3D AMR simulations of the evolution of the diffuse gas cloud G2 in the Galactic Centre

TL;DR

This paper uses 3D adaptive mesh refinement hydrodynamical simulations to investigate the nature, evolution, and potential origins of the diffuse gas cloud G2 near the Galactic Centre, suggesting it may result from stellar wind interactions.

Contribution

It introduces detailed 3D hydrodynamical simulations to explore G2's evolution and supports the stellar wind interaction hypothesis as its origin.

Findings

A starting point within the young star disc is favored by observations.

Stellar wind interactions are a plausible origin for G2.

Simulations help constrain G2's future evolution.

Abstract

With the help of 3D AMR hydrodynamical simulations we aim at understanding G2's nature, recent evolution and fate in the coming years. By exploring the possible parameter space of the diffuse cloud scenario, we find that a starting point within the disc of young stars is favoured by the observations, which may hint at G2 being the result of stellar wind interactions.