Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The nature of low T/|W| dynamical instabilities in differentially
  rotating stars   Recent numerical simulations indicate the presence of dynamical instabilities
of the f-mode in differentially rotating stars even at very low values of
$T/|W|$, the ratio of kinetic to potential energy. In this Letter we argue that
these may be shear instabilities which occur when the degree of differential
rotation exceeds a critical value and the f-mode develops a corotation point
associated with the presence of a continuous spectrum. Our explanation, which
is supported by detailed studies of a simple shell model, offers a
straightforward way of understanding all of the key features of these
instabilities.

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The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
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The categories of this paper are: eess
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The categories of this paper are: patt-sol
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The categories of this paper are: q-alg
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The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
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The categories of this paper are: q-fin
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-bio
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The categories of this paper are: chao-dyn
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The categories of this paper are: math-ph
18
The categories of this paper are: econ
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The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas