What is the nature of accretion onto Sgr A*?
University of Toronto
The massive black hole at the centre of the MIlky Way is remarkably
dim for its mass, and efforts to understand this fact have led to
proposals of new flow classes involving convection, winds, and poor
electron coupling. I shall argue that the observational constraints
point to a solution which is unlike most of these proposals, but which
resembles simulations of "magnetically-frustrated" flows. These
simulations make additional predictions, concerning the time
dependence and rotational properties of the flow, which may be tested
against future observations.
|Date: ||Vendredi, le 20 novembre 2009|
|Lieu: ||Université Laval|
| ||Pavillon Alexandre-Vachon, Local 1661|
|Contact: ||Hugo Martel|