Conference talk S. Markoff

S. Markoff
Anton Pannekoek, UvA, Amsterdam
Our Galactic supermassive black hole Sgr A*: the ideal testbed for theories of accretion/gravity and black hole life cycles

Sgr A* is the weakest accreting black hole we have ever observed, yet it is not a particularly unique object.   We know that the majority of galaxies harbor nuclei more like Sgr A* than active galactic nuclei (AGN), so our Galactic center represents a dominant stage in the "typical"  life cycle of a spiral galaxy.  I will present a variety of different studies focusing on Sgr A*, showing how we can place it into context with both the AGN class in general as well as quiescent black holes at the stellar-mass scale.  Along the way I will discuss our current understanding of accretion around this source, and how we are using these constraints to build towards new tests of strong gravity effects, and a better understanding of the build up of particle acceleration processes. 

Click here for the presentation.


Academy Building
Wednesday, April 4, 2012 - 14:00 - 14:50