173 citations · 479 across the 13 of their papers we have counts for
4 papers · 2 filters
What can we infer about the underlying physics from burst distributions observed in an RMHD simulation ?
N. W. Watkins, S. Oughton, M. P. Freeman
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…
Ambiguities in Determination Of Self-Affinity in the AE-index Time Series
N. W. Watkins, M. P. Freeman, C. S. Rhodes +1
The interaction between the Earth's magnetic field and the solar wind plasma results in a natural plasma confinement system which stores energy. Dissipation of this energy through…
Testing the SOC hypothesis for the magnetosphere
N. W. Watkins, M. P. Freeman, S. C. Chapman +1
As noted by Chang, the hypothesis of Self-Organised Criticality provides a theoretical framework in which the low dimensionality seen in magnetospheric indices can be combined with…
Power law burst and inter-burst interval distributions in the solar wind: turbulence or dissipative SOC ?
M. P. Freeman, N. W. Watkins, D. J. Riley
We calculate for the first time the probability density functions (PDFs) P of burst energy e, duration T and inter-burst interval tau for a known turbulent system in nature. Bursts…