Results 91 to 100 of about 3,496,469 (217)

Statistics of Gas Density, Velocity, and Magnetic Fields in Cool-core Galaxy Clusters

open access: yesThe Astrophysical Journal
Understanding turbulence within the intracluster medium of galaxy clusters is pivotal for comprehending their evolution and dynamics. Employing 3D magnetohydrodynamic simulations of galaxy cluster mergers, we examine the statistical properties of gas ...
Yue Hu   +3 more
doaj   +1 more source

Electrons magnetic fields and background radio emission in the galaxy

open access: yes, 1968
Extensive data now available on the non-thermal background radio emission from different celestial directions, and recent measurements on the energy spectrum of cosmic ray electrons in the vicinity of the earth permit one to deduce information on the ...
Stephens, S. A.   +2 more
core   +1 more source

Magnetic fields in and around galaxies [PDF]

open access: yes, 2019
Magnetic fields are an ubiquitous component of our Universe. They are expected to play an important role in the evolution of many astrophysical systems, from molecular clouds to galaxy clusters.

core   +1 more source

The Role of Magnetic Fields in AGN Activity and Feedback

open access: yes, 2018
Active galactic nuclei (AGNs), the luminous, compact core regions of galaxies where accretion occurs onto supermassive black holes, can dramatically influence their entire host galaxy evolution by a process referred to as AGN feedback. Energy feedback to
Keppens, R.   +4 more
core  

Galactic magnetic fields and hierarchical galaxy formation

open access: yes
A framework is introduced for coupling the evolution of galactic magnetic fields sustained by the mean-field dynamo with the formation and evolution of galaxies in cold dark matter cosmology.
Shukurov A   +3 more
core   +1 more source

Bridging Scales: Modeling Suppressed Bondi Accretion on Black Holes and Its Impact on Galaxy Growth

open access: yesThe Astrophysical Journal
The accretion and feedback processes governing supermassive black hole (SMBH) growth span an enormous range of spatial scales, from the Event Horizon to the circumgalactic medium.
Antonio J. Porras-Valverde   +6 more
doaj   +1 more source

MAGNETIC FIELDS IN THE GALAXY [PDF]

open access: yes, 2008
The object of this dissertation is to provide an observational study of the effects of interstellar magnetic fields on star-formation regions. This is part of a long-standing research project that uses the techniques of radio astronomy to measure ...
Mayo, Elizabeth Ann
core  

The XMAGNET Exascale MHD Simulations of SMBH Feedback in Galaxy Groups and Clusters: Overview and Preliminary Cluster Results

open access: yesThe Astrophysical Journal
We present initial results from extremely well-resolved 3D magnetohydrodynamical simulations of idealized galaxy clusters, conducted using the AthenaPK code on the Frontier exascale supercomputer.
Philipp Grete   +7 more
doaj   +1 more source

Magnetic Fields in Clusters of Galaxies [PDF]

open access: yes, 2003
The existence of magnetic fields associated with the intracluster medium in clusters of galaxies is now well established through different methods of analysis. Magnetic fields are investigated in the radio band from studies of the rotation measure of polarized radio galaxies and the synchrotron emission of cluster-wide diffuse sources. Other techniques
Federica Govoni   +4 more
openaire   +1 more source

Revealing the Magnetization of the Intracluster Medium of A3581 Using Background Faraday Rotation Measures from the POSSUM Survey

open access: yesThe Astrophysical Journal
The line-of-sight magnetic field of galaxy clusters can be probed using Faraday rotation measure (RM) data. However, our understanding of cluster magnetism is limited due to the scarcity of polarized background radio sources, with most previous studies ...
Affan Khadir   +17 more
doaj   +1 more source

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