Talk detail

Participant	Hejda, Filip
Institution	Institute of Theoretical Physics, Faculty of Mathematics and Physics, Charles University in Prague - V Holesovickach 2 - Praha - Praha 8 - Czech Republic

Session	ES3	Accepted		Order	Time
Talk	Oral abstract	Title	Extremal Black Holes in Strong Magnetic Fields: Near-Horizon Geometries and Meissner Effect
Coauthors
Abstract	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 physical Meissner effect of expulsion of magnetic fields from extremal black holes. Another example of coinciding near-horizon limits involves black holes with NUT charge and with external electric field.
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