3D AMR simulations of G2 as an outflow

We study the evolution of G2 in a Compact Source Scenario, where G2 is the outflow from a low-mass central star moving on the observed orbit. This is done through 3D AMR simulations of the hydrodynamic interaction of G2 with the surrounding hot accretion flow. A comparison with observations is done by means of mock position-velocity (PV) diagrams. We found that a massive (Ṁ _w = 5× 10^-7 M _⊙ yr^-1) and slow (v _w = 50 km s^-1) outflow can reproduce G2's properties. A faster outflow (v _w = 400 km s^-1) might also be able to explain the material that seems to follow G2 on the same orbit.