Mean field theory and general relativistic black holes

We review the basics of a newly developed mean field theory of relativistic gravitation. A particularly simple coarse graining of the Schwarzschild space–time is presented as an example. We then use this example to discuss current and near future observations of Sgr A ∗ . To cite this article: C. Chevalier, F. Debbasch, C. R. Physique 7 (2006).