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Related papers: The evolution of cool-core clusters

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We investigate the detection of Cool Cores (CCs) in the distant galaxy cluster population, with the purpose of measuring the CC fraction out to redshift 0.7 < z < 1.4. Using a sample of nearby clusters spanning a wide range of morphologies,…

We present the results of a Chandra X-ray survey of the 8 most massive galaxy clusters at z>1.2 in the South Pole Telescope 2500 deg^2 survey. We combine this sample with previously-published Chandra observations of 49 massive…

In this contribution we trace the evolution of cool-core clusters out to z~1.3 using high-resolution Chandra data of three representative cluster samples spanning different redshift ranges. Our analysis is based on the measurement of the…

Cosmology and Nongalactic Astrophysics · Physics 2010-12-07 Joana S. Santos , Paolo Tozzi , Piero Rosati

We present the results of a joint analysis of $Chandra$ X-ray and South Pole Telescope (SPT) SZ observations targeting the first sample of galaxy clusters at $0.3 < z < 1.3$, selected to be the progenitors of well-studied nearby clusters…

Cosmology and Nongalactic Astrophysics · Physics 2021-09-29 F. Ruppin , M. McDonald , L. E. Bleem , S. W. Allen , B. A. Benson , M. Calzadilla , G. Khullar , B. Floyd

We report the results of a study which assembles deep observations with the ACIS-I instrument on the Chandra Observatory to study the evolution in the core properties of a sample of galaxy groups and clusters out to redshifts $z\approx…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-23 Aurelia Pascut , Trevor J. Ponman

A sample consisting of 27 X-ray selected galaxy clusters from the XMM-LSS survey is used to study the evolution in the X-ray surface brightness profiles of the hot intracluster plasma. These systems are mostly groups and poor clusters, with…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Abdulmonem Alshino , Trevor Ponman , Florian Pacaud , Marguerite Pierre

We present results from a study of the X-ray cluster population that forms within the CLEF cosmological hydrodynamics simulation, a large N-body/SPH simulation of the Lambda CDM cosmology with radiative cooling, star formation and feedback.…

We present first results on the cooling properties derived from Chandra X-ray observations of 83 high-redshift (0.3 < z < 1.2) massive galaxy clusters selected by their Sunyaev-Zel'dovich signature in the South Pole Telescope data. We…

We present a Chandra study of 38 X-ray luminous clusters of galaxies in the ROSAT Brightest Cluster Sample (BCS) that lie at z~0.15-0.4. We find that the majority of clusters at moderate redshift generally have smooth, relaxed morphologies…

Astrophysics · Physics 2009-09-17 F. E. Bauer , A. C. Fabian , J. S. Sanders , S. W. Allen , R. M. Johnstone

We search for the presence of cool cores in optically-selected galaxy clusters from the Dark Energy Survey (DES) and investigate their prevalence as a function of redshift and cluster richness. Clusters were selected from the redMaPPer…

To better constrain models of cool core galaxy cluster formation, we have used X-ray observations taken from the Chandra and ROSAT archives to examine the properties of cool core and non-cool core clusters, especially beyond the cluster…

Cosmology and Nongalactic Astrophysics · Physics 2010-01-15 Jason W. Henning , Brennan Gantner , Jack O. Burns , Eric J. Hallman

We derive and compare the fractions of cool-core clusters in the {\em Planck} Early Sunyaev-Zel'dovich sample of 164 clusters with $z \leq 0.35$ and in a flux-limited X-ray sample of 100 clusters with $z \leq 0.30$, using {\em Chandra}…

The process by which the mass density profile of certain galaxy clusters becomes centrally concentrated enough to produce high strong lensing (SL) cross-sections is not well understood. It has been suggested that the baryonic condensation…

Cosmology and Nongalactic Astrophysics · Physics 2013-07-11 Peter K. Blanchard , Matthew B. Bayliss , Michael McDonald , Hakon Dahle , Michael D. Gladders , Keren Sharon , Richard Mushotzky

We analyze the physical properties of the gaseous intracluster medium (ICM) at the center of massive galaxy clusters with TNG-Cluster, a new cosmological magnetohydrodynamical simulation. Our sample contains 352 simulated clusters spanning…

Astrophysics of Galaxies · Physics 2024-07-03 Katrin Lehle , Dylan Nelson , Annalisa Pillepich , Nhut Truong , Eric Rohr

Using the deepest (370 ksec) Chandra observation of a high-redshift galaxy cluster, we perform a detailed characterization of the intra-cluster medium (ICM) of WARPJ1415.1+3612 at z=1.03. We also explore the connection between the ICM core…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Joana S. Santos , Paolo Tozzi , Piero Rosati , Mario Nonino , Gabriele Giovannini

We study the evolution of the ICM with a sample of 70 galaxy clusters spanning 0.18 < z < 1.24. We find that X-ray luminosity and ICM mass at a fixed temperature evolve with redshift in a manner inconsistent with the standard self-similar…

Astrophysics · Physics 2007-11-01 T. B. O'Hara , J. J. Mohr , A. J. R. Sanderson

We use Chandra X-ray data to measure the metallicity of the intracluster medium (ICM) in 245 massive galaxy clusters selected from X-ray and Sunyaev-Zel'dovich (SZ) effect surveys, spanning redshifts $0<z<1.2$. Metallicities were measured…

Cosmology and Nongalactic Astrophysics · Physics 2017-11-17 Adam B. Mantz , Steven W. Allen , R. Glenn Morris , Aurora Simionescu , Ondrej Urban , Norbert Werner , Irina Zhuravleva

Results of ASCA X-ray study of central regions of medium-richness clusters of galaxies are summarized, emphasizing differences between cD and non-cD clusters. The intra-cluster medium (ICM) is likely to consist of two (hot and cool) phases…

We use the largest complete sample of 64 galaxy clusters (HIghest X-ray FLUx Galaxy Cluster Sample) with available high-quality X-ray data from Chandra, and apply 16 cool-core diagnostics to them, some of them new. We also correlate optical…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Daniel S. Hudson , Rupal Mittal , Thomas H. Reiprich , Paul E. J. Nulsen , Heinz Andernach , Craig L. Sarazin

Using a set of ROSAT HRI deep pointings, we investigate the presence of small-scale structures in the central regions of clusters of galaxies. Our sample comprises 23 objects up to z=0.32, 13 of them known to host a cooling flow. Structures…

Astrophysics · Physics 2007-05-23 Marguerite Pierre , Jean-Luc Starck
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