Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Kappa-Mechanism Excitation of Retrograde Mixed Modes in B-Type Stars   The stability of retrograde mixed modes in rotating B-type stars is
investigated. It is found that these modes are susceptible to kappa-mechanism
excitation, due to the iron opacity bump at log T ~ 5.3. The findings are
discussed in the context of the pulsation of SPB and Be stars.

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The categories of this paper are: chem-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
2
The categories of this paper are: math
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The categories of this paper are: cmp-lg
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The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
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The categories of this paper are: hep-th
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The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
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The categories of this paper are: funct-an
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The categories of this paper are: patt-sol
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The categories of this paper are: mtrl-th
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex