Results 131 to 140 of about 181,166 (278)

Multi‐Platform Observations of the Radial Penetration of Substorm Injected Electrons and Subsequent Slot‐Filling Event

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract On 15 February 2018 a co‐rotating interaction region (CIR) from an equatorial coronal hole reached the Earth. The CIR initiated a moderate and slowly intensifying geomagnetic storm, which began with a large and strong substorm injection.
Geoffrey D. Reeves   +27 more
wiley   +1 more source

Spectra of He Isotopes and the 3He/4He Ratio

open access: yesThe Astrophysical Journal
Since its launch, the Alpha Magnetic Spectrometer-02 (AMS-02) has delivered outstanding quality measurements of the spectra of cosmic-ray (CR) species, e ^± , $\bar{p}$ , and nuclei (H–Si, S, Fe), which have resulted in a number of breakthroughs. Besides
M. J. Boschini   +13 more
doaj   +1 more source

TRAPPED‐S, a New Environment Model Framework for Saturn: Focus on Radiation‐Specification Model

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract As space agencies contemplate missions to the outer planets' systems and moons, entailing prolonged observations via local orbiters or potential landers, meticulous assessment of the local environment—encompassing radiation and plasma conditions—is paramount for the design of both the platform and scientific payload.
A. Sicard   +7 more
wiley   +1 more source

Angular Power Spectrum of TeV–PeV Cosmic-Ray Anisotropies

open access: yesThe Astrophysical Journal
Simulations of the cosmic-ray (CR) anisotropy down to TeV energies are presented, using turbulence parameters consistent with those inferred from observations of the interstellar medium.
Wenyi Bian   +2 more
doaj   +1 more source

Galactic cosmic rays measured by UVS on Voyager 1 and the end of the modulation [PDF]

open access: bronze, 2014
R. Lallement   +3 more
openalex   +1 more source

SAS-2 observations of the high energy gamma radiation from the Vela region [PDF]

open access: yes
Data from a scan of the galactic plane by the SAS-B high energy gamma ray experiment in the region 250 deg smaller than 12 smaller than 290 deg show a statistically significant excess over the general radiation from the galactic plane for gamma radiation
Bignami, G. F.   +3 more
core   +1 more source

Note on the Origin of the Highest Energy Cosmic Rays [PDF]

open access: yes, 2000
In this note we argue that the galactic model chosen by E.-J. Ahn, G. Medina-Tanco, P.L. Bierman and T. Stanev in their paper discussing the origin of the highest energy cosmic rays, is alone responsible for the focussing of positive particles towards ...
Billoir, Pierre   +1 more
core   +2 more sources

Galactic Anisotropy as Signature of ``Top-Down'' Mechanisms of Ultra-High Energy Cosmic Rays

open access: yes, 1998
We show that ``top-down'' mechanisms of Ultra-High Energy Cosmic Rays which involve heavy relic particle-like objects predict Galactic anisotropy of highest energy cosmic rays at the level of minimum $\sim 20%$.
C. T. Hill   +14 more
core   +2 more sources

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