Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin and Quadrupole Couplings for High Spin Equatorial Intermediate
  Mass-ratio Coalescences   Intermediate mass-ratio coalescences are potential signals of ground-based
and space-based gravitational observatories. Accurate modeling of their
waveforms within general relativity can be achieved within black hole
perturbation theory including self-force and finite size effects. In this
paper, we present analytic results to the Teukolsky perturbation of equatorial
orbits in the near-horizon region of an extremely high spin black hole
including spin coupling and finite size effects at leading order in the high
spin limit while neglecting the self-force. We detail the critical behavior
occuring close to the smallest specific angular momentum, and we discuss
features of spin and quadrupole couplings.

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The categories of this paper are: nlin
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The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
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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: acc-phys
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The categories of this paper are: funct-an
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The categories of this paper are: comp-gas
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The categories of this paper are: q-bio
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-fin
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The categories of this paper are: bayes-an
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The categories of this paper are: physics
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The categories of this paper are: alg-geom