X-RAY STUDIES OF THE INTRACLUSTER MEDIUM IN CLUSTERS OF GALAXIES - CHARACTERIZING GALAXY CLUSTERS AS GIANT LABORATORIES [PDF]
Galaxy clusters as the densest and most prominent regions within the large-scale structure can be used as well characterizable laboratories to study astrophysical processes on the largest scales. X-ray observations provide currently the best way to determine the physical properties of galaxy clusters and the environmental parameters that describe them ...
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CHARACTERIZATION OF INTRACLUSTER MEDIUM TEMPERATURE DISTRIBUTIONS OF 62 GALAXY CLUSTERS WITH XMM-NEWTON [PDF]
We measure the intracluster medium (ICM) temperature distributions for 62 galaxy clusters in the HIFLUGCS, an X-ray flux-limited sample, with available X-ray data from XMM-Newton. We search for correlations between the width of the temperature distributions and other cluster properties, including median cluster temperature, luminosity, size, presence ...
K. A. Frank +4 more
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Focusing X‐Ray Optics for Astronomy
Focusing X‐ray telescopes have been the most important factor in X‐ray astronomy’s ascent to equality with optical and radio astronomy. They are the prime tool for studying thermal emission from very high temperature regions, non‐thermal synchrotron radiation from very high energy particles in magnetic fields and inverse Compton scattering of lower ...
Paul Gorenstein, Stephen L. O′Dell
wiley +1 more source
Simulating galaxy clusters - I. Thermal and chemical properties of the intracluster medium [PDF]
We have performed a series of N-body/hydrodynamical (TreeSPH) simulations of clusters and groups of galaxies, selected from cosmological N-body simulations within a $Λ$CDM framework: these objects have been re-simulated at higher resolution to $z$=0, in order to follow also the dynamical, thermal and chemical input on to the ICM from stellar ...
Romeo, A. D. +3 more
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Erratum: Simulating galaxy clusters – I. Thermal and chemical properties of the intracluster medium [PDF]
n ...
Romeo, A. D. +3 more
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Metal distribution in the intracluster medium: a comprehensive numerical study of twelve galaxy clusters [PDF]
We present a simulation setup for studying the dynamical and chemical evolution of the intracluster medium (ICM) and analyze a sample of 12 galaxy clusters that are diverse both kinetically (pre-merger, merging, virialized) and in total mass (M vir = 1.17 × 1014 − 1.06 × 1015 M ⊙ ).
Harald Höller +6 more
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The Relationship Between Brightest Cluster Galaxy Star Formation and the Intracluster Medium in CLASH [PDF]
Abstract We study the nature of feedback mechanisms in the 11 CLASH brightest cluster galaxies (BCGs) that exhibit extended ultraviolet and nebular line emission features. We estimate star formation rates (SFRs), dust masses, and starburst durations using a Bayesian photometry-fitting technique that accounts for both stellar and dust ...
Kevin Fogarty +4 more
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ABSTRACT Well-resolved galaxy clusters often show a large-scale quasi-spiral structure in deprojected density ρ and temperature T fields, delineated by a tangential discontinuity known as a cold front, superimposed on a universal radial entropy profile with a linear K(r) ∝ Tρ−2/3 ∝ r adiabat.
Uri Keshet, Itay Raveh, Arka Ghosh
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Seeking for the Leading Actor on the Cosmic Stage: Galaxies versus Supermassive Black Holes
Advances in Astronomy, Volume 2012, Issue 1, 2012.
Angela Bongiorno +4 more
wiley +1 more source
Off‐Center Mergers of Clusters of Galaxies and Nonequipartition of Electrons and Ions in the Intracluster Medium [PDF]
21 pages, 7 figures.
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