A recent radio image of a young stellar system showing two SABHs connected by two jets (later Fermi bubbles)
Below sketches of the SABH of a stellar system, and creating and the repelling of all pair particles creating fermions at the Penrose-Q-FFF Trapped Space Horizon ( New Q-FFF Physics) Below: The white hole can become a Black Hole easely.
Also GABHs seem to be needed:(Milky Way and Andromeda)