Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Precession of neutrino-cooled accretion disks in gamma-ray burst engines   We study the precession of accretion disks in the context of gamma-ray burst
inner engines. With an accretion disk model that allows for neutrino cooling,
we evaluate the possible periods of disk precession and nutation due to the
Lense-Thirring effect. Assuming jet ejection perpendicular to the disk midplane
and a typical intrinsic time dependence for the burst, we find possible
gamma-ray light curves with temporal microstructure similar to what is observed
in some subsamples. We conclude that the precession and nutation of a
neutrino-cooled accretion disk in the burst engine might be responsible for
some events, especially those with a slow rise and a fast decay.

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The categories of this paper are: quant-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: atom-ph
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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: math
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The categories of this paper are: stat
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-lat
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The categories of this paper are: patt-sol
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The categories of this paper are: gr-qc
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The categories of this paper are: math-ph
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The categories of this paper are: bayes-an