Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the minimum period of uniformly rotating meutron stars   We show that the neutron star minimum period of rotation is determined, for
causal equations of state, by the maximum value of the relativistic
(compactness) parameter 2GM/Rc^2, allowed by causality for static neutron
stars, 0.7081, and by the largest measured mass of a neutron star. The relation
between these three quantities, resulting from the extrapolation of the
empirical formulae of Lasota et al. (1996), yields the minimum period of 0.288
ms, only 2% higher than an absolute lower bound obtained in extensive exact
numerical calculations of Koranda et al. (1997).

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The categories of this paper are: quant-ph
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The categories of this paper are: adap-org
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The categories of this paper are: gr-qc
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The categories of this paper are: supr-con
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The categories of this paper are: atom-ph
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The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
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The categories of this paper are: chem-ph
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The categories of this paper are: funct-an
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The categories of this paper are: acc-phys
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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: nlin
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The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
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The categories of this paper are: hep-th