Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Photon Emission Near Extreme Kerr Black Holes   Ongoing astronomical efforts extract physical properties of black holes from
electromagnetic emissions in their near-vicinity. This requires finding the
null geodesics which extend from the near-horizon region out to a distant
observatory. In general these can only be found numerically. In this paper, for
the interesting special case of extremally spinning Kerr black holes, we use an
emergent near-horizon conformal symmetry to find near-superradiant geodesics
analytically.

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The categories of this paper are: quant-ph
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The categories of this paper are: supr-con
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The categories of this paper are: solv-int
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The categories of this paper are: stat
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-alg
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The categories of this paper are: physics
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-ex
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The categories of this paper are: alg-geom
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The categories of this paper are: nlin
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The categories of this paper are: math
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The categories of this paper are: hep-lat
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The categories of this paper are: math-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-ex