How Variable Massive Star Formation is Originated?
Or How different massive Stars and Galaxies are born?
According to Quantum FFF Theory, there is a direct relation between the virtual mass of both Black Hole Based Herbig Haro "Bowshocks" (Stellar Anchor Black Holes; (SABHs) and the maximum capacity to form stable stars in between the bowshocks.
If the star has reached its maximum mass, it is assumed to become unstable and will produce one or two smaller stars, which is the start of an open star cluster. (see image)
For galaxy forming, those massive stars has to go through a process of supernova black hole production and black hole pairing into NEW smaller Herbig Haro systems to for secondary stellar Anchor Black Holes ( SABHs)
Even our sun has two SABHs.( see image )
See: Astronomers View Cosmic Light Show of Star Formation.
Quote: "But, unlike stars like our ( small) Sun, astronomers know much less about how these enormous stars form".
https://scitechdaily.com/astronomers-view-cosmic-light-show-of-star-formation/
Even the sun is growing by contraction of gas clouds and spitting out so called "failed stars" see below.