For extremal black holes, one can construct simpler, limiting spacetimes that describe the

geometry near degenerate horizons. Since these spacetimes are known to have enhanced

symmetry, the limiting objects coincide for different solutions. We show that this occurs

for strongly magnetised Kerr-Newman solution, and how this is related to the Meissner

effect of expulsion of magnetic fields from extremal black holes.

geometry near degenerate horizons. Since these spacetimes are known to have enhanced

symmetry, the limiting objects coincide for different solutions. We show that this occurs

for strongly magnetised Kerr-Newman solution, and how this is related to the Meissner

effect of expulsion of magnetic fields from extremal black holes.

typ: | inproceedings |
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pages: | 2732 |

year: | 2017 |