Results 31 to 40 of about 418,709 (225)
Changes in cloud cover associated with Forbush decreases of galactic cosmic rays [PDF]
, 2001 The results of a study to quantify the relationship between cloud cover and short-term Forbush decreases (FD) of galactic cosmic ray flux are presented. Using an extensive record of global satellite-derived cloud products from the International Satellite
Kniveton, DR +5 more
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Extragalactic and galactic sources: New evidence, new challenges, new opportunities
EPJ Web of Conferences, 2013 Recent data bring in sharper focus the issue of relative contributions of galactic and extragalactic sources of ultrahigh-energy cosmic rays. On the one hand, there is some new evidence, from gamma-ray observations of blazars, that cosmic rays are ...
Kusenko Alexander
doaj +1 more source
Giant Molecular Clouds as probes of of Galactic Cosmic Rays with Fermi-LAT [PDF]
EPJ Web of Conferences, 2019 Direct measurements of Cosmic Rays (CRs) can not extend much further than the Solar System. In order to probe the so-called “sea” of Galactic Cosmic Rays, one should rely on secondary emission.
Peron Giada +4 more
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Galactic Cosmic Rays - Theory and Interpretation [PDF]
, 2017 The arguments surrounding the Galactic component of the cosmic rays, the energy budget, ques- tions of composition, spectral features, anisotropy, sources etc, will be critically examined.
Luke Drury MRIA, Drury, Luke O'Connor
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Assessment of galactic cosmic ray models [PDF]
Journal of Geophysical Research: Space Physics, 2012 Among several factors involved in the development of a manned space mission concept, the astronauts' health is a major concern that needs to be considered carefully. Galactic cosmic rays (GCRs), which mainly consist of high‐energetic nuclei ranging from hydrogen to iron and beyond, pose a major radiation health risk in long‐term space missions.
Mrigakshi, Alankrita Isha +4 more
openaire +2 more sources
GALACTIC AND EXTRAGALACTIC SUPERNOVA REMNANTS AS SITES OF PARTICLE ACCELERATION
Acta Polytechnica, 2013 Supernova remnants, owing to their strong shock waves, are likely sources of Galactic cosmic rays. Studies of supernova remnants in X-rays and gamma rays provide us with new insights into the acceleration of particles to high energies. This paper reviews
Manami Sasaki
doaj +1 more source
Recurrent variations of anomalous oxygen in association with a corotating interaction region [PDF]
Annales Geophysicae, 1996 The fluxes of anomalous oxygen (E ranging from 3.5-6.8 MeV/amu), as measured by the EPAC instrument on ULYSSES, show a recurrent variation with the solar rotation period, which is anticorrelated with the fluxes of particles accelerated at the shocks ...
M. K. Reuss, M. Fränz, E. Keppler
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Ionization of the Venusian atmosphere from Solar and Galactic Cosmic Rays [PDF]
, 2015 The atmospheres of the terrestrial planets are exposed to solar and galactic cosmic rays, the most energetic of which are capable of affecting deep atmospheric layers through extensive nuclear and electromagnetic particle cascades.
Desorgher, L +18 more
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The galactic cosmic ray ionization rate [PDF]
Proceedings of the National Academy of Sciences, 2006 The chemistry that occurs in the interstellar medium in response to cosmic ray ionization is summarized, and a review of the ionization rates that have been derived from measurements of molecular abundances is presented. The successful detection of large abundances of H 3 +
openaire +2 more sources
GALACTIC COSMIC RAY ANISOTROPY MODELLING
Solar-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