A STELLAR WIND ORIGIN FOR THE G2 CLOUD: THREE-DIMENSIONAL NUMERICAL SIMULATIONS

@article{DeColle2014ASW,
title={A STELLAR WIND ORIGIN FOR THE G2 CLOUD: THREE-DIMENSIONAL NUMERICAL SIMULATIONS},
author={Fabio De Colle and Alejandro C. Raga and Flavio F. Contreras‐Torres and Juan Claudio Toledo-Roy},
journal={The Astrophysical Journal Letters},
year={2014},
volume={789}
}
• Published 4 June 2014
• Physics
• The Astrophysical Journal Letters
We present three-dimensional, adaptive mesh refinement simulations of G2, a cloud of gas moving in a highly eccentric orbit toward the galactic center. We assume that G2 originates from a stellar wind interacting with the environment of the Sgr A* black hole. The stellar wind forms a cometary bubble which becomes increasingly elongated as the star approaches periastron. A few months after periastron passage, streams of material begin to accrete on the central black hole with accretion rates  M…

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