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Related papers: Cluster X-ray luminosity-temperature relation at z…

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A detailed analysis of XMM observations of ClJ0046.3+8530 (z=0.624) is presented. The cluster has a moderate temperature (kT=4.1+/-0.3keV) and appears to be relaxed. Emission is detected at >3 sigma significance to a radius of 88% of R200…

Astrophysics · Physics 2009-11-10 B. J. Maughan , L. R. Jones , D. Lumb , H. Ebeling , P. Gondoin

Evidence for non-thermal activity in clusters of galaxies is well established from radio observations of synchrotron emission by relativistic electrons. New windows in the Extreme Ultraviolet and Hard X-ray ranges have provided for more…

Astrophysics · Physics 2008-11-26 Vahe' Petrosian , Greg Madejski , Kevin Luli

Combining conservation of energy throughout nearly-spherical collapse of galaxy clusters with the virial theorem, we derive the mass-temperature relation for X-ray clusters of galaxies $T=CM^{2/3}$. The normalization factor $C$ and the…

Astrophysics · Physics 2009-08-29 Niayesh Afshordi , Renyue Cen

Our current knowledge of the thermodynamic properties of galaxy clusters comes primarily from detailed studies of clusters selected by their minority components: hot baryons. Most of these studies select the clusters using the component…

Cosmology and Nongalactic Astrophysics · Physics 2025-01-15 S. Andreon , M. Radovich , A. Moretti , F. -X. Desert , T. Hamana , M. Pizzardo , C. Romero , H. Roussel , G. Trinchieri

A recent paper (Burke, Collins & Mann 2000) presents the analysis of the K-band Hubble diagram of 76 brightest cluster galaxies (BCGs) in X-ray clusters and shows that the properties of BCGs depend on the X-ray luminosity (Lx) of their host…

Astrophysics · Physics 2009-11-07 Sarah Brough , Chris Collins , Doug Burke , Bob Mann , Paul Lynam

[ABRIDGED] We present the first results from the largest spectroscopic survey to date of an intermediate redshift galaxy cluster, the z=0.834 cluster RX J0152.7-1357. We use the colors of galaxies, assembled from a D~12 Mpc region centered…

(Abridged) To define a framework for the formation and evolution of the cooling cores in X-ray galaxy clusters, we study how the physical properties change as function of the cosmic time in the inner regions of a 4 keV and 8 keV galaxy…

Astrophysics · Physics 2009-11-13 Stefano Ettori , Fabrizio Brighenti

We present a weak-lensing analysis of the z=1.4 galaxy cluster XMMU J2235.3-2557, based on deep Advanced Camera for Surveys images. Despite the observational challenge set by the high redshift of the lens, we detect a substantial lensing…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 M. J. Jee , P. Rosati , H. C. Ford , K. S. Dawson , C. Lidman , S. Perlmutter , R. Demarco , V. Strazzullo , C. Mullis , H. Böhringer , R. Fassbender

We present X-ray and optical spectroscopic observations of twelve galaxy groups and clusters identified within the XMM Large-Scale Structure (LSS) survey. Groups and clusters are selected as extended X-ray sources from a 3.5 deg2 XMM image…

Measurements of galaxy clustering are now becoming possible over a range of redshifts out to z=3. We use a semi-analytic model of galaxy formation to compute the expected evolution of the galaxy correlation function with redshift. We…

Astrophysics · Physics 2009-10-31 C. M. Baugh , A. J. Benson , S. Cole , C. S. Frenk , C. G. Lacey

Using galaxy clusters from the ESO Distant Cluster Survey, we study how the distribution of galaxies along the colour-magnitude relation has evolved since z~0.8. While red-sequence galaxies in all these clusters are well described by an…

Galaxy clusters are widely used to constrain cosmological parameters through their properties, such as masses, luminosity and temperature distributions. One should take into account all kind of biases that could affect these analyses in…

Cosmology and Nongalactic Astrophysics · Physics 2020-10-28 Maria Manolopoulou , Ben Hoyle , Robert G. Mann , Martin Sahlen , Seshadri Nadathur

We show that, observationally, the projected local density distribution in high-z clusters is shifted towards higher values compared to clusters at lower redshift. To search for the origin of this evolution, we analyze a sample of haloes…

Context: Multi-wavelength surveys for clusters of galaxies are opening a window on the elusive high-redshift (z>1) cluster population. Well controlled statistical samples of distant clusters will enable us to answer questions about their…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 R. Šuhada , R. Fassbender , A. Nastasi , H. Böhringer , A. de Hoon , D. Pierini , J. S. Santos , P. Rosati , M. Mühlegger , H. Quintana , A. D. Schwope , G. Lamer , J. Kohnert , G. W. Pratt

The evolution of the X-ray luminosity function of clusters of galaxies has been measured to z=0.85 using over 150 X-ray selected clusters found in the WARPS survey. We find no evidence for evolution of the luminosity function at any…

Astrophysics · Physics 2007-05-23 L. R. Jones , H. Ebeling , C. Scharf , E. Perlman , D. Horner , B. Fairley , G. Wegner , M. Malkan

We have used the Advanced Camera for Surveys (ACS) on the HST to obtain optical imaging of a sample of 8 galaxy clusters in the redshift range 0.8 < z < 1.3. The ACS data provides accurate photometry and the ACS high angular resolution…

X-ray observations of three clusters are presented: RXJ1347.5-1145, Cl0939+47, and Cl0500-24. Although these clusters are the in same redshift range (0.32 - 0.45) and act all as gravitational lenses, they show very different properties.…

Astrophysics · Physics 2007-05-23 Sabine Schindler

We report the discovery of a compact supercluster structure at z=0.9. The structure comprises three optically-selected clusters, all of which are detected in X-rays and spectroscopically confirmed to lie at the same redshift. The Chandra…

We present a comprehensive space-based study of ten X-ray luminous galaxy clusters (L_X>=8e44erg/s[0.1-2.4keV]) at z=0.2. Hubble Space Telescope observations reveal numerous gravitationally-lensed arcs for which we present four new…

We combine imaging data from the Advanced Camera for Surveys (ACS) with VLT/FORS optical spectroscopy to study the properties of star-forming galaxies in the z=0.837 cluster CL0152-1357. We have morphological information for 24 star-forming…

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