The multi-facet nature of the origin of cosmic rays is such that some of the problems currently met in our path to describing available data are due to oversimplified models of CR acceleration and transport, and others to lack of knowledge of the ...
Blasi Pasquale
doaj +4 more sources
Galactic Cosmic Rays Throughout the Heliosphere and in the Very Local Interstellar Medium. [PDF]
We review recent observations and modeling developments on the subject of galactic cosmic rays through the heliosphere and in the Very Local Interstellar Medium, emphasizing knowledge that has accumulated over the past decade.
Rankin JS +9 more
europepmc +2 more sources
Diffuse Emission of Galactic High-energy Neutrinos from a Global Fit of Cosmic Rays [PDF]
In the standard picture of Galactic cosmic rays, a diffuse flux of high-energy gamma rays and neutrinos is produced from inelastic collisions of cosmic-ray nuclei with the interstellar gas.
Georg Schwefer +2 more
doaj +2 more sources
Central Nervous System Responses to Simulated Galactic Cosmic Rays. [PDF]
In preparation for lunar and Mars missions it is essential to consider the challenges to human health that are posed by long-duration deep space habitation via multiple stressors, including ionizing radiation, gravitational changes during flight and in ...
Cekanaviciute E, Rosi S, Costes SV.
europepmc +2 more sources
First Detection of sub-PeV Diffuse Gamma Rays from the Galactic Disk: Evidence for Ubiquitous Galactic Cosmic Rays beyond PeV Energies. [PDF]
We report, for the first time, the long-awaited detection of diffuse gamma rays with energies between 100 TeV and 1 PeV in the Galactic disk. Particularly, all gamma rays above 398 TeV are observed apart from known TeV gamma-ray sources and compatible ...
M. Amenomori +94 more
semanticscholar +3 more sources
Understanding the spectral hardenings and radial distribution of Galactic cosmic rays and Fermi diffuse gamma-rays with spatially-dependent propagation [PDF]
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
Guo, Yi-Qing, Yuan, Qiang
core +2 more sources
Cooler and smoother – the impact of cosmic rays on the phase structure of galactic outflows [PDF]
We investigate the impact of cosmic rays (CRs) on galactic outflows from a multi-phase interstellar medium with solar neighbourhood conditions. The three-dimensional magneto-hydrodynamical simulations include CRs as a relativistic fluid in the advection ...
P. Girichidis +3 more
semanticscholar +3 more sources
Galactic cosmic rays on extrasolar Earth-like planets: II. Atmospheric implications [PDF]
(abridged abstract) Theoretical arguments indicate that close-in terrestial exoplanets may have weak magnetic fields. As described in the companion article (Paper I), a weak magnetic field results in a high flux of galactic cosmic rays to the top of the ...
Atri, D. +4 more
core +3 more sources
The origin of galactic cosmic rays [PDF]
One century ago Viktor Hess carried out several balloon flights that led him to conclude that the penetrating radiation responsible for the discharge of electroscopes was of extraterrestrial origin. One century from the discovery of this phenomenon seems
P. Blasi
semanticscholar +4 more sources

