A Physical Mechanism for Self-Organization in Solar and Stellar Coronae: Theory and Observations

نویسندگان

  • P. A. Cassak
  • D. J. Mullan
چکیده

The existence of power law statistics in solar and stellar flares has prompted the suggestion that solar and stellar coronae are in a self-organized critical state, but the physical foundation of this theory is lacking. We present observational evidence from 107 flare events in 37 sun-like stars that solar and stellar coronae self-organize into a critical state set by a bifurcation in the dynamics of magnetic reconnection that initiates coronal eruptions. Subject headings: Sun: flares — Sun: corona — Sun: activity — stars: flare — stars: coronae — stars: activity

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تاریخ انتشار 2008