Spectral Slope and Kolmogorov Constant of MHD Turbulence
Spectral Slope and Kolmogorov Constant of MHD Turbulence
The spectral slope of strong MHD turbulence has recently been a matter of controversy. While the Goldreich-Sridhar model predicts a $\ensuremath{-}5/3$ slope, shallower slopes have been observed in numerics. We argue that earlier numerics were affected by driving due to a diffuse locality of energy transfer. Our highest-resolution simulation (${3072}^{2}\ifmmode\times\else\texttimes\fi{}1024$) …