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arXiv · 1607.06028

Photon Emission Near Extreme Kerr Black Holes

Achilleas P. Porfyriadis·Yichen Shi·Andrew Strominger
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Abstract

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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BibTeXRIS

Achilleas P. Porfyriadis, Yichen Shi, Andrew Strominger. 2016-07-20. Photon Emission Near Extreme Kerr Black Holes. https://doi.org/10.1103/physrevd.95.064009

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