Results 1 to 10 of about 3,496,469 (217)

Synchrotron intensity gradient revealing magnetic fields in galaxy clusters [PDF]

open access: yesNature Communications
Magnetic fields and their dynamical interplay with matter in galaxy clusters contribute to the physical properties and evolution of the intracluster medium.
Yue Hu   +5 more
doaj   +3 more sources

Inflationary and Phase-transitional Primordial Magnetic Fields in Galaxy Clusters [PDF]

open access: yesThe Astrophysical Journal, 2023
Primordial magnetic fields (PMFs) are possible candidates for explaining the observed magnetic fields in galaxy clusters. Two competing scenarios of primordial magnetogenesis have been discussed in the literature: inflationary and phase-transitional.
Salome Mtchedlidze   +6 more
doaj   +2 more sources

Cosmic-Ray Acceleration and Magnetic Fields in Galaxy Clusters and Beyond: Insights from Radio Observations

open access: yesUniverse, 2023
The discovery of diffuse radio emission in galaxy clusters proved the existence of energetic cosmic-ray electrons and cosmic magnetic fields on Mpc-scales in the Universe.
Denis Wittor
doaj   +2 more sources

Magnetic fields and UHECR propagation [PDF]

open access: yesEPJ Web of Conferences, 2023
I review the main observational tools used to detect and measure magnetic fields in the interstellar medium of our Galaxy (considering both the Galactic disk and the Galactic halo), in the interstellar medium of external galaxies, and in the ...
Ferrière Katia
doaj   +2 more sources

Influence of Magnetic Fields on the Gas Rotation in the Galaxy NGC 6946

open access: yesThe Astrophysical Journal, 2023
Magnetic fields can play an important role in the energy balance and formation of gas structures in galaxies. However, their dynamical effect on the rotation curve of galaxies is immensely unexplored.
M. Khademi, S. Nasiri, F. S. Tabatabaei
doaj   +1 more source

On the impact of magnetic-field models in galaxy clusters on constraints on axion-like particles from the lack of irregularities in high-energy spectra of astrophysical sources

open access: yesPhysics Letters B, 2020
Photons may convert to axion-like particles (ALPs) in external magnetic fields. Under certain conditions, this effect should result in irregular features in observed spectra of astrophysical sources.
Maxim Libanov, Sergey Troitsky
doaj   +1 more source

Plasmoid Instability in the Multiphase Interstellar Medium

open access: yesThe Astrophysical Journal Letters, 2023
The processes controlling the complex clump structure, phase distribution, and magnetic field geometry that develop across a broad range of scales in the turbulent interstellar medium (ISM) remain unclear.
Drummond B. Fielding   +2 more
doaj   +1 more source

Magnetic Helicity Fluxes from Triple Correlators

open access: yesThe Astrophysical Journal, 2023
Fluxes of the magnetic helicity density play an important role in large-scale turbulent dynamos, allowing the growth of large-scale magnetic fields while overcoming catastrophic quenching.
Kishore Gopalakrishnan   +1 more
doaj   +1 more source

Event Rate of Fast Radio Bursts from Binary Neutron Star Mergers

open access: yesThe Astrophysical Journal, 2023
It is proposed that a one-off fast radio burst (FRB) with periodic structure may be produced during the inspiral phase of a binary neutron star (BNS) merger. In this paper, we study the event rate of such kind of FRB.
Zhi-Lin Chen   +3 more
doaj   +1 more source

The Strength of the Sheared Magnetic Field in the Galactic’s Circumnuclear Disk

open access: yesThe Astronomical Journal, 2023
Recent high-resolution 53 μ m polarimetric observations from SOFIA/HAWC+ have revealed the inferred plane-of-the-sky magnetic field ( B -field) orientation in the Galactic center’s circumnuclear disk (CND).
Jordan A. Guerra   +4 more
doaj   +1 more source

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