Invited Talk - Splinter BlackHoles

Wednesday, 15 September 2021, 10:30   (virtual BH)

Relativistic disc models and black holes

Reinhard Meinel
Friedrich Schiller University Jena

Although general relativistic disc models are not relevant for modelling the large scale structure of galaxies like the Milky Way and for related investigations on dark matter to explain the observed rotation curves (the Newtonian approximation is by far sufficient for this purpose), they are of interest as simple models of rotating bodies that permit quasi-stationary (parametric) transitions to black holes. This was shown rigorously for uniformly rotating discs of dust which lead to an extreme Kerr black hole in a well-defined parameter limit. Several possible generalizations will be discussed in the talk.