Results 31 to 40 of about 19,051 (197)
Probing UHECR production in Centaurus A using secondary neutrinos and gamma-rays
European Physical Journal C: Particles and Fields, 2021 In this paper the production of neutrinos and photons by ultra high energy cosmic rays (UHECR) interacting with the extragalactic background radiation is studied.
Cainã de Oliveira, Vitor de Souza
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Inflationary and Phase-transitional Primordial Magnetic Fields in Galaxy Clusters
The 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
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Magnetogenesis in a Collisionless Plasma: From Weibel Instability to Turbulent Dynamo
The Astrophysical Journal, 2023 We report on a first-principles numerical and theoretical study of plasma dynamo in a fully kinetic framework. By applying an external mechanical force to an initially unmagnetized plasma, we develop a self-consistent treatment of the generation of “seed”
Muni Zhou +4 more
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Constraints on the Intergalactic Magnetic Field Using Fermi-LAT and H.E.S.S. Blazar Observations
The Astrophysical Journal Letters, 2023 Magnetic fields in galaxies and galaxy clusters are believed to be the result of the amplification of intergalactic seed fields during the formation of large-scale structures in the universe.
F. Aharonian +137 more
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Measuring magnetism in the Milky Way with the Square Kilometre Array [PDF]
, 2015 Magnetic fields in the Milky Way are present on a wide variety of sizes and strengths, influencing many processes in the Galactic ecosystem such as star formation, gas dynamics, jets, and evolution of supernova remnants or pulsar wind nebulae ...
Akahori, Takuya +19 more
core +2 more sources
EPJ Web of Conferences, 2013 Recently CRPropa 2.0 has been released as a public software package to simulate the extragalactic propagation of ultra-high energy nuclei. It includes deflections by extragalactic magnetic fields and all relevant interactions with ambient photon ...
Nierstenhoefer Nils +6 more
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Fast Radio Bursts as Probes of Magnetic Fields in Galaxies at z < 0.5
The Astrophysical Journal, 2023 We present a sample of nine fast radio bursts (FRBs) from which we derive magnetic field strengths of the host galaxies represented by normal, z < 0.5 star-forming galaxies with stellar masses M _* ≈ 10 ^8 –10 ^10.5 M _⊙ .
Alexandra G. Mannings +8 more
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On irregularities in the cosmic ray spectrum of \(10^{16}-10^{18}\) eV range
SciPost Physics Proceedings, 2023 Existing small, medium and large arrays for the study of cosmic rays of ultra-high energies are aimed for obtaining information about our galaxy and extragalactic space, namely to search and study astronomical objects that produce the flux of ...
Stanislav P. Knurenko, Igor S. Petrov
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Sensitivity of Cross-Correlation Studies by Using Xmax Information
Galaxies, 2022 The investigation about cosmic-ray sources through the study of the arrival direction of the particles is completely dependent on primary mass compositions.
Cynthia V. Ventura +3 more
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CRPropa high statistics simulations for UHECR anisotropy studies [PDF]
EPJ Web of Conferences, 2023 Despite the great progress made by modern cosmic ray observatories, the origin and acceleration mechanism of ultra-high-energy cosmic rays (UHECRs) remains unsolved problems to this day.
Rossoni Simone, Sigl Günter
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