By the triangle grouping (instead of dual Herbig Haro grouping) of the Dark Matter Black Hole splinters after the Big Bang nucleus explosion, buried in the centers of the very large Globular clusters. According to Quantum FFF Theory. (I name this: Triple Galaxy Anchor Black Holes: 3xGABHs)
see also:
https://www.sciencenews.org/article/dark-matter-mia-strange-galaxy
and:
https://arxiv.org/pdf/1803.10237.pdf
and:
https://www.researchgate.net/publication/320036172_Splitting_Dark_Matter_Black_Hole_Big_Bang_as_the_Origin_of_Ultra-Energetic-Cosmic-Rays-From_Far-Away
Interesting question: is the largest triangle located in the middle of the two smaller ones?
Below: 3C75, an example of a 3 tailed radio galaxy as the possible rare example of triple BH pairing?.
Example in Quantum FFF Theory, how BHs can split and pair to form stars and galaxies.