Extended cellular automaton models of solar flare occurrence
K.P. Macpherson 1 and
A.L. MacKinnon 2
Received 13 August 1998 / Accepted 31 August 1999
In a previous study, we proposed a class of stochastic cellular automaton models for the occurrence of solar flares. `Flaring elements' of a deliberately unspecified nature were allowed to interact. Investigation of a 1-D version of the model, capable of analytical description, conflicted in detail with observations but indicated the qualitative success of such a picture. In this extended study, we investigate the consequences of relaxing various assumptions present in the initial study. In this way we can build up a family of models each producing a better match with the observations. From these results we can say which features control the power-law indices obtained from self-organising models of flare occurrence. The sorts of constraints this type of modelling produces will also have to be satisfied by more physically detailed pictures.
Key words: Sun: activity Sun: flares Sun: magnetic fields Sun: X-rays, gamma rays
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This article contains no SIMBAD objects.
© European Southern Observatory (ESO) 1999
Online publication: October 14, 1999