Results 1 to 10 of about 3,608,924 (307)

An Indication of Anisotropy in Arrival Directions of Ultra-high-energy Cosmic Rays through Comparison to the Flux Pattern of Extragalactic Gamma-Ray Sources [PDF]

open access: yes, 2018
A new analysis of the data set from the Pierre Auger Observatory provides evidence for anisotropy in the arrival directions of ultra-high-energy cosmic rays on an intermediate angular scale, which is indicative of excess arrivals from strong, nearby ...
T. P. A. C. A. Aab   +391 more
semanticscholar   +1 more source

Cosmic-ray hydrodynamics: Alfvén-wave regulated transport of cosmic rays [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
Star formation in galaxies appears to be self-regulated by energetic feedback processes. Among the most promising agents of feedback are cosmic rays (CRs), the relativistic ion population of interstellar and intergalactic plasmas.
T. Thomas   +4 more
semanticscholar   +1 more source

Introduction to Cosmic Rays [PDF]

open access: yes, 2007
Energetic particles, traditionally called Cosmic Rays, were discovered nearly a hundred years ago, and their origin is still uncertain. Their main constituents are the normal nuclei as in the standard cosmic abundances of matter, with some enhancements for the heavier elements; there are also electrons, positrons and anti-protons, but no anti-nuclei ...
Biermann, Peter, Sigl, Guenter
openaire   +4 more sources

Axions and cosmic rays [PDF]

open access: yesTheoretical and Mathematical Physics, 2012
16 pages, 3 figures.
Domenec Espriu   +2 more
openaire   +4 more sources

Cosmic reionization by primordial cosmic rays [PDF]

open access: yesAstronomy & Astrophysics, 2014
4 pages, 2 figures, accepted for publication as a letter to the editor in Astronomy and ...
Tueros, Matías Jorge   +2 more
openaire   +6 more sources

A large light-mass component of cosmic rays at 1017–1017.5 electronvolts from radio observations [PDF]

open access: yesNature, 2016
Cosmic rays are the highest-energy particles found in nature. Measurements of the mass composition of cosmic rays with energies of 1017–1018 electronvolts are essential to understanding whether they have galactic or extragalactic sources.
S. Buitink   +179 more
semanticscholar   +1 more source

A precision search for WIMPs with charged cosmic rays [PDF]

open access: yes, 2017
AMS-02 has reached the sensitivity to probe canonical thermal WIMPs by their annihilation into antiprotons. Due to the high precision of the data, uncertainties in the astrophysical background have become the most limiting factor for indirect dark matter
Annika Reinert, M. Winkler
semanticscholar   +1 more source

Large-scale cosmic ray fluctuations inferred from the ground-based neutron and ionizing component observations and their relevance to cosmic ray anisotropy

open access: yesGeofísica Internacional, 1988
Se estudia el comportamiento del espectro de potencia de las fluctuaciones en la intensidad de los rayos cósmicos para frecuencias menores de 10-4Hz, determinado a partir de las observaciones en superficie de las componentes nucleónica y de ionización ...
O. V. Gulinsky   +12 more
doaj   +1 more source

Testing hadronic and photo-hadronic interactions as responsible for UHECR and neutrino fluxes from Starburst Galaxies [PDF]

open access: yesEPJ Web of Conferences, 2023
We test the hypothesis that starburst galaxies are the sources of ultra-high energy cosmic rays and high-energy neutrinos. The computation of interactions of ultra-high energy cosmic rays in the starburst environment as well as in the propagation to the ...
Condorelli Antonio   +3 more
doaj   +1 more source

Cosmic ray acceleration in superbubbles and the composition of cosmic rays [PDF]

open access: yesAIP Conference Proceedings, 2000
latex 8 pages, to appear in Proc.
Richard E. Lingenfelter   +2 more
openaire   +4 more sources

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