Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Brightening of an Accretion Disk Due to Viscous Dissipation of
  Gravitational Waves During the Coalescence of Supermassive Black Holes   Mergers of supermassive black hole binaries release peak power of up to
~10^57 erg/s in gravitational waves (GWs). As the GWs propagate through ambient
gas, they induce shear and a small fraction of their power is dissipated
through viscosity. The dissipated heat appears as electromagnetic (EM)
radiation, providing a prompt EM counterpart to the GW signal. For thin
accretion disks, the GW heating rate exceeds the accretion power at distances
farther than 10^3 Schwarzschild radii, independently of the accretion rate and
viscosity coefficient.

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The categories of this paper are: comp-gas
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The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
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The categories of this paper are: cs
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The categories of this paper are: q-bio
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The categories of this paper are: cmp-lg
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The categories of this paper are: cond-mat
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The categories of this paper are: nucl-th
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The categories of this paper are: math-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
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The categories of this paper are: solv-int
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The categories of this paper are: nlin
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The categories of this paper are: mtrl-th
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The categories of this paper are: plasm-ph