Results 41 to 50 of about 4,166,127 (209)

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, C. Pfrommer
semanticscholar   +1 more source

Heliospheric modulation of cosmic rays during the neutron monitor era: Calibration using PAMELA data for 2006–2010 [PDF]

open access: yes, 2017
A new reconstruction of the heliospheric modulation potential for galactic cosmic rays is presented for the neutron monitor era, since 1951. The new reconstruction is based on an updated methodology in comparison to previous reconstructions: (1) the use ...
I. Usoskin   +4 more
semanticscholar   +1 more source

Ultra-high-energy cosmic rays [PDF]

open access: yesPhysics reports, 2018
In this report we review the important progress made in recent years towards understanding the experimental data on ultra-high-energy ($E \gtrsim 10^9$ GeV) cosmic rays. We begin with a general survey of the available data, including a description of the
L. Anchordoqui
semanticscholar   +1 more source

Anomalous cosmic rays [PDF]

open access: yesAIP Conference Proceedings, 2013
We review the observed properties of anomalous cosmic rays and the present status of our knowledge of the processes by which they originate. We compiled a comprehensive set of ACR energy spectral data from various spacecraft throughout the heliosphere during the passes of Ulysses over the poles of the Sun and present first results of a detailed ...
Cummings, Alan C., Stone, Edward C.
openaire   +2 more sources

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

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

Ultra-high-energy cosmic rays and neutrinos from tidal disruptions by massive black holes [PDF]

open access: yesAstronomy & Astrophysics, 2017
Tidal disruptions are extremely powerful phenomena that have been designated as candidate sources of ultra-high-energy cosmic rays. The disruption of a star by a black hole can naturally provide protons and heavier nuclei, which can be injected and ...
C. Guépin   +4 more
semanticscholar   +1 more source

STRANGELETS IN COSMIC RAYS [PDF]

open access: yesThe Eleventh Marcel Grossmann Meeting, 2008
10 pages.
openaire   +3 more sources

On the Search for the Galactic PeVatrons by Means of Gamma-Ray Astronomy

open access: yesUniverse, 2022
Cosmic rays are ultra-relativistic particles that slam into the atmosphere from all directions in the sky. Gamma rays emitted when cosmic rays interact with Galactic gas and radiation fields are a powerful tool to investigate their origin. Many candidate
Sabrina Casanova
doaj   +1 more source

Indirect dark matter searches in gamma and cosmic rays [PDF]

open access: yesNature Physics, 2017
Dark matter candidates such as weakly interacting massive particles are predicted to annihilate or decay into Standard Model particles, leaving behind distinctive signatures in gamma rays, neutrinos, positrons, antiprotons, or even antinuclei.
J. Conrad, O. Reimer
semanticscholar   +1 more source

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