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Solar Energetic Particles

Space Science Reviews, 2000
The emission of energetic particles from the Sun is one of the major manifestations of high energy astrophysics and is related to a variety of astrophysical and geophysical phenomena in the heliosphere. An event of solar energetic particles (SEP) is seen as a sudden rise of the counting rate of the background galactic cosmic rays reaching a high value ...
Ryan JM
exaly   +3 more sources

Solar flares and energetic particles [PDF]

open access: yesPhilosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2012
Solar flares are now observed at all wavelengths from γ -rays to decametre radio waves. They are commonly associated with efficient production of energetic particles at all energies. These particles play a major role in the active Sun because they contain a large amount of the energy released
Vilmer Nicole
exaly   +4 more sources

Solar Energetic Particle Isotopic Composition

Space Science Reviews, 1998
We discuss isotopic abundance measurements of heavy (6 ≤ Z ≤ 14) solar energetic particles with energies from ∼15 to 70 MeV/nucleon, focusing on new measurements made on SAMPEX during two large solar particle events in late 1992. These measurements are corrected for charge/mass dependent acceleration effects to obtain estimates of coronal isotopic ...
Edward C. Stone, R A Leske, E C Stone
exaly   +4 more sources

Solar Energetic Particles

2021
Solar energetic particles (SEPs) have been studied for over seven decades, initially from ground-based instrumentation and now routinely from spacecraft throughout the heliosphere. Our knowledge of the acceleration and transport of these particles from close to the Sun througzh the interplanetary medium has advanced dramatically in the last 40 years as
Cohen, Christina M. S.   +4 more
openaire   +2 more sources

Large gradual solar energetic particle events

open access: yesLiving Reviews in Solar Physics, 2016
Solar energetic particles, or SEPs, from suprathermal (few keV) up to relativistic ( ∼ few GeV) energies are accelerated near the Sun in at least two ways: (1) by magnetic reconnection-driven processes during solar flares resulting in impulsive SEPs, and (2) at fast coronal-mass-ejection-driven shock waves that produce large gradual SEP events.
Mihir I Desai, Joe Giacalone
exaly   +4 more sources

Solar wind turbulence: Connections with energetic particles

New Astronomy, 2021
Abstract For the solar wind, a wealth of observational evidence indicates that turbulence is an important dynamical process for velocity (v), magnetic (b), and other related fluctuations at MHD (fluid) scales. Here we review such observations and turbulence features, including discussion of when wave or turbulence descriptions can (or cannot) explain
Oughton, Sean, Engelbrecht, N. Eugene
openaire   +1 more source

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