2x Merging Galaxies as giant second generation Herbig Haro systems

Astronomers have found an enormous, glowing blob of gas in the distant universe, with no obvious source of power for the light it is emitting. Called an "enormous Lyman-alpha nebula" (ELAN), it is the brightest and among the largest of these rare objects, only a handful of which have been observed.

Explanation according to Quanum FFF Theory: Second generation giant dual black hole Herbig Haro system assumed to be found inside a proto cluster, possibly based on two growing central Black holes according to Quantum FFF Theory..   Zheng Cai, a postdoctoral fellow at UC Santa Cruz, said that they found the enormous nebula in the middle of a protocluster, near the peak density.
see : http://www.scienceworldreport.com/articles/57554/20170304/glowing-blob-mysterious-new-discovery-universe.htm

Glowing blob in distant galaxy puzzles scientists. (Image for representation only.) 
(Photo : NASA.gov Video/YouTube screen

Two merger galaxies with large central black holes seem to be able to create a dual second generation BH Herbig Haro system here.

see also: http://news.ucsc.edu/2017/02/mammoth-nebula.html
MAMMOTH-1 is an extended blob of gas in the intergalactic medium called an enormous Lyman-alpha nebula (ELAN). The color map and contours denote the surface brightness of the nebula, and the red arrows show its estimated spatial extent. (Image credit: Figure 2 of Cai et al., Astrophysical Journal)