Results 21 to 30 of about 2,878 (188)
Propagation of Cosmic Rays and their Secondaries in the Intracluster Medium [PDF]
Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019), 2019 We present results of the propagation of high-energy cosmic rays (CRs) in the intracluster medium (ICM). To this end, we employ three-dimensional cosmological magnetohydrodynamical simulations of the turbulent intergalactic medium to explore the propagation of CRs with energies between $10^{14}$ and $10^{19}$ eV.
Saqib Hussain +2 more
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Observation of Properties of Primary and Secondary Cosmic Rays by the Alpha Magnetic Spectrometer on the International Space Station [PDF]
EPJ Web of Conferences, 2019 The Alpha Magnetic Spectrometer (AMS-02) is a wide acceptance high-energy physics experiment installed on the International Space Station in May 2011 and operating continuously since then.
Oliva Alberto
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Cosmic-Ray Deuterium and HELIUM-3 of Secondary Origin and the Residual Modulation of Cosmic Rays [PDF]
The Astrophysical Journal, 1969 Deuterium and helium 3 produced by nuclear interactions of cosmic rays with interstellar ...
Reuven Ramaty, Richard E. Lingenfelter
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Gamma-Ray Cosmology and Tests of Fundamental Physics
Galaxies, 2022 The propagation of gamma-rays over cosmological distances is the subject of extensive theoretical and observational research at GeV and TeV energies. The mean free path of gamma-rays in the cosmic web is limited above 100 GeV due to the production of ...
Jonathan Biteau, Manuel Meyer
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Estimated equivalent radiation dose at different altitudes in Earth’s atmosphere
Solar-Terrestrial Physics, 2022 The paper reports the results of simulation of cosmic ray proton transport through Earth’s atmosphere. The main objective of this work is to obtain characteristics of secondary particle fluxes at different altitudes and to convert them to equivalent dose
Maurchev E. A. +4 more
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K-capture cosmic ray secondaries and reacceleration [PDF]
Advances in Space Research, 2001 We have investigated the effect of reacceleration on interstellar flux of K-capture secondaries V-49 and Cr-51. Several isotopic ratios for these two isotopes are calculated using the galactic diffusion model with and without distributed reacceleration.
F.C. Jones +3 more
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The Astrophysical Journal, 2023 Multi-messenger anomalies, including spectral hardening or excess of nuclei, leptons, ratios of $\bar{p}/p$ and B/C, and anisotropic reversal, have been observed in past years.
Bing-Qiang Qiao +3 more
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Secondary cosmic rays in the NUCLEON space experiment [PDF]
Advances in Space Research, 2019 The NUCLEON space observatory is a direct cosmic ray spectrometer designed to study cosmic ray nuclei with $Z=1-30$ at energies $10^{12}-10^{15}$ eV. It was launched as an additional payload onboard the Russian Resource-P No. 2 satellite. In this work B/C, N/O and subFe/Fe ratios are presented.
Grebenyuk, V. +11 more
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The mass composition of cosmic rays measured with LOFAR
EPJ Web of Conferences, 2017 High-energy cosmic rays, impinging on the atmosphere of the Earth initiate cascades of secondary particles, the extensive air showers. The electrons and positrons in the air shower emit electromagnetic radiation.
Hörandel Jörg R. +15 more
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Possible Counterpart Signal of the Fermi Bubbles at the Cosmic-Ray Positrons
The Astrophysical Journal, 2023 The inner Galaxy has hosted cosmic-ray burst events, including those responsible for the gamma-ray Fermi bubbles and the eROSITA bubbles in X-rays. In this work, we study the Alpha Magnetic Spectrometer positron fraction and find three features around 12,
Ilias Cholis, Iason Krommydas
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