E-print can be found at https://arxiv.org/abs/1909.05534 https://arxiv.org/abs/1909.05534 . Some years ago something similar was found in the form of Fermi bub

E-print can be found at https://arxiv.org/abs/1909.05534 https://arxiv.org/abs/1909.05534 . Some years ago something similar was found in the form of Fermi bubbles; a discovery given the Bruno Rossi Prize. The difference is the frequencies that the structures were found and their size. Fermi bubbles were identified by γ-ray imagining and are far more massive (many thousands of light years in size); both put together makes them far more energetic as well. An interesting part with this discovery is the correspondence between radio and X-ray emissions in this bipolar radio structure. The radio bubbles appear to exactly bound the plasma detected using X-rays.