Results 11 to 20 of about 1,204 (229)
Influence of Extragalactic Magnetic Fields on Extragalactic Cascade Gamma-Ray Emission [PDF]
Universe, 2022 We discuss the influence of extragalactic magnetic fields on the intensity of gamma-ray emission produced in electromagnetic cascades from ultra-high energy cosmic rays propagating in extragalactic space.
Anna Uryson
doaj +7 more sources
The redshift evolution of extragalactic magnetic fields [PDF]
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACTFaraday rotation studies of distant radio sources can constrain the evolution and the origin of cosmic magnetism. We use data from the LOFAR Two-Metre Sky Survey: Data Release 2 (LoTSS DR2) to study the dependence of the Faraday rotation measure (RM) on redshift.
V P Pomakov +2 more
exaly +9 more sources
Origin of galactic and extragalactic magnetic fields [PDF]
Reviews of Modern Physics, 2002 67 pages, 17 figures, accepted for publication in Reviews of Modern ...
Lawrence M Widrow
exaly +5 more sources
Proton Acceleration with Relativistic Electromagnetic Shock. [PDF]
Adv Sci (Weinh)New Ion Acceleration Mechanism! A novel cosmic‐ray proton acceleration mechanism is proposed, where relativistic electromagnetic shocks accelerate protons transversely. Hamiltonian analysis yields a scaling law linking the proton energy to the minimum longitudinal thickness of the shock.
Xiao T +5 more
europepmc +2 more sources
UHECR anisotropy and extragalactic magnetic fields with the Telescope Array [PDF]
EPJ Web of Conferences, 2023 We study the energy-dependent distribution of ultra-high energy cosmic ray arrival directions with respect to luminous matter in the local Universe. We use a specially designed test statistic (TS) that is robust to uncertainties of the galactic magnetic ...
Kuznetsov Mikhail, Tinyakov Peter
doaj +2 more sources
Magnetic fields and UHECR propagation [PDF]
EPJ 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
Very Light Extragalactic Jets with Magnetic Fields [PDF]
, 2008 We explore the global structure and evolution of powerful radio sources located in clusters of galaxies and their interaction with the ambient gas, in particular with respect to the effects of magnetic fields. Recent observations of inverse-Compton emission from their cocoons at X-ray energies indicate that magnetic fields are present on a considerable
Volker Gaibler
core +3 more sources
Ultra-High Energy Heavy Nuclei Propagation in Extragalactic Magnetic Fields
Physical Review D, 2002 We extend existing work on the propagation of ultra-high energy cosmic rays in extragalactic magnetic fields to a possible component of heavy nuclei, taking into account photodisintegration, pion production, and creation of e+e- pairs. We focus on the influence of the magnetic field on the spectrum and chemical composition of observed ultra-high energy
Gianfranco Bertone +3 more
core +5 more sources
The Astrophysical JournalThe detection of high-energy astrophysical multimessengers establishes a connection between ultra-high-energy cosmic rays (UHECRs) and powerful cosmic accelerators.
Rodrigo Sasse +4 more
doaj +2 more sources
Extragalactic Magnetism with SOFIA (SALSA Legacy Program). V. First Results on the Magnetic Field Orientation of Galaxies [PDF]
The Astrophysical Journal, 2023 We present the analysis of the magnetic field ( B -field) structure of galaxies measured with far-infrared (FIR) and radio (3 and 6 cm) polarimetric observations.
Alejandro S. Borlaff +15 more
doaj +2 more sources