Research on Cosmic Rays and Their Impact on Human Activities [PDF]
, 2022 The galactic cosmic–ray spectrum extends over 14 orders of magnitudes in energy and about 12 orders of magnitude in intensity, and it can be studied using two different methods: via the “direct detection” of the primary cosmic rays in space or at high ...
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Probing the sea of galactic cosmic rays with Fermi-LAT [PDF]
Physical Review D, 2018 High energy $\ensuremath{\gamma}$-rays from giant molecular clouds (GMCs) carry direct information about the spatial and energy distributions of galactic cosmic rays (CRs).
F. Aharonian +4 more
semanticscholar +1 more source
SOLAR ACTIVITY AND EARTH SEISMICITY
Solar-Terrestrial Physics, 2021 Using the results of continuous long-term observations over 50 years (including solar cycles 20–24), we study the relationship between Earth’s seismicity and solar activity.
V.L. Yanchukovsky
doaj +1 more source
Understanding the spectral hardenings and radial distribution of Galactic cosmic rays and Fermi diffuse $\gamma$ rays with spatially-dependent propagation [PDF]
, 2018 Recent direct measurements of Galactic cosmic ray spectra by balloon/space-borne detectors reveal spectral hardenings of all major nucleus species at rigidities of a few hundred GV. The all-sky diffuse gamma-ray emissions measured by the Fermi Large Area
Yi-qing Guo, Q. Yuan
semanticscholar +1 more source
The Revival of Galactic Cosmic‐Ray Nucleosynthesis? [PDF]
The Astrophysical Journal, 1999 Because of the roughly linear correlation between Be/H and Fe/H in low metallicity halo stars, it has been argued that a ``primary'' component in the nucleosynthesis of Be must be present in addition to the ``secondary'' component from standard Galactic cosmic ray nucleosynthesis.
Fields, Brian D., Olive, Keith A.
openaire +2 more sources
Galactic Cosmic Rays: The first detection of TeV gamma-rays from Red Dwarfs [PDF]
EPJ Web of Conferences, 2019 The present point of view on the sources of cosmic rays in Galaxy considers explosions of supernovae as sources of these particles up to energies of 1017 eV.
Sinitsyna V.G. +2 more
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Measurement of Ultra-High Energy Cosmic Rays with CHICOS [PDF]
, 2009 The California HIgh school Cosmic ray ObServatory (CHICOS) is a ground-based scintillator array designed to measure the extended air showers of ultra-high energy cosmic rays. The goal of the project is to gain insight into the origin of ultra-high energy
Brobeck, Elina
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Solar energetic particles and galactic cosmic rays over millions of years as inferred from data on cosmogenic 26Al in lunar samples [PDF]
Astronomy & Astrophysics, 2018 Aims. Lunar soil and rocks are not protected by a magnetic field or an atmosphere and are continuously irradiated by energetic particles that can produce cosmogenic radioisotopes directly inside rocks at different depths depending on the particle’s ...
S. Poluianov, G. Kovaltsov, I. Usoskin
semanticscholar +1 more source
Models for galactic cosmic-ray propagation [PDF]
Advances in Space Research, 2001 A new numerical model of particle propagation in the Galaxy has been developed, which allows the study of cosmic-ray and gamma-ray production and propagation in 2D or 3D, including a full reaction network. This is a further development of the code which has been used for studies of cosmic ray reacceleration, Galactic halo size, antiprotons and ...
Strong, A. W., Moskalenko, I. V.
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Ultrahigh-energy cosmic-ray nuclei from black hole jets: Recycling galactic cosmic rays through shear acceleration [PDF]
, 2017 We perform Monte Carlo simulations of transrelativistic shear acceleration dedicated to a jet-cocoon system of active galactic nuclei. A certain fraction of galactic cosmic rays in a halo is entrained, and sufficiently high-energy particles can be ...
S. Kimura, K. Murase, B. Zhang
semanticscholar +1 more source