New physics Herbig Haro energy systems acting as Star- galaxy-dwarf pressure cookers and even as gas creators.

According to Quantum FFF Theory ( Function Follows Form) black holes of all sizes tend to form twin systems called Herbig Haro systems, by a new physics ZPE ( Zero Point Energy) propulsion system.
see for ZPE below:

Self propulsion and pairing process of new physics black holes, to form Herbig Haro systems with star ( galaxy or dwarf) formation in between.

see also:
https://www.facebook.com/leo.vuyk
http://vixra.org/author/leo_vuyk

NOT only the dual galaxy anchor black holes produce gas, or all the smaller supernova BHs, even the central merger black hole!
"Black hole hidden within its own exhaust.
ALMA image of the central region of galaxy NGC 1068
https://www.sciencedaily.com/releases/2016/09/160915120520.htm 
"But like any engine, a black hole can also emit exhaust."
That exhaust, astronomers discovered, is the likely source of the torus of material that effectively obscures the region around the galaxy's supermassive black hole from optical telescopes"
.