structure of the Universe",

author = "A Finoguenov and H Bohringer and J Osmond and Trevor Ponman and Alastair Sanderson and Y Zhang and M Zimer",

year = "2005",

month = jan,

day = "1",

doi = "10.1016/j.asr.2005.04.018",

language = "English",

volume = "36",

pages = "622--625",

journal = "Advances in Space Research",

publisher = "Elsevier",

number = "4",

}

TY - JOUR

T1 - Cluster scaling and its redshift evolution from XMM-Newton

AU - Finoguenov, A

AU - Bohringer, H

AU - Osmond, J

AU - Ponman, Trevor

AU - Sanderson, Alastair

AU - Zhang, Y

AU - Zimer, M

PY - 2005/1/1

Y1 - 2005/1/1

N2 - We put together the results of XMM-Newton observations of a number of representative group and cluster samples at low and high redshifts. These results confirm the entropy ramp as an explanation of the observed scaling relations. We observe a mild evolution in the entropy of clusters. The observed degree Of evolution is consistent with expectations of the shock heating at a fixed overdensity (500) with respect to the critical density in ACDM. The study of the evolution in the pressure scaling imposes strong requirements in the definition of the average temperature of the cluster. The scaling temperature should be consistent to better than the 10% level. Once such a consistency is achieved, no additional evolution in the pressure has been detected in addition to the prediction of the shock heating in the ACDM Universe. (c) 2005 COSPAR. Published by Elsevier Ltd. All rights reserved.

AB - We put together the results of XMM-Newton observations of a number of representative group and cluster samples at low and high redshifts. These results confirm the entropy ramp as an explanation of the observed scaling relations. We observe a mild evolution in the entropy of clusters. The observed degree Of evolution is consistent with expectations of the shock heating at a fixed overdensity (500) with respect to the critical density in ACDM. The study of the evolution in the pressure scaling imposes strong requirements in the definition of the average temperature of the cluster. The scaling temperature should be consistent to better than the 10% level. Once such a consistency is achieved, no additional evolution in the pressure has been detected in addition to the prediction of the shock heating in the ACDM Universe. (c) 2005 COSPAR. Published by Elsevier Ltd. All rights reserved.

KW - galaxy groups

KW - galaxy clusters

KW - clusters

KW - observational cosmology

KW - X-ray sources

KW - large scale structure of the Universe

U2 - 10.1016/j.asr.2005.04.018

DO - 10.1016/j.asr.2005.04.018

M3 - Article

VL - 36

SP - 622

EP - 625

JO - Advances in Space Research

JF - Advances in Space Research

IS - 4

ER -

Cluster scaling and its redshift evolution from XMM-Newton

Abstract

Keywords

Access to Document

Fingerprint

Cite this