HR: 14:00h
AN: SM33B-05    [Abstracts]
TI: Stochastic Acceleration of particles in turbulent magnetic regions
AU: * DurandManterola, H
EM: hdurand_manterola@yahoo.com
AF: Universidad Nacional Autonoma de Mexico, Retorno 52 # 20 Col. Avante Coyoacan, Mexico City, DF 04460, Mexico
AB: The stochastic acceleration of particles is a recognized mechanism to energize particles in magnetospheres. In this work I have focused in develop an analytic model of the stochastic acceleration due to fluctuations of the magnetic field of small scale that shown to be extremely efficient accelerating. I show that with a stochastic force of 10e-15 N a proton can be accelerated from 0 to 10e3 eV in 8.49x10e-5 seconds, from 0 to 10e6 eV in 2.68 seconds, and from 0 to 10e8 eV in 40 minutes. Since the time in which this mechanism accelerates depends on the average force exerted by the fluctuations then it is possible that in very turbulent regions (e.g. shock waves, CMS, pulsars), larger energies can be reached in the same time.
DE: 2159 Plasma waves and turbulence
DE: 2199 General or miscellaneous
DE: 2756 Planetary magnetospheres (5443, 5737, 6033)
SC: SPA-Magnetospheric Physics [SM]
MN: 2007 Joint Assembly