Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rotation and Disc Accretion in Very Low Mass Stars and Brown Dwarfs   The regulation of angular momentum is one of the key processes for our
understanding of stellar evolution. In contrast to solar-mass stars, very low
mass (VLM) objects and brown dwarfs are believed to be fully convective. This
may lead to major differences of rotation and activity, since fully convective
objects may not host a solar-type dynamo. Here, we report on our observational
efforts to understand the rotational evolution of VLM objects.

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The categories of this paper are: math
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-alg
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The categories of this paper are: cs
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The categories of this paper are: chem-ph
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The categories of this paper are: q-fin
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The categories of this paper are: eess
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-ex
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The categories of this paper are: math-ph
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The categories of this paper are: nlin
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: stat
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The categories of this paper are: q-bio