Results 21 to 30 of about 271,189 (310)

Overview of the Auger@TA project and preliminary results from Phase I [PDF]

open access: yesEPJ Web of Conferences, 2019
We report on the first results of a unique in-situ experimental cross-calibration effort of the surface detector of the Pierre Auger Observatory and of the Telescope Array experiment (Auger@TA).
Sarazin Fred   +12 more
doaj   +1 more source

Dark cosmic rays

open access: yesPhysics Letters B, 2017
If dark matter particles have an electric charge, as in models of millicharged dark matter, such particles should be accelerated in the same astrophysical accelerators that produce ordinary cosmic rays, and their spectra should have a predictable rigidity dependence. Depending on the charge, the resulting "dark cosmic rays" can be detected as muon-like
Hu, Ping-Kai   +2 more
openaire   +3 more sources

SUPERDIFFUSION OF COSMIC RAYS: IMPLICATIONS FOR COSMIC RAY ACCELERATION [PDF]

open access: yesThe Astrophysical Journal, 2014
18 pages, 6 figures, erratum in eqs.(12,13) and table 1 included, ApJ ...
Lazarian, A., Yan, Huirong
openaire   +2 more sources

Cosmic rays and space weather: effects on global climate change [PDF]

open access: yesAnnales Geophysicae, 2012
We consider possible effects of cosmic rays and some other space factors on the Earth's climate change. It is well known that the system of internal and external factors formatting the climate is very unstable; decreasing planetary temperature leads ...
L. I. Dorman, L. I. Dorman
doaj   +1 more source

The Density Spike in Cosmic-Ray-Modified Shocks: Formation, Evolution, and Instability [PDF]

open access: yes, 1996
We examine the formation and evolution of the density enhancement (density spike) that appears downstream of strong, cosmic-ray-modified shocks. This feature results from temporary overcompression of the flow by the combined cosmic-ray shock precursor ...
Axford W. I.   +12 more
core   +3 more sources

COSMIC RAY ANTIPROTONS [PDF]

open access: yesParticles, Strings and Cosmology (PASCOS 99), 2000
Cosmic ray antiprotons have been detected for over 20 years and are now measured reliably. Standard particle and astrophysics predict a conventional spectrum and abundance of secondary antiprotons consistent with all current measurements. These measurements place limits on exotic Galactic antiproton sources and non-standard antiproton properties ...
openaire   +2 more sources

Radiation Exposure in the Lower Atmosphere during Different Periods of Solar Activity

open access: yesAtmosphere, 2022
In recent years, there has been a huge increase in air travel, both for business and leisure. For this reason, entities such as the European Commission and the International Committee on Radiological Protection have provided several recommendations for ...
Anastasia Tezari   +9 more
doaj   +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

Cosmic ray models

open access: yesProgress in Particle and Nuclear Physics, 2019
89 pages, 56 figures; v2: minor additions, version to ...
Kachelriess, M., Semikoz, D.V.
openaire   +5 more sources

Detection of the temporal variation of the sun's cosmic ray shadow with the IceCube detector [PDF]

open access: yes, 2018
We report on the observation of a deficit in the cosmic ray flux from the directions of the Moon and Sun with five years of data taken by the IceCube Neutrino Observatory.
Aartsen, M. G.   +329 more
core   +5 more sources

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