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SUMMARY:Solar Particle Source Energy spectrum: Stochastic acceleration vs 
 Neutral Currnt Sheet acceleration vs Shock Wave acceleration
DTSTART;VALUE=DATE-TIME:20070704T180500Z
DTEND;VALUE=DATE-TIME:20070704T181700Z
DTSTAMP;VALUE=DATE-TIME:20260418T195213Z
UID:indico-contribution-352@cern.ch
DESCRIPTION:Speakers: Prof. PEREZ-PERAZA\, JORGE (INSTITUTO DE GEOFISICA\,
  UNIVERSIDAD NACIONAL AUTONOMA DE MEXICO)\nIt has been shown  in a series 
 of  works that some solar particle events  (SPE) \nare composed of two dif
 ferent relativistic  populations\, a Prompt  Component \n(PC) and a Delaye
 d Component (DC)\, each one with different energy spectrum \nbehavior.  Th
 e source spectra of the DC tend to be an inverse power law at the \nsteady
  state situation\, whereas the spectra of the PC are considerable \ndeviat
 ed from such a power law. Here we attempt to reproduce the  \nobservationa
 l  spectra of the PC  and the DC on terms of different scenarios:\n (i) DC
  acceleration from magnetic merging in a Magnetic Neutral Current Sheet  \
 n(MNCS).\n(ii) Stochastic acceleration of   an injected population pre-acc
 elerated in a MNCS.\n(iii) Stochastic acceleration with monoenergetic inje
 ction. \n(iv) Stochastic acceleration with monoenergetic injection\, while
  undergoing \nadiabatic   deceleration.\nWe contrast our results  with tho
 se assuming Shock Wave Acceleration.\nResults are illustrated for the case
  of the September 29\, 1989\, July 14\, 2000\, \nOctober 28\, 2003  and Ja
 nuary 20\, 2005  Ground Level Events (GLE`s).\n\nhttps://indico.nucleares.
 unam.mx/event/4/session/73/contribution/352
LOCATION:Merida\, Mexico Yucatan I (Fiesta Americana)
URL:https://indico.nucleares.unam.mx/event/4/session/73/contribution/352
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