What can we infer about the underlying physics from burst distributions observed in an RMHD simulation?

We determine that the sizes of bursts in mean-square current density in a reduced magnetohydrodynamic (RMHD) simulation follow a power-law probability density function (PDF). The PDFs for burst durations and waiting time between bursts are clearly not exponential and could also be power-law. This suffices to distinguish their behaviour from the original Bak et al. sandpile model which had exponential waiting time PDFs. However, it is not sufficient to distinguish between turbulence, some other SOC-like models, and other red noise sources.

Details

Publication status:
Published
Author(s):
Authors: Watkins, N.W., Oughton, S., Freeman, M.P. ORCIDORCID record for M.P. Freeman

On this site: Mervyn Freeman
Date:
1 January, 2001
Journal/Source:
Planetary and Space Science / 49
Page(s):
1233-1237
Digital Object Identifier (DOI):
https://doi.org/10.1016/S0032-0633(01)00064-2