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Old April 17th 09, 05:56 PM posted to alt.astronomy
BradGuth
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Posts: 21,544
Default Which Comes First: Galaxy or Black Hole?

On Apr 16, 7:35*pm, Double-A wrote:
"Do galaxies form first and then a black hole springs up in the
center, or possibly, do galaxies form around an already existing black
hole?"

“The implication is that the black holes started growing first.”

http://www.universetoday.com/2009/01...st-galaxy-or-b...

So, where does the matter come from that forms around the black hole
and creates the galaxy? *Does it just condense out of energy? *Does
the black hole somehow stress space to cause it to condense into
matter? *Or does it just gather it from the extremely sparse
intergalactic void?

Double-A


The age old chicken or egg thing, of whichever came first doesn't
really matter to 99.9999% of humanity or any part of our terrestrial
environment.

I favor that it takes a pair of black holes to start the process of
creating a star. Therefore, the cosmic molecular stuff and perhaps
then black holes have to exist first.

~ BG