The origin of “Ultra Diffuse Galaxies” ( UDGs) in
galaxy cluster centers, according to Quantum FFF Theory, is assumed to be based
on very stable concentrations of multiple external electric dark matter black
hole (EDMBH) configuration located around the UDGs.
The start of such a UDG galaxy we may even observe
inside the Galaxy contracting cluster Abell 520.
see: https://www.researchgate.net/publication/338750176_The_Origin_of_Ultra_Diffuse_Galaxies_UDGs_2_2017
Supernova Black hole creation with small Herbig Haro systems inside a nebula.
