Density Scaling and Anisotropy in Supersonic MHD Turbulence

Details Density Scaling and Anisotropy in Supersonic MHD Turbulence Density Scaling and Anisotropy in Supersonic MHD Turbulence

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...206.3818b&link_type=abstract

American Astronomical Society Meeting 206, #38.18; Bulletin of the American Astronomical Society, Vol. 37, p.493

Statistics

Scientific paper

We study the statistics of density for supersonic turbulence in a medium with magnetic pressure larger than the gaseous pressure. Our simulations exhibit clumpy density structures, which contrast increases with the Mach number. At 10 Machs densities of some clumps are three orders of magnitude higher than the mean density. These clumps give rise to flat and approximately isotropic density spectrum corresponding to the random distribution of clumps in space. We claim that the clumps originate from our random, isotropic turbulence driving. When the contribution from those clumps is suppressed by studying logarithm of density, the density statistics exhibit scale-dependent anisotropy consistent with the models where density structures arise from shearing by Alfvén waves. It is noteworthy that originally such models were advocated for the case of low-Mach, nearly incompressible turbulence.

Affiliated with

Also associated with

No associations

Rating

Density Scaling and Anisotropy in Supersonic MHD Turbulence does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Density Scaling and Anisotropy in Supersonic MHD Turbulence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Density Scaling and Anisotropy in Supersonic MHD Turbulence will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1686733