Alexei G. Kritsuk, Sergey D. Ustyugov, Michael L. Norman, Paolo Padoan
Published 2009-02-18, updated 2009-05-18Version 2
We use three-dimensional simulations to study the statistics of supersonic turbulence in molecular clouds. Our numerical experiments describe driven turbulent flows with an isothermal equation of state, Mach numbers around 10, and various degrees of magnetization. We first support the so-called 1/3-rule of Kritsuk et al. 2007 with our new data from a larger 2048^3 simulation. We then attempt to extend the 1/3-rule to supersonic MHD turbulence and get encouraging preliminary results based on a set of 512^3 simulations. Our results suggest an interesting new approach to tackle universal scaling relations and intermittency in supersonic MHD turbulence.
Comments: 9 pages, 3 figures, corrected typos; ASTRONUM-2008 "Numerical Modeling of Space Plasma Flows", St. John, US Virgin Islands, June 2008, ASP Conf. Series, 406, 15-22 (2009); animations available at http://akpc.ucsd.edu/Isothermal/2048Ma6
Journal: ASP Conf. Series, 406, 15-22 (2009)
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