Results 1 to 10 of about 15,730 (160)

Solar energetic particles and radio burst emission [PDF]

open access: yesJournal of Space Weather and Space Climate, 2017
We present a statistical study on the observed solar radio burst emission associated with the origin of in situ detected solar energetic particles. Several proton event catalogs in the period 1996–2016 are used.
Miteva Rositsa   +2 more
doaj   +3 more sources

Properties of solar energetic particle events inferred from their associated radio emission [PDF]

open access: yesAstronomy and Astrophysics, 2015
17 pages, 11 figures, accepted for publication in A& ...
A Kouloumvakos, A Nindos, E Valtonen
exaly   +5 more sources

An alternative to the plasma emission model: Particle-in-cell, self-consistent electromagnetic wave emission simulations of solar type III radio bursts [PDF]

open access: yesPhysics of Plasmas, 2011
High-resolution (sub-Debye length grid size and 10 000 particle species per cell), 1.5D particle-in-cell, relativistic, fully electromagnetic simulations are used to model electromagnetic wave emission generation in the context of solar type III radio bursts.
D Tsiklauri
exaly   +3 more sources

Energy Spectrum of Solar Energetic Electron Events over 25 Years

open access: yesThe Astrophysical Journal, 2023
We investigate the peak flux energy spectrum of 458 solar energetic electron (SEE) events with a clear velocity dispersion detected at energies from ≤4.2 to ≥108 keV by Wind/3DP from 1994 December through 2019 December, utilizing a pan-spectrum fitting ...
Wen Wang   +3 more
doaj   +1 more source

TRANSMISSION AND EMISSION OF SOLAR ENERGETIC PARTICLES IN SEMI-TRANSPARENT SHOCKS [PDF]

open access: yesThe Astrophysical Journal, 2014
While major solar energetic particle (SEP) events are associated with coronal mass ejection (CME)-driven shocks in solar wind, accurate SEP measurements reveal that more than one component of energetic ions exist in the beginning of the events. Solar electromagnetic emissions, including nuclear gamma-rays, suggest that high-energy ions could also be ...
Leon Kocharov   +3 more
openaire   +2 more sources

Evidence for Energetic Neutral Hydrogen Emission from Solar Particle Events [PDF]

open access: yesThe Astrophysical Journal, 2021
Abstract We report the probable detection of energetic neutral hydrogen atoms (ENAs) at >0.8 MeV in several large solar energetic particle events observed between 1997 and 2004. The low Earth orbiting SAMPEX satellite detected transient increases of quasi-trapped equatorial protons beginning typically ∼3 hr after the X-ray flare and ...
G. M. Mason   +6 more
openaire   +2 more sources

The Effect of the Ambient Solar Wind Medium on a CME-driven Shock and the Associated Gradual Solar Energetic Particle Event

open access: yesThe Astrophysical Journal, 2023
We present simulation results of a gradual solar energetic particle (SEP) event detected on 2021 October 9 by multiple spacecraft, including BepiColombo (Bepi) and near-Earth spacecraft such as the Advanced Composition Explorer (ACE).
Nicolas Wijsen   +17 more
doaj   +1 more source

Particle Acceleration and Their Escape into the Heliosphere in Solar Flares with Open Magnetic Field

open access: yesThe Astrophysical Journal, 2023
Energetic particle populations in the solar corona and in the heliosphere appear to have different characteristics even when produced in the same solar flare.
Mykola Gordovskyy   +4 more
doaj   +1 more source

Properties of High-Energy Solar Particle Events Associated with Solar Radio Emissions [PDF]

open access: yesSolar Physics, 2019
Abstract We have analysed 58 high-energy proton events and 36 temporally related near-relativistic electron events from the years 1997 – 2015 for which the velocity dispersion analysis of the first-arriving particles gave the apparent path lengths between 1 and 3 AU.
Dheyaa Ameri   +2 more
openaire   +2 more sources

Modeling Hadronic Gamma-Ray Emissions from Solar Flares and Prospects for Detecting Nonthermal Signatures from Protostars

open access: yesThe Astrophysical Journal, 2023
We investigate gamma-ray emission in the impulsive phase of solar flares and the detectability of nonthermal signatures from protostellar flares. Energetic solar flares emit high-energy gamma rays of GeV energies, but their production mechanism and ...
Shigeo S. Kimura   +2 more
doaj   +1 more source

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