Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Compressible MHD Turbulence: Mode Coupling, Anisotropies and Scalings   Compressible turbulence, especially the magnetized version of it,
traditionally has a bad reputation with researchers. However, recent progress
in theoretical understanding of incompressible MHD as well as that in
computational capabilities enabled researchers to obtain scaling relations for
compressible MHD turbulence. We discuss scalings of Alfven, fast, and slow
modes in both magnetically dominated (low $\beta$) and gas pressure dominated
(high $\beta$) plasmas. We also show that the new regime of MHD turbulence
below viscous cutoff reported earlier for incompressible flows persists for
compressible turbulence. Our recent results show that this leads to density
fluctuations. New understanding of MHD turbulence is likely to influence many
key astrophysical problems.

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The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
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The categories of this paper are: adap-org
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The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
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The categories of this paper are: solv-int
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: stat
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The categories of this paper are: q-fin
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The categories of this paper are: math
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The categories of this paper are: quant-ph