Rogue SEP Events: Modeling

Details Rogue SEP Events: Modeling Rogue SEP Events: Modeling

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001icrc....8.3318k&link_type=abstract

Proceedings of the 27th International Cosmic Ray Conference. 07-15 August, 2001. Hamburg, Germany. Under the auspices of the Int

Physics

6

Scientific paper

Rogue events (see Kallenrode and Cliver, 2001) are associated with multiple shocks and CMEs. We present a numerical model based on the focused transport equation that incorporates shocks as moving particles sources and magnetic clouds as transient modifications of the interplanetary focusing length. This model allows to simulate the effect of pairs of CMEs/shock on particle populations. Special attention is paid to pairs of converging shocks which are believed to play an important role in the formation of large events such as the August 72 SPE or the Bastille day event. We find that (a) the magnetic cloud following the leading shock is of utmost importance for the creation of high particle intensities, (b) the shocks need not to converge to create an intensity enhancement, and (c) the trailing cloud is required to reduce intensities after the passage of the shock pair.

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