Results 1 to 10 of about 16,734 (157)
Turbulence decay in the density-stratified intracluster medium
Monthly Notices of the Royal Astronomical Society, 2019 Turbulence evolution in a density-stratified medium differs from that of homogeneous isotropic turbulence described by the Kolmogorov picture. We evaluate the degree of this effect in the intracluster medium (ICM) with hydrodynamical simulations. We find
Xun Shi, Congyao Zhang
exaly +3 more sources
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
doaj +1 more source
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
doaj +1 more source
A Heating Mechanism via Magnetic Pumping in the Intracluster Medium
The Astrophysical Journal, 2023 Turbulence driven by active galactic nuclei activity, cluster mergers, and galaxy motion constitutes an attractive energy source for heating the intracluster medium (ICM).
Francisco Ley +5 more
doaj +1 more source
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
Electron Reacceleration via Ion Cyclotron Waves in the Intracluster Medium
The Astrophysical Journal, 2023 In galaxy clusters, the intracluster medium (ICM) is expected to host a diffuse, long-lived, and invisible population of “fossil” cosmic-ray electrons (CRe) with 1–100 MeV energies.
Aaron Tran +4 more
doaj +1 more source
Modelling the Energy Spectra of Radio Relics
Galaxies, 2021 Radio relics are diffuse synchrotron sources that illuminate shock waves in the intracluster medium. In recent years, radio telescopes have provided detailed observations about relics.
Denis Wittor +2 more
doaj +1 more source
Calcium-rich Gap Transients: Solving the Calcium Conundrum in the Intracluster Medium [PDF]
, 2014 X-ray measurements suggest the abundance of Calcium in the intracluster medium is higher than can be explained using favored models for core-collapse and Type Ia supernovae alone.
Kasliwal, Mansi M. +2 more
core +2 more sources
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
doaj +1 more source
Broad Band Optical Polarimetric Study of IC 1805 [PDF]
, 2007 We present the BVR broad band polarimetric observations of 51 stars belonging to the young open cluster IC 1805. Along with the photometric data from the literature we have modeled and subtracted the foreground dust contribution from the maximum ...
G., Maheswar +5 more
core +2 more sources