Interplanetary magnetic field control of dayside transient event occurrence and motion in the ionosphere and magnetosphere [PDF]
Annales Geophysicae, 2004 The pressure pulse model for dayside transient ionospheric events predicts dawnward moving events at and prior to local noon during periods of spiral interplanetary magnetic field (IMF) orientation, but duskward moving events at and after local noon ...
G. I. Korotova +4 more
doaj +2 more sources
Modelling interplanetary CMEs using magnetohydrodynamic simulations [PDF]
Annales Geophysicae, 2002 The dynamics of Interplanetary Coronal Mass Ejections (ICMEs) are discussed from the viewpoint of numerical modelling. Hydrodynamic models are shown to give a good zero-order picture of the plasma properties of ICMEs, but they cannot model the ...
P. J. Cargill +2 more
doaj +3 more sources
Relationship of Transport Coefficients with Statistical Quantities of Charged Particles
The Astrophysical Journal, 2023 In previous studies, a general spatial transport equation was derived from the Fokker–Planck equation. The latter equation contains an infinite number of spatial derivative terms T _n = κ _nz ∂ ^n F /∂ z ^n with n = 1, 2, 3, ⋯ .
J. F. Wang, G. Qin
doaj +1 more source
Long-duration high-energy proton events observed by GOES in October 1989 [PDF]
Annales Geophysicae, 1998 We consider the prolonged injection of the high-energy (>10 MeV) protons during the three successive events observed by GOES in October 1989. We apply a solar-rotation-stereoscopy approach to study the injection of the accelerated particles from ...
A. Anttila +3 more
doaj +1 more source
On the solar origin of interplanetary disturbances observed in the vicinity of the Earth [PDF]
Annales Geophysicae, 2003 The solar origin of 40 interplanetary disturbances observed in the vicinity of the Earth between January 1997 and June 1998 is investigated in this paper.
N. Vilmer +4 more
doaj +1 more source
The influence of the interplanetary medium on SuperDARN radar scattering occurrence [PDF]
Annales Geophysicae, 2000 The effects of the characteristics of the interplanetary medium on the radar scattering occurrence, related to the whole array of SuperDARN radars installed in the Northern Hemisphere, have been studied over a two-year period.
P. Ballatore +3 more
doaj +1 more source
Detection of zero anisotropy at 5.2 AU during the November 1998 solar particle event: Ulysses Anisotropy Telescopes observations [PDF]
Annales Geophysicae, 2000 For the first time during the mission, the Anisotropy Telescopes instrument on board the Ulysses spacecraft measured constant zero anisotropy of protons in the 1.3-2.2 MeV energy range, for a period lasting more than three days.
S. Dalla +5 more
doaj +1 more source
Signatures of interplanetary transients behind shocks and their associated near-surface solar activity [PDF]
Annales Geophysicae, 1998 Interplanetary transients with particular signatures different from the normal solar wind have been observed behind interplanetary shocks and also without shocks.
S. Bravo, X. Blanco-Cano
doaj +1 more source
Observations of ionospheric flows and particle precipitation following a Sudden Commencement [PDF]
Annales Geophysicae, 2000 On May 4, 1998, at 0227 UT an interplanetary shock crossed the WIND spacecraft, and half an hour later a Sudden Commencement occurred. Coinciding with the Sudden Commencement a rapid intensification of the flux of particle precipitation into the ...
E. Nielsen, E. Nielsen, F. Honary
doaj +1 more source
PHYSICAL CHARACTERISTICS OF CORONAL REGION DRIVING OUT THE INTERPLANETARY SHOCK [PDF]
Journal of Astronomy and Space Sciences, 2008 Using the solar wind data of 2000 observed by ACE, We classified the interplanetary shock on basis of shock driver. We examined the physical properties of shock drivers such as the ratio of charge states(O7/O6) and thermal index(I_{th}). Most of 51 interplanetary shocks are driven by interplanetary coronal mass ejections(ICME; magnetic cloud and ejecta)
Su Yeon Oh, Yu Yi
openaire +2 more sources