Würzburg 2018 – scientific programme

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GR: Fachverband Gravitation und Relativitätstheorie

GR 11: Black Holes

GR 11.4: Talk

Thursday, March 22, 2018, 15:00–15:20, NW-Bau - HS3

Light propagation near a black hole distorted by an external quadrupole moment — •Efthimia Deligianni — ZARM, Universität Bremen

For isolated and stationary black holes analytical descriptions of the shadow already exist. Surrounding such a black hole with an external matter distribution, e.g. an external galaxy, leads to deformation of the spacetime -- we speak of distorted black holes. Consequently, the shadow of such black holes deviates from the Schwarzschild- or Kerr-case.

In this talk I will present our progress in analytically describing this distorted shadow. In particular, I will discuss the photon region of a black hole under the influence of an external quadrupolar gravitational field.