Speaker
Jorge Cuadra
(Universidad Católica de Chile)
Description
The infalling cloud G2 is in a Keplerian orbit with apocentre in a region populated by Wolf-Rayet stars. As such, its origin is likely associated with the mass lost by these stars. We present numerical simulations of the gas dynamics in the inner parsec of the Galaxy, including the stars that produce copious amounts of stellar winds, and the gravitational potential of SgrA*. As expected, wind-wind collisions create a number of cold, dense gas clumps, qualitatively similar to the observed cloud. From the simulations we present preliminary results on the mass and orbital distribution of the clouds that reach the black hole vicinity, and discuss how often an event such as the G2 infall occurs.
Author
Jorge Cuadra
(Universidad Católica de Chile)