Cosmic Rays in Galactic and Extragalactic Magnetic Fields [PDF]
Space Science Reviews, 2011 We briefly review sources of cosmic rays, their composition and spectra as well as their propagation in the galactic and extragalactic magnetic fields, both regular and fluctuating. A special attention is paid to the recent results of the X-ray and gamma-
Andrei Bykov +2 more
exaly +4 more sources
Stochastic conversions of TeV photons into axion-like particles in extragalactic magnetic fields [PDF]
Journal of Cosmology and Astroparticle Physics, 2009 Very-high energy photons emitted by distant cosmic sources are absorbed on the extragalactic background light (EBL) during their propagation. This effect can be characterized in terms of a photon transfer function at Earth.
Daniele Montanino
exaly +3 more sources
LOWER LIMIT ON THE STRENGTH AND FILLING FACTOR OF EXTRAGALACTIC MAGNETIC FIELDS [PDF]
Astrophysical Journal Letters, 2011 High energy photons from blazars can initiate electromagnetic pair cascades interacting with the extragalactic photon background. The charged component of such cascades is deflected and delayed by extragalactic magnetic fields (EGMF), reducing thereby ...
K. Dolag +3 more
exaly +3 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
Propagation of ultrahigh energy cosmic rays in extragalactic magnetic fields: a view from cosmological simulations [PDF]
, 2016 We use the CRPropa code to simulate the propagation of ultra high energy cosmic rays (with energy $\geq 10^{18} \rm eV$ and pure proton composition) through extragalactic magnetic fields that have been simulated with the cosmological ENZO code.We test ...
Stefan Hackstein +4 more
semanticscholar +2 more sources
A NEW MODEL FOR GAMMA-RAY CASCADES IN EXTRAGALACTIC MAGNETIC FIELDS [PDF]
Astrophysical Journal Letters, 2011 Very high energy (VHE, E ≳ 100 GeV) gamma rays emitted by extragalactic sources, such as blazars, initiate electromagnetic cascades in the intergalactic medium.
T Arlen, S P Wakely
exaly +2 more sources
Ultrahigh-energy heavy nuclei propagation in extragalactic magnetic fields [PDF]
, 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.
G. Bertone +3 more
semanticscholar +2 more sources
Revisiting the distance to the nearest ultrahigh energy cosmic ray source: Effects of extragalactic magnetic fields [PDF]
Physical Review D, 2020 We update the constraints on the location of the nearest UHECR source. By analyzing recent data from the Pierre Auger Observatory using state-of-the-art CR propagation models, we reaffirm the need of local sources with a distance less than 25-100 Mpc ...
R. Lang +3 more
semanticscholar +1 more source
Extragalactic Magnetism with SOFIA (SALSA Legacy Program): The Magnetic Fields in the Multiphase Interstellar Medium of the Antennae Galaxies [PDF]
Astrophysical Journal Letters, 2022 Mergers are thought to be a fundamental channel for galaxy growth, perturbing the gas dynamics and the magnetic fields (B-fields) in the interstellar medium (ISM). However, the mechanisms that amplify and dissipate B-fields during a merger remain unclear.
E. López-Rodríguez +10 more
semanticscholar +1 more source
Extragalactic Magnetic Fields and the Arrival Direction of Ultra-high-energy Cosmic Rays
Astrophysical Journal, 2022 We studied the propagation of ultra-high-energy cosmic rays in extragalactic magnetic fields (EGMFs). We report on the effect of the EGMF on the large-scale anisotropy signal measured at Earth. We show how a spurious dipolar and quadrupolar signal can be
C. de Oliveira, V. de Souza
semanticscholar +1 more source