851 citations · 1.8k across the 12 of their papers we have counts for
6 papers · 1 filter
Event-horizon-scale structure in the supermassive black hole candidate at the Galactic Centre
Sheperd Doeleman, Jonathan Weintroub, Alan E. E. Rogers +25
The cores of most galaxies are thought to harbour supermassive black holes, which power galactic nuclei by converting the gravitational energy of accreting matter into radiation (r…
The Cosmogony of Super-Massive Black Holes
Wolfgang J. Duschl, Peter A. Strittmatter
We report results of a project investigating the growth of super-massive black holes (BHs) by disk accretion. We find that the BH mass growth is quick enough to account for the inf…
Towards the Event Horizon - The Vicinity of AGN at Micro-Arcsecond Resolution
T. P. Krichbaum, D. A. Graham, W. Alef +18
We summarize the present status of VLBI experiments at 3 mm (86 GHz), 2 mm (129-150 GHz) and 1.3 mm (215-230 GHz). We present and discuss a new 3 mm VLBI map of M87 (Virgo A), whic…
Formation of Super-massive Black Holes
Wolfgang J. Duschl, Peter A. Strittmatter
We show that the rapid formation of super-massive black holes in quasars can indeed be understood in terms of major galaxy mergers followed by disk accretion. The necessary short d…
A Note on Hydrodynamic Viscosity and Selfgravitation in Accretion Disks
Wolfgang J. Duschl, Peter A. Strittmatter, Peter L. Biermann
We propose a generalized accretion disk viscosity prescription based on hydrodynamically driven turbulence at the critical effective Reynolds number. This approach is consistent wi…
Viscosity in Selfgravitating Accretion Disks
W. J. Duschl, Peter A. Strittmatter, Peter L. Biermann
We show that the standard model for geometrically thin accretion disks (alpha-disks) leads to inconsistencies if selfgravity plays a role. This problem arises from the parametrizat…