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A SOLAR FLARE MODEL IN BETWEEN MHD AND CELLULAR AUTOMATON* Heinz Isliker1
 

Summary: A SOLAR FLARE MODEL IN BETWEEN MHD AND CELLULAR AUTOMATON*
Heinz Isliker1
, Anastasios Anastasiadis2
and Loukas Vlahos1
1
Section of Astrophysics, Astronomy and Mechanics, Department of Physics, University of
Thessaloniki, GR-54006, Thessaloniki, GREECE
2
Institute for Space Applications and Remote Sensing, National Observatory of Athens,
GR-15236 Palaia Penteli, GREECE
KEY WORDS: Sun Solar Flares MHD
ABSTRACT
The last decade several cellular automata (CA) models have been developed in order to explain the
solar flare statistics derived from observations. These models simulate the storage/release process
using simple evolution rules, neglecting the details of the processes. The main advantage of this
approach is the treatment of a large number of elementary energy release events (avalanches) and the
reproduction of the observed solar flare statistics. On the other hand the energy release process has
been modeled for years using MHD numerical simulations. In the MHD approach the magnetic
reconnection (the energy release process) is simulated in detail, but it fails to treat a large number of
reconnection events, which leads to poor statistics for comparison to solar flares. We present here

  

Source: Anastasiadis, Anastasios - Institute for Space Applications and Remote Sensing, National Observatory of Athens

 

Collections: Physics