Backwards Black Holes Might Make Bigger Jets

Going against the grain may turn out to be a powerful move for black holes. New research suggests supermassive black holes that spin backwards might produce more ferocious jets of gas. The results have broad implications for how galaxies change over time.
"A lot of what happens in an entire galaxy depends on what's going on in the minuscule central region where the black hole lies," said theoretical astrophysicist David Garofalo of NASA's Jet Propulsion Laboratory in Pasadena, Calif. Black holes are immense distortions of space and time with gravity that is so great, even light itself cannot escape.
The black holes are surrounded and nourished by disks of gas and dust, called accretion disks. Powerful jets stream out from below and above the disks like lasers, and fierce winds blow off from the disks themselves.

The black holes can spin either in the same direction as the disks, called prograde black holes, or against the flow -- the retrograde black holes. For decades, astronomers thought that the faster the spin of the black hole, the more powerful the jet. But there were problems with this "spin paradigm" model.

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For example, some prograde black holes had been found with no jets. Garofalo and his colleagues have been busy flipping the model on its head. In previous papers, they proposed that the backward, or retrograde, black holes spew the most powerful jets, while the prograde black holes have weaker or no jets.

Garofalo and his colleagues have been busy flipping the model on its head. In previous papers, they proposed that the backward, or retrograde, black holes spew the most powerful jets, while the prograde black holes have weaker or no jets. The new study links the researchers' theory with observations of galaxies across time, or at varying distances from Earth.

They looked at both "radio-loud" galaxies with jets, and "radio-quiet" ones with weak or no jets. The term "radio" comes from the fact that these particular jets shoot out beams of light mostly in the form of radio waves. The results showed that more distant radio-loud galaxies are powered by retrograde black holes, while relatively closer radio-quiet objects have prograde black holes. According to the team, the supermassive black holes evolve over time from a retrograde to a prograde state.

The scientists say that the backward black holes shoot more powerful jets because there's more space between the black hole and the inner edge of the orbiting disk.
Jets and winds play key roles in shaping the fate of galaxies. Some research shows that jets can slow and even prevent the formation of stars not just in a host galaxy itself, but also in other nearby galaxies.

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[edit on Tue Jun 1 2010 by Jbird]

Black holes of infinite gravity spit matter out in jets.

Obviously this is a perfectly logical theory. There can be no other possible explanation of why we see galactic jets in space. It must be due to a gigantic hole of infinite gravity.

It's hard to mock this theory because it's so retarded the English language doesn't quite have a word to mock it adequately.

I would say "insane" or "ridiculous" or "delusional" but I feel those words just don't have the right amount of panache to adequately describe such nonsensical theories.



Oh by the way, galactic jets and double radio sources were predicted by plasma cosmologists before their discovery. In fact, one can create a double radio source jet in the lab with a plasma focus device quite easily, which is what galactic jets are on a large scale.

- no black holes of infinite gravity shooting out matter are required to explain them.