Black Hole Spewing Energy

dragoness.ai points to this story at space.com about some exciting news for black hole enthusiasts, writing "The scientists had a chance for the first time in history to observe energy coming out of a black hole."

Comments

original NASA press release

[rakerman]

The original NASA science news release has way cooler video and audio about the black hole.

Re:Hawking

[Yazeran]

You are absolutely right, but Hawking radiation cannot transfer huge energies over short time. The effect of Hawking radiation is also scales inversely with the mass of the black hole, as the gravitational gradient is steeper near a small black hole than near a big one.

Comparing Hawking radiation and this new magnetically induced energy transfer (if it exsists) is like comparing a candle light to the sun, Both create light but with different effect.

Having discovered this method of energy transfer in the space close to a black hole might also be the key to explaining the huge energy jets observed from the centers of some galaxies (This is also mentioned in the original NASA article).

Yours Yazeran

Plan: To go to Mars one day with a hammer.

Re:Hawking

[krlynch]

Except for Hawking radiation

Actually, no. The quote was: "Never before have we seen energy extracted from a black hole". Since we have never seen the Hawking radiation emitted by any known black hole, this statement is true (we've also never seen energy extraction occur by the Penrose process); the Hawking temperature of any black hole currently observable would be lower than the cosmic background radiation temperature, and certainly orders of magnitude below the black hole's local thermal environment, that we would never have a prayer to observe the HR.