Past activity of Sgr A* is unlikely to affect the local cosmic-ray spectrum up to the TeV regime

Martin Fournier, Jérémy Fensch, Benoît Commerçon

The presence of kiloparsec-sized bubble structures in both sides of the Galactic plan suggests active phases of Sgr A${}^{\star }$, the central supermassive black hole of the Milky-Way…