Extended cellular automaton models of solar flare occurrence

Details Extended cellular automaton models of solar flare occurrence Extended cellular automaton models of solar flare occurrence

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...350.1040m&link_type=abstract

Astronomy and Astrophysics, v.350, p.1040-1050 (1999)

Astronomy and Astrophysics

Astrophysics

8

Sun: Activity, Sun: Flares, Sun: Magnetic Fields, Sun: X-Rays, Gamma Rays

Scientific paper

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.

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