Results 81 to 90 of about 1,276 (215)

Solar influences in the heliosphere: understanding coronal mass ejections and their associated magnetic clouds

, 2011
Coronal mass ejections (CMEs) are large-scale explosions on the Sun that expel plasma and magnetic field into the heliosphere. The interplanetary counterparts of CMEs, termed interplanetary CMEs (ICMEs), are often directly observed by spacecraft ...
Steed, K.
core  

Polar, Cluster and SuperDARN evidence for high latitude merging during southward IMF: temporal/spatial evolution [PDF]

, 2003
Magnetic merging on the dayside magnetopause often occurs at high latitudes. Polar measured fluxes of accelerated ions and wave Poynting vectors while skimming the subsolar magnetopause.
A. Balogh (7591361), K. D. Siebert (7592168), Weimer, D. R., J. D. Scudder (7592156), Dunlop, M., E. J. Lund (7592159), Russell, C. T., M. André (3683134), Dunlop, M. W., Rème, H., André, M., C. J. Farrugia (7592051), Burke, W. J., W. J. Burke, Lester, M., J. A. Wild, Grocott, A., M. Lester, W. J. Burke (7592153), N. C. Maynard, M. Andre, A. Balogh, M. Lester (7589660), E. J. Lund, C. T. Russell, Lund, E., H. Rème, Balogh, A., Maynard, N. C., Lund, E. J., C. T. Russell (7592162), M. Dunlop, Adrian Grocott (7590026), J. A. Wild (7591442), Ober, D. M., C. J. Farrugia, Siebert, K. D., A. Grocott, D. R. Weimer, D. M. Ober (7592150), K. D. Siebert, D. R. Weimer (7592165), M. W. Dunlop (7591493), Scudder, J. D., Farrugia, C. J., H. Rème (7591274), Wild, J. A., J. D. Scudder, D. M. Ober, N. C. Maynard (7592147)   +49 more
core   +1 more source

Energetic particle investigation using the ERNE instrument

Annales Geophysicae
During solar flares and coronal mass ejections, nuclei and electrons accelerated to high energies are injected into interplanetary space. These accelerated particles can be detected at the SOHO satellite by the ERNE instrument.
J. Torsti, E. Valtonen, L. Kocharov, M. Lumme, T. Eronen, M. Louhola, E. Riihonen, G. Schultz, M. Teittinen, R. Vainio, A. Anttila, J. Kuusela   +11 more
doaj  

The Effect of Large-scale Magnetic Fluctuations on Energetic Particle Profiles across Interplanetary Shocks

The Astrophysical Journal
In situ observations of energetic particles associated with interplanetary (IP) shocks, known as energetic storm particle (ESP) events, often show time-intensity profiles quite different from predictions of classical diffusive shock acceleration theory ...
Ming-Yuan Lo, Fan Guo, Joe Giacalone, Lulu Zhao, David Lario, Gergely Koban, George C. Ho, Christina M. S. Cohen   +7 more
doaj   +1 more source

The effect of interplanetary acceleration on the propagation of energetic solar particles in prompt events

Astrophysics and Space Science, 1980
Crank-Nicholson solutions are obtained to the time-dependent Fokker-Planck equation for propagation in the interplanetary medium following a point in time injection of energetic solar particles and including the acceleration terms $$\frac{\partial }{{\partial T}}\left( {D_{TT} \frac{{\partial U}}{{\partial T}}} \right) - \frac{\partial }{{\partial T}
Cecchini, S., Moussas, X., Quenby, J.J.
openaire   +2 more sources

Accélération non adiabatique des ions causée par des ondes électromagnétiques (observations de Cluster et Double Star) et réponse du champ géomagnétique aux variations de la pression dynamique du vent solaire

, 2013
Cette thèse comporte deux thèmes principaux: l'un concerne l'accélération non adiabatique des ions dans la couche de plasma proche de la Terre, l'autre les pulsations géomagnétiques dues à la décroissance de la pression dynamique du vent solaire.
Wang, Zhiqiang
core  

Particle acceleration in solar flares

, 1987
The most direct signatures of particle acceleration in flares are energetic particles detected in interplanetary space and in the Earth atmosphere, and gamma rays, neutrons, hard X-rays, and radio emissions produced by the energetic particles in the ...
Forman, M. A., Ramaty, R.
core  

Solar Wind With Field Lines and Energetic Particles (SOFIE) Model: Application to Historical Solar Energetic Particle Events

Space Weather
In this paper, we demonstrate the applicability of the data‐driven solar energetic particle (SEP) model, SOlar‐wind with FIeld‐lines and Energetic‐particles (SOFIE), to simulate the acceleration and transport processes of SEPs and make forecast of the ...
Lulu Zhao, Igor Sokolov, Tamas Gombosi, David Lario, Kathryn Whitman, Zhenguang Huang, Gabor Toth, Ward Manchester, Bart van derHolst, Nishtha Sachdeva, Weihao Liu   +10 more
doaj   +1 more source

Dynamical small-scale magnetic islands as a source of local acceleration of particles in the solar wind

, 2015
We present observations of energetic particle flux increases up to 1 MeV at 1 AU, which cannot be associated with ordinary mechanisms of particle acceleration, such as acceleration at shocks or at the Sun.
le Roux, Jakobus, Khabarova, Olga, Li, Gang, Webb, Gary, Malandraki, Olga, Zharkova, Valentina, Zank, Gary   +6 more
core   +1 more source

A Tempered Fractional Kinetic Transport Theory for Energetic Particle Interaction with Quasi-two-dimensional Turbulence in the Large-scale Solar Wind

The Astrophysical Journal
Observational evidence is accumulating that turbulence in the solar wind is intermittent (non-Gaussian) because of the strong presence of a quasi-two-dimensional (quasi-2D), low-frequency turbulence component containing nonpropagating, closed, small ...
J. A. le Roux
doaj   +1 more source