Oxford University Press (OUP), Monthly Notices of the Royal Astronomical Society, 4(488), p. 5802-5810, 2019
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ABSTRACT The origin of the molecular clouds orbiting SgrA* is one of the most debated questions about our Galactic Centre. Here, we present the hydrodynamic simulation of a molecular cloud infalling towards SgrA*, performed with the adaptive-mesh-refinement code ramses. Through such simulation, we propose that the circumnuclear disc and the +20 km s−1 cloud originated from the same tidal disruption episode, occurred less than 1 Myr ago. We also show that recent star formation is to be expected in the +20 km s−1 cloud, as also suggested by recent observations.