SomeKindOfAdult t1_jdxwxtl wrote on March 28, 2023 at 12:13 AM

Ethan Siegel (Starts With a Bang) gives a good explanation in his article about how some galaxies don't have supermassive black holes. (https://www.forbes.com/sites/startswithabang/2021/04/23/ask-ethan-why-doesnt-every-galaxy-have-a-supermassive-black-hole/?sh=55e747d23374)

>It’s an eminently reasonable thought that every galaxy in the Universe should have a supermassive black hole, especially considering that the processes that we think lead to their formation:

early, very massive stars form,
some go supernova and some directly collapse,
their remnants dynamically interact with the surrounding matter,
causing them to sink to the proto-galaxy’s center,
where they merge,
and then these “seeds” of supermassive black holes accrete matter and grow,
leading to what we observe today,

>ought to occur everywhere a galaxy is present.

So the answer is "sort of". While the super massive black hole isn't what holds the galaxy together, it may be that it was the seed that pulled the initial cloud of gas together to start the galaxy.

theroadlesstraversed t1_jdy2d3x wrote on March 28, 2023 at 12:53 AM

So like, super retardedly huge stars form after big bang. Star go boom, gases form clouds, cooling happens, electromagnetism makes elements form, clumps get big, some rocks and shit happen, some small boomies form, their reactions pull rocks and lava around them, "gravity" causes solar systems to form, all the while the original lite brights core is pulling stuff in and around itself... am I close?