Comments on: Black Holes Supply Lifeblood for Galaxies

By: mikey

mikey — Sun, 07 Dec 2008 12:17:47 +0000

Yes, exactly. And without getting too technical, I'd point to Hollywood as the best example of your explanation.

By: Naoviotaire

Naoviotaire — Thu, 20 Nov 2008 05:00:51 +0000

How does slowing the formation of new stars help to stabilize a galaxy? Is it that too many stars forming too rapidly crowd up, or expend the galactic well far too quickly?

By: Joe

Joe — Wed, 19 Nov 2008 17:23:17 +0000

thanks for the thoughful reply…

By: Aodhhan

Aodhhan — Wed, 19 Nov 2008 12:45:57 +0000

Joe,
Gentler probably wasn't the best choice of words, but what is meant by this, is the energy released in this fashion is rhythmic and predictable… instead of just sporadic, unknown and unpredictable. If you were anywhere near it without knowledge of how it works you certainly would believe it was something violent, since a huge amount of energy is being 'pumped' out.

True once something is within the event horizon of a black hole, it isn't escaping. However, the black hole itself does resonate a lot of energy away from itself, some things moving near the speed of light. Since it is from the power of the black hole itself, it is able to boost it outside of its own event horizon and out to space… which displays just how energetic and powerful a super massive black hole is.

By: pantzov

pantzov — Wed, 19 Nov 2008 07:06:07 +0000

one more reason to be fascinated by these strange objects.

By: john

john — Wed, 19 Nov 2008 06:54:04 +0000

I like that the big demon at the centre of galaxies does do good things too. Eqilibrium makes sense, otherwise we might all end up with a lot less time to enjoy.

By: Calvin

Calvin — Wed, 19 Nov 2008 00:35:31 +0000

Where does this gas come from? Stars?

By: Joe

Joe — Tue, 18 Nov 2008 22:48:13 +0000

No… but I'll be sure to look it up.

Thanks for the info.

Joe

By: Bill

Bill — Tue, 18 Nov 2008 22:22:56 +0000

Can you say "resonant electric circuit"?

By: Joe

Joe — Tue, 18 Nov 2008 22:09:02 +0000

I'm confused, which is not unusual, but this article states that the gentle and rhythmic fluctuations of black holes heat the galaxy whereas the next article states that the violent flares result simply in hot gases being stretched around the black hole since they do not obtain escape velocity. Does this seem to be contradictory?

Joe

By: sps

sps — Tue, 18 Nov 2008 22:08:01 +0000

It's the anthropic principle. It is because it is, and if it was not, then we wouldn't be hear to not know about it.

By: LLDIAZ

LLDIAZ — Tue, 18 Nov 2008 21:24:36 +0000

So blackhole's burp!
Thats cool..