Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gyroscope precession along unbound equatorial plane orbits around a Kerr
  black hole   The precession of a test gyroscope along unbound equatorial plane geodesic
orbits around a Kerr black hole is analyzed with respect to a static reference
frame whose axes point towards the "fixed stars." The accumulated precession
angle after a complete scattering process is evaluated and compared with the
corresponding change in the orbital angle. Limiting results for the
non-rotating Schwarzschild black hole case are also discussed.

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The categories of this paper are: econ
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: plasm-ph
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The categories of this paper are: nucl-ex
2
The categories of this paper are: math
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The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio