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back to article Galactic pile-ups feed supermassive energy output

NASA's Swift satellite appears to have confirmed one reason why a small percentage of supermassive black holes throw out vastly elevated levels of energy: it's provoked by violent collisions between galaxies. NASA explains that one per cent of such black holes - weighing in at "between a million and a billion times the Sun's …

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No, no, no!

It's just god* turning the lights on and off !!!

* Insert deity of personal preference

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Title goes here

"10 billion times the Sun's energy"

But could it run a PC powerful enough to play Crysis?

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title

no

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Intergalactic pile-ups?!

Where there's blame there's a claim!

I would NOT like to be the insurance company for these, as no doubt there will be TV adverts for this very soon!

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Sound reasoning

Intergalactic pile-ups are why we need more average speed cameras, natch.

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When galaxies collide

I pity the poor aliens who once inhabited these galaxies. Or, if you will, the galaxians.

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I'm sure...

the swift bat will solve many problems and answer many questions

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Happy

holy collision, bat-man!

i'm already sorry i said that....

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hmmm x-rays, you say?

I wonder how they decided whether these photons they're looking at were x-rays instead of gamma rays. As I recall, the difference between the two is how they're made: gamma rays for chemical radioactive sources, x-rays for electric sources. They didn't get to "Colliding Galaxies" as a source for either...

But then, they're calling them "hard" and "soft," so perhaps they don't really care what the proper name is...

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Re : hmmm x-rays, you say?

Gamma are higher frequency than x-rays although there can be considerable overlap

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