Results 21 to 30 of about 186,144 (251)

GALACTIC COSMIC RAYS IN THE LOCAL INTERSTELLAR MEDIUM: VOYAGER 1 OBSERVATIONS AND MODEL RESULTS. [PDF]

open access: yesAstrophys J, 2016
Cummings AC   +8 more
europepmc   +2 more sources

Origin of Galactic Cosmic Rays [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2012
The origin of the bulk of cosmic rays (CRs) observed at Earth is the topic of a century long investigation, paved with successes and failures. From the energetic point of view, supernova remnants (SNRs) remain the most plausible sources of CRs up to ...
Blasi, Pasquale
core   +3 more sources

Cosmic rays from Galactic pulsars [PDF]

open access: yesAstronomy & Astrophysics, 2004
We calculate energy spectra and mass composition of cosmic rays accelerated by the galactic population of pulsars during their radio and gamma-ray phase.
Abu-Zayyad   +64 more
core   +2 more sources

Red Dwarfs as Sources of Cosmic Rays [PDF]

open access: yesEPJ Web of Conferences, 2022
The Pamela, Fermi, AMS-02 spectrometer experimental data cannot be explained using the diffusive models of propagation of cosmic-rays accelerated at the supernova shocks and require the existence of nearby sources of cosmic rays at the distances less ...
Sinitsyna Vera Yu.   +2 more
doaj   +1 more source

Origin of galactic cosmic rays [PDF]

open access: yesPhysical Review D, 1995
Motivated by recent measurements of the major components of the cosmic radiation around 10 TeV/nucleon and above, we discuss the phenomenology of a model in which there are two distinct kinds of cosmic ray accelerators in the galaxy. A comparison of the spectra of hydrogen and helium up to 100 TeV per nucleon suggests that these two elements do not ...
, Biermann, , Gaisser, , Stanev
openaire   +2 more sources

GALACTIC COSMIC RAY ANISOTROPY MODELLING

open access: yesSolar-Terrestrial Physics, 2020
We calculate the angular distribution of cosmic rays at a given point of the heliosphere under the assumption that the incoming flux from outer space is isotropic. The static magnetic field is shown to cause no anisotropy provided that the observation point is situated out of the trapped particle area.
Peregoudov D.V.   +3 more
openaire   +4 more sources

Modulation of Galactic Cosmic Rays in the Inner Heliosphere over Solar Cycles [PDF]

open access: yes, 2017
The 11- and 22-year modulation of galactic cosmic rays (GCRs) in the inner heliosphere is studied using a numerical model developed by Qin and Shen in 2017.
Z.-N. Shen, G. Qin
semanticscholar   +1 more source

Southern Hemisphere Observations of a $10^{18}$eV Cosmic Ray Source Near the Direction of the Galactic Centre [PDF]

open access: yes, 2000
We report on an analysis of data from the southern hemisphere SUGAR cosmic ray detector. We confirm the existence of an excess of $10^{18}$eV cosmic rays from a direction close to the Galactic Centre, first reported by the AGASA group.
B.R. Dawson   +11 more
core   +2 more sources

Ultrahigh-energy cosmic-ray nuclei from black hole jets: Recycling galactic cosmic rays through shear acceleration [PDF]

open access: yes, 2017
We perform Monte Carlo simulations of transrelativistic shear acceleration dedicated to a jet-cocoon system of active galactic nuclei. A certain fraction of galactic cosmic rays in a halo is entrained, and sufficiently high-energy particles can be ...
S. Kimura, K. Murase, B. Zhang
semanticscholar   +1 more source

New look on the origin of cosmic rays

open access: yesEPJ Web of Conferences, 2017
From the analysis of the flux of high energy particles, E > 3 · 1018 eV, it is shown that the distribution of the power density of extragalactic rays over energy is of the power law, q̅(E) ∝ E−2.7, with the same index of 2.7 that has the distribution of ...
Istomin Ya.N.
doaj   +2 more sources

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