Results 31 to 40 of about 2,319,978 (287)
CHANDRA X-Ray Observations of A119: Cold Fronts and a Shock in an Evolved Off-axis Merger
The Astrophysical Journal, 2023 We present Chandra X-ray observations of the dynamically complex galaxy cluster A119 ( z = 0.044). A119 is host to two narrow-angle-tail (NAT) radio sources (0053-015 and 0053-016), whose tails are oriented parallel to each other, despite orthogonally ...
Courtney B. Watson +6 more
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THE ENRICHMENT OF THE INTRACLUSTER MEDIUM [PDF]
The Astrophysical Journal, 2009 To determine the relative contributions of galactic and intracluster stars to the enrichment of the intracluster medium (ICM), we present X-ray surface brightness, temperature, and Fe abundance profiles for a set of twelve galaxy clusters for which we have extensive optical photometry.
Ann I. Zabludoff +4 more
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Dynamical heating of the X-ray emitting intracluster medium: the roles of merger shocks and turbulence dissipation [PDF]
Monthly notices of the Royal Astronomical Society, 2020 The diffuse plasma inside clusters of galaxies has X-ray emitting temperatures of a few keV. The physical mechanisms that heat this intracluster medium (ICM) to such temperatures include the accretion shock at the periphery of a galaxy cluster, the ...
Xun Shi, D. Nagai, Han Aung, A. Wetzel
semanticscholar +1 more source
The Astrophysical Journal, 2023 The galaxy cluster Zwicky 3146 is a sloshing cool-core cluster at z = 0.291 that in Sunyaev–Zel’dovich (SZ) imaging does not appear to exhibit significant pressure substructure in the intracluster medium.
Charles E. Romero +18 more
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Encounters of merger and accretion shocks in galaxy clusters and their effects on intracluster medium [PDF]
Monthly notices of the Royal Astronomical Society, 2020 Several types/classes of shocks naturally arise during formation and evolution of galaxy clusters. One such class is represented by accretion shocks, associated with deceleration of infalling baryons.
Congyao Zhang +4 more
semanticscholar +1 more source
MINOT: Modeling the intracluster medium (non-)thermal content and observable prediction tools [PDF]
Astronomy & Astrophysics, 2020 In the past decade, the observations of diffuse radio synchrotron emission toward galaxy clusters revealed cosmic-ray (CR) electrons and magnetic fields on megaparsec scales.
R. Adam +9 more
semanticscholar +1 more source
The nature of the motions of multiphase filaments in the centers of galaxy clusters
Frontiers in Astronomy and Space Sciences, 2023 The intracluster medium (ICM) in the centers of galaxy clusters is heavily influenced by the “feedback” from supermassive black holes (SMBHs). Feedback can drive turbulence in the ICM and turbulent dissipation can potentially be an important source of ...
Shalini Ganguly +9 more
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Modified Entropy Models for the Intracluster Medium
The Astrophysical Journal, 2002 Accepted to ApJ (24 pages, 31 figures)
G. Mark Voit +3 more
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Mirror Acceleration of Cosmic Rays in a High-β Medium
The Astrophysical Journal, 2023 In a weakly compressible high- β medium, pitch-angle scattering and the associated scattering acceleration of cosmic rays (CRs) by anisotropic Alfvén and slow modes of magnetohydrodynamic (MHD) turbulence is inefficient.
Alex Lazarian, Siyao Xu
doaj +1 more source
THE INTRAGROUP VERSUS THE INTRACLUSTER MEDIUM [PDF]
The Astrophysical Journal, 2016 ABSTRACT Galaxy groups differ from clusters primarily by way of their lower masses, M ∼ 1014 M ⊙ versus M ∼ 1015 M ⊙. We discuss how mass affects the thermal state of the intracluster or the intragroup medium, specifically as to their entropy levels and radial ...
Cavaliere, A. +2 more
openaire +4 more sources