Research Accomplished

In our work, we propose the the scenario in which the wind from the IRS 13 E3 complex dominates. We estimated analytically the effective angular momentum of the accretion flow by analyzing the relative strength of the winds of the nearby donor stars. We analyze the pattern of accretion flow onto Sgr A$^*$ at distances of a fraction of a parsec, and found that the net angular momentum of this material is low but non-negligible. Since the resulting angular momentum is low we next apply the low angular momentum flow model which is expected to produce multi-transonic behavior with standing shocks. We show that for the estimated parameters of the flow in Sgr A* stationary solution do not exist and the flow pattern consist of a semi-stationary flow above a few Schwarzschild radii, and an unstable inner ring/torus.

So far, we restricted ourselves to study of our shocked accretion model using the post Newtonian pseudo-Schwarzschild framework, and our theoretical estimation matched reasonably well with observational data.