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smurficus103 t1_ixm06r0 wrote

Reply to comment by PingouinMalin in For the first time, astronomers have observed how certain supermassive black holes launch jets (outflows of ionised matter) of high-energy particles into space by The_R3venant

Unless the magnetic force generated within the event horizon is strong enough to force stuff out against the strength of gravity

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NOLA_Tachyon t1_ixmqbzv wrote

That’s impossible. The event horizon is the point at which space falls towards the singularity faster than light speed. For anything to come back out, it would have to move faster than light. For any matter as we know it to move faster than light, it would require infinite energy.

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smurficus103 t1_ixn5x7i wrote

You're right, i tend to think in more classical physics and not GR, but it's still fun to contemplate... ya know, could some magnetic generation inside of a black hole rival the force of gravity? Particularly if you don't think of these things as singularities and instead objects with a bunch of stuff happening inside that collectively are enough local energy density to always bend light into orbits

Dont get too excited by this article, they say it's probably a coincidence at the end of the article https://www.forbes.com/sites/startswithabang/2020/06/25/shocking-new-observation-merging-black-holes-really-can-emit-light/?sh=35cd33a417bf

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PingouinMalin t1_ixm0opk wrote

How would that work, considering even light cannot escape that pull and it is the fastest "thing" possible ?

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smurficus103 t1_ixm1un7 wrote

I guess imagine the black hole as something larger than a star, spinning fast, with violent collisions from stars it eats, generating a huge magnetic field, like a dynamo, and burping out a bit of xrays? It's kinda fun, but, yeah, who knows.

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PingouinMalin t1_ixm2yt9 wrote

To be fair, everything about the universe, it's scale and the kind of things like black holes fascinate me but also break my understanding of things.

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ACSpeed t1_ixmganx wrote

The paper states the following "particles become energized over a limited volume, for example at a shock front, and then advect or diffuse away from that region" which indicates these particles are energised before entering the event horizon so it doesn't appear to be a process that occurs within the EV. Nothing is being "ejected", it's being forced away.

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iprocrastina t1_ixp2te0 wrote

IANAP but sounds like what they're saying is if anything manages to get knocked out of a black hole's orbit while traveling at relativistic speeds then that means it has to have an enormous amount of energy to fight out of that gravitational well.

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