What can we infer about the underlying physics from burst distributions observed in an RMHD simulation ?
Astrophysics
2009-10-31 v2
Abstract
We determine that the sizes of bursts in mean-square current density in a reduced magnetohydrodynamic (RMHD)simulation follow 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.
Cite
@article{arxiv.astro-ph/0011358,
title = {What can we infer about the underlying physics from burst distributions observed in an RMHD simulation ?},
author = {N. W. Watkins and S. Oughton and M. P. Freeman},
journal= {arXiv preprint arXiv:astro-ph/0011358},
year = {2009}
}
Comments
In press, Planetary and Space Science. Proceedings of a session at European Geophysical Society General Assembly, Nice, 2000