Bremen 2017 – wissenschaftliches Programm
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GR: Fachverband Gravitation und Relativitätstheorie
GR 1: Schwarze Löcher 1
GR 1.4: Vortrag
Montag, 13. März 2017, 09:50–10:10, SFG 0140
The Meissner Effect of generic black holes — •Norman Gürlebeck1,2 and Martin Scholtz3 — 1ZARM, University of Bremen, Am Fallturm, 28359 Bremen — 2DLR Institute of Space Systems, 28359 Bremen, Germany — 3Institute of Theoretical Physics, Charles University, V Holesovickach 2, 180 00 Praha 8, Czech Republic
Black holes are important astrophysical objects describing an end state of stellar evolutionm, which are observed frequently. There are theoretical predictions that Kerr black holes with high spins expel magnetic fields. However, Kerr black holes are pure vacuum solutions, which do not include accretion disks, and additionally previous investigations are mainly limited to weak magnetic fields. We show here in full general relativity that generic rapidly spinning black holes including those deformed by accretion disks or other matter still expel even strong magnetic fields. Analogously to a similar property of superconductors, this property is called Meissner effect.