On the Small-scale Turbulent Dynamo in the Intracluster Medium: A Comparison to Dynamo Theory [PDF]
Astrophysical Journal, 2021 We present non-radiative, cosmological zoom-in simulations of galaxy-cluster formation with magnetic fields and (anisotropic) thermal conduction of one massive galaxy cluster with M vir ∼ 2 × 1015 M ⊙ at z ∼ 0.
U. Steinwandel +3 more
semanticscholar +1 more source
Exploring the relation between turbulent velocity and density fluctuations in the stratified intracluster medium [PDF]
Astronomy & Astrophysics, 2021 Context. The dynamics of the intracluster medium (ICM) is affected by turbulence driven by several processes, such as mergers, accretion and feedback from active galactic nuclei. Aims.
M. Simonte +4 more
semanticscholar +1 more source
On the Challenges of Cosmic-Ray Proton Shock Acceleration in the Intracluster Medium [PDF]
New Astronomy, 2021 Galaxy clusters host the largest particle accelerators in the Universe: Shock waves in the intracluster medium (ICM), a hot and ionised plasma, that accelerate particles to high energies.
D. Wittor
semanticscholar +1 more source
Whistler-regulated Magnetohydrodynamics: Transport Equations for Electron Thermal Conduction in the High-β Intracluster Medium of Galaxy Clusters [PDF]
Astrophysical Journal, 2020 Transport equations for electron thermal energy in the high-β e intracluster medium (ICM) are developed that include scattering from both classical collisions and self-generated whistler waves. The calculation employs an expansion of the kinetic electron
J. Drake +8 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
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
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
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
Universal thermodynamic properties of the intracluster medium over two decades in radius in the X-COP sample [PDF]
Astronomy & Astrophysics, 2018 Context. The hot plasma in a galaxy cluster is expected to be heated to high temperatures through shocks and adiabatic compression. The thermodynamical properties of the gas encode information on the processes leading to the thermalization of the gas in ...
V. Ghirardini +12 more
semanticscholar +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