Results 101 to 110 of about 13,868 (214)

Particles accelerated by shocks in the heliosphere [PDF]

The populations of energetic ions accelerated by shocks in the heliosphere are reviewed briefly.
Lee, Martin A.
core   +1 more source

Modeling Shock‐accelerated Solar Energetic Particles Coupled to Interplanetary Alfven Waves

The Astrophysical Journal, 2003
We present an idealized model simulating the coupled evolution of the distributions of multispecies shock-accelerated energetic ions and interplanetary Alfven waves in gradual solar energetic particle (SEP) events. Particle pitch-angle diffusion coefficients are expressed in terms of wave intensities, and wave growth rates in terms of momentum ...
C. K. Ng, D. V. Reames, A. J. Tylka
openaire   +1 more source

Electron Acceleration in Magnetic Reconnection-driven Turbulence in the Earth’s Magnetotail

The Astrophysical Journal
The Magnetospheric Multiscale mission has identified regions of magnetic reconnection surrounded by strong turbulence associated with particle acceleration in the Earth’s magnetotail.
R. E. Ergun, Y. Qi, T. Vo, A. Chasapis, N. Pathak, M. E. Usanova, D. Sega, N. Ahmadi, H. George, S. J. Schwartz   +9 more
doaj   +1 more source

Comparative Analysis Of Interplanetary Magnetic Field And Moving Charged Particles [PDF]

, 2017
The discussion reviews the wave-particle duality of clouds of ions, protons and electron blown out from Sun and enter Earthrsquos magnetic field. They behave as particles when they are at rest or moving with uniform motion-velocity from the source or co ...
Ayegba, A. (Abdullahi), Paul, J. O. (Jaiyeola)   +1 more
core  

THE EFFECT OF TURBULENCE INTERMITTENCE ON THE EMISSION OF SOLAR ENERGETIC PARTICLES BY CORONAL AND INTERPLANETARY SHOCKS [PDF]

Major solar energetic particle events are associated with shock waves in solar corona and solar wind. Fast scattering of charged particles by plasma turbulence near the shock wave increases the efficiency of the particle acceleration in the shock, but ...
Kocharov, Leon, Laitinen, Timo Lauri Mikael, Vainio, Rami   +2 more
core   +1 more source

Interplanetary propagation of flare-associated energetic particles [PDF]

A propagation model which combines a Gaussian profile for particle release from the sun, with interplanetary particle densities predicted by focused diffusion, was proposed to explain the propagation history of flare associated energetic particles.
Earl, J. A., Masung, L. L.
core   +1 more source

Acceleration of protons by interplanetary shocks [PDF]

Acceleration of protons by interplanetary ...
Arens, J. F., Ogilvie, K. W.
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Model for Particles Accelerated at Interplanetary Shocks starting with a Power Law Energy Spectrum

, 2022
This work is supported by the NSF-REU solar physics program at SAO, grant number AGS-1850750. This work is also partially supported by the NSF under grant 1850774.
openaire   +1 more source

Towards advanced forecasting of solar energetic particle events with the PARASOL model

Journal of Space Weather and Space Climate
Gradual solar energetic particle (SEP) events are generally attributed to the particle acceleration in shock waves driven by coronal mass ejections (CMEs). Space-weather effects of such events are important, so there has been continuous effort to develop
Afanasiev Alexandr, Wijsen Nicolas, Vainio Rami   +2 more
doaj   +1 more source

Problems and Progress in Flare Fast Particle Diagnostics

, 2005
Recent progress in the diagnosis of flare fast particles is critically discussed with the main emphasis on high resolution Hard X-Ray (HXR) data from RHESSI and coordinated data from other instruments. Spectacular new photon data findings are highlighted
Alexander, Aschwanden, Brown, Brown, Brown, Brown, Brown, Eduard P. Kontar, Emslie, Emslie, Fleishman, Fletcher, Haydock, Hurford, John C. Brown, Johns, Kane, Kane, Kontar, Kontar, Kontar, Kontar, Kontar, Kosugi, Lin, Lin, Lin, Massone, Melnik, Melnik, Neupert, Piana, Schmahl, Smith, Thompson, Veronig, Vilmer   +36 more
core   +2 more sources