Results 71 to 80 of about 2,675,738 (224)
On the parametrization of the energetic-particle pitch-angle diffusion coefficient
Journal of Space Weather and Space Climate, 2013 Context: Solar energetic particle (SEP) events are one of the key ingredients of the near-Earth radiation environment. Pitch-angle scattering by fluctuations imposed on the large-scale magnetic field is assumed to be the basic physical process behind ...
Vainio Rami, Agueda Neus
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Monitoring of geomagnetic disturbances using the global survey method in real time
Solar-Terrestrial Physics, 2019 A method for forecasting geomagnetic storms using the realization of the global survey method in real time is presented. The method is based on data from the worldwide network of neutron monitors NMDB.
Grigoryev V.G. +2 more
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Interplanetary Medium as Fuel for Plasma Thrusters
, 2020 We examine the use of the interplanetary substance as a possible fuel for spacecraft plasma thrusters for interplanetary flights. The solar radiation is considered as an energy source for the ionization and the acceleration of particles of captured space environment that is used as drop weight.
Karimov, A. R. +4 more
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EUHFORIA: European heliospheric forecasting information asset
Journal of Space Weather and Space Climate, 2018 The implementation and first results of the new space weather forecasting-targeted inner heliosphere model “European heliospheric forecasting information asset” (EUHFORIA) are presented.
Pomoell Jens, Poedts S.
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The Diffusion and Scattering of Accelerating Particles in Compressible MHD Turbulence
The Astrophysical JournalWe numerically study the diffusion and scattering of cosmic rays (CRs) together with their acceleration processes in the framework of the modern understanding of magnetohydrodynamic (MHD) turbulence. Based on the properties of compressible MHD turbulence
Na-Na Gao, Jian-Fu Zhang
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Forbush Effects Associated with Disappeared Solar Filaments
AtmosphereThe Forbush effects (FEs) in cosmic rays associated with interplanetary disturbances caused by the disappearance of solar filaments (DSFs) outside active regions (ARs) are considered.
Olga Kryakunova +6 more
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Decréscimos magnéticos no meio interplanetário
Revista Brasileira de Ensino de FísicaEste artigo tem como objetivo apresentar aos leitores os fenômenos conhecidos como decréscimos magnéticos (MDs, do inglês magnetic decreases) ou buracos magnéticos (MHs, do inglês magnetic holes).
Edio da Costa Junior +2 more
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Coherence of Elsässer Variables in the slow solar wind from 0.1 au to 0.3 au
Frontiers in Astronomy and Space SciencesThe highly Alfvénic fluctuations (AF) and magnetic-velocity alignment structures (MVAS) are two distinguished components in the near-Sun slow solar wind observed by Parker Solar Probe.
Honghong Wu, Liping Yang, Shiyong Huang
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Solar-terrestrial response to large extension or long-duration solar gamma ray events [PDF]
Geofísica Internacional, 2000 Gamma ray lines (GRL) from the large event of 29 September 1989 were observed from a site about 25 degrees from the flare site. In June 1991, at least three long-duration GRL events were observed by several spacecraft.
A. Méndez Berhondo +3 more
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Evading the dust fragmentation barrier with the streaming instability in protoplanetary disks
Astronomy & AstrophysicsContext. The streaming instability (SI) is a leading candidate for reaching solid densities sufficient to trigger the gravitational collapse needed for the formation of planetesimals. However, dust growth barriers appear to impede the ability to assemble
Vallucci-Goy V. +3 more
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