June 25, 2021
Prof. Eugen Radu

Affiliation: Aveiro University, Portugal<

Title: Static black holes with non-spherical horizons

Abstract: Static (single) black holes (BHs) in electrovacuum can only have an electric monopole, and they are necessarily spherically symmetric. We discuss two different mechanisms to circumvent this result. In the first case, we show that static BHs in AdS-electrovacuum can have an arbitrary electric multipole structure, and present explicit examples of static BHs with no continuous (spatial) symmetries. The second example consists in asymptotically flat scalarized BHs in a class of Einstein-Maxwell-scalar (EMS) models. The corresponding BHs bifurcate from the Reissner-Nordstrom BH trunk, forming [...]

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Past talks

  • June 18

    Prof. Theocharis Apostolatos, University of Athens, Greece

  • June 11

    Prof. Maria G. Dainotti, NAOJ, Japan and SSI, Colorado