Results 81 to 90 of about 19,051 (197)
Extragalactic magnetic fields unlikely generated at the electroweak phase transition [PDF]
Journal of Cosmology and Astroparticle Physics, 2016 5 pages, 2 figures.
Wagstaff, Jacques M., Banerjee, Robi
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Effects of Forbush Decreases on the Global Electric Circuit
Space Weather, Volume 22, Issue 4, April 2024.Abstract The suppression of high‐energy cosmic rays, known as Forbush decreases (FDs), represents a promising factor in influencing the global electric circuit (GEC) system. Researchers have delved into these effects by examining variations, often disruptive, of the potential gradient (PG) in ground‐based measurements taken in fair weather regions.
J. Tacza, G. Li, J.‐P. Raulin
wiley +1 more source
The Astrophysical Journal LettersWe calculate the arrival direction distribution of ultrahigh-energy cosmic rays (UHECRs) with a new suite of models of the Galactic magnetic field (GMF), assuming sources follow the large-scale structure of the Universe.
Teresa Bister +2 more
doaj +1 more source
The origin of intergalactic magnetic fields due to extragalactic jets [PDF]
Monthly Notices of the Royal Astronomical Society, 1992 The large-scale magnetization of intra- and intercluster media due to electric current-carrying extragalactic jets generated by active periods of galactic nuclei is studied. The Lorentz force acting on the return current path has an expansive character which is responsible for the generation of a growing magnetic cocoon surrounding the associated jet ...
L. C. Jafelice, R. Opher
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The Astrophysical JournalWe present the first results of one extremely high-resolution, nonradiative magnetohydrodynamical cosmological zoom-in simulation of a massive cluster with a virial mass of M _vir = 2.0 × 10 ^15 solar masses. We adopt a mass resolution of 4 × 10 ^5 M _⊙
Ulrich P. Steinwandel +3 more
doaj +1 more source
On the Non-Thermal Energy Content of Cosmic Structures
Galaxies, 2016 (1) Background: the budget of non-thermal energy in galaxy clusters is not well constrained, owing to the observational and theoretical difficulties in studying these diluted plasmas on large scales; (2) Method: we use recent cosmological simulations ...
Franco Vazza +3 more
doaj +1 more source
Exploring the Magnetic Field Geometry in NGC 891 with SOFIA/HAWC+
The Astronomical Journal, 2023 Stratospheric Observatory For Infrared Astronomy/High-resolution Airborne Wideband Camera-plus 154 μ m Far-Infrared polarimetry observations of the well-studied edge-on galaxy NGC 891 are analyzed and compared to simple disk models with ordered (planar ...
Jin-Ah Kim +2 more
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Extragalactic Cosmic Rays and Magnetic Fields: Facts and Fiction
Journal of The Korean Astronomical Society, 2004 to appear in "Cosmic Rays and Magnetic Fields in Large Scale Structure", 8 pages, 3 ...
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The Astrophysical JournalIn this study, we apply the velocity gradient technique to the merging Centaurus galaxy. We compare gradient maps derived from the PHANGS-Atacama Large Millimeter/submillimeter Array survey using CO emission lines with magnetic field tracings from dust ...
Quynh Lan Nguyen, Yue Hu, Alex Lazarian
doaj +1 more source
A Linearly Polarized Merger Shock Down to 550 MHz: A uGMRT Study of the Merging Cluster A746
The Astrophysical JournalRadio relics, arc-like polarized sources with highly aligned magnetic fields, are typically found on the outskirts of merging galaxy clusters. The magnetoionic media responsible for the significant coherence observed in radio relics remain poorly ...
Arpan Pal +2 more
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