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GR: Fachverband Gravitation und Relativitätstheorie

GR 5: Relativistic astrophysics I

GR 5.2: Hauptvortrag

Mittwoch, 21. März 2018, 11:45–12:30, NW-Bau - HS3

Accretion-Driven Growth of Super-Massive Black Holes — •Wolfgang J. Duschl — Astrophysik Kiel, Christian-Albrechts-Universität zu Kiel, Leibnizstr. 15, 24118 Kiel, Germany

The first super-massive black holes (SMBHs) with masses of the order of a billion solar masses in the nuclei of galaxies are observed at redshifts of 7.5, corresponding to an age of the Universe of around 700 million years. In my talk, I will first show how such large amounts of mass can be accreted into black holes within sufficiently short periods of time, and will, in particular, discuss the importance of self-gravity of the accreting material for a sufficiently fast accretion. The second part will be devoted to the question of how in the near future details of this accretion process can be used as tracers of physics in strong gravitational fields.