Journal
ASTROPHYSICAL JOURNAL LETTERS
Volume 722, Issue 1, Pages L110-L113Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2041-8205/722/1/L110
Keywords
ISM: kinematics and dynamics; magnetohydrodynamics (MHD); turbulence
Categories
Funding
- NSF [AST-0808118]
- Center for Magnetic Self-Organization [LA-UR 10-05945]
- IceCube project
Ask authors/readers for more resources
The search of ways to generalize the theory of strong MHD turbulence for the case of non-zero cross-helicity (or energy imbalance) has attracted considerable interest recently. In our earlier publications, we performed three-dimensional numerical simulations and showed that some of the existing models are inconsistent with numerics. In this Letter, we focused our attention on low-imbalance limit and performed new high-resolution simulations. The results strongly suggest that in the limit of small imbalances we smoothly transition to a standard Goldreich-Sridhar balanced model. We also claim that the Perez-Boldyrev model that predicts the same nonlinear timescale for both components due to the so-called dynamic alignment strongly contradicts numerical evidence.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available