HR: 0800h
AN: SH31A-0231 [Abstracts]
TI: The effect of the magnetic topology of the Magnetic Clouds over the Solar Energetic Particle Events
AU: * Medina, J
EM: jose.medina@uah.es
AF: Space Research Group. Departamento de Fàsica. Universidad de
Alcalà¡., Ctra. Madrid-Barcelona, km 33,6., Alcala de Henares, Mad 28871, Spain
AU: Hidalgo, M
EM: miguel.hidalgo@uah.es
AF: Space Research Group. Departamento de Fàsica. Universidad de
Alcalà¡., Ctra. Madrid-Barcelona, km 33,6., Alcala de Henares, Mad 28871, Spain
AU: Blanco, J
EM: juanjo.blanco@uah.es
AF: Space Research Group. Departamento de Fàsica. Universidad de
Alcalà¡., Ctra. Madrid-Barcelona, km 33,6., Alcala de Henares, Mad 28871, Spain
AU: Rodriguez-Pacheco, J
EM: javier.pacheco@uah.es
AF: Space Research Group. Departamento de Fàsica. Universidad de
Alcalà¡., Ctra. Madrid-Barcelona, km 33,6., Alcala de Henares, Mad 28871, Spain
AB:
We have simulated the effect of the magnetic topology of the Magnetic Clouds (MCs) over the solar energetic
particle event (SEPe) fluxes (0.5-100 MeV) provided by solar flares. When a SEPe passes through a MC a
characteristic behaviour in the data corresponding to the ion and electron fluxes is observed: a depression after a
strong maximum of the flux. Using our cross-section circular and elliptical MC models we have tried to explain
that effect, understanding the importance of the topology of the MC. In sight of the results of the preliminary
analysis we conclude that the magnitude of the magnetic field seems not to play a significant role but the
helicoidal topology associated with topology of the MCs.
This work has been supported by the Spanish Comisión Internacional de Ciencia y Tecnologia
(CICYT), grant ESP2005-07290-C02-01 and ESP2006-08459.
This work is performed inside COST Action 724.
DE: 7513 Coronal mass ejections (2101)
DE: 7514 Energetic particles (2114)
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Fall Meeting