What is the end-point of a black hole?

[The Sauce]

I know that black holes go around gobbling up everything in sight (kinda like Rosie O'Donnell) and it all gets smashed into the singularity adding to the gravitational pull (also like Rosie)...but what is the endpoint of a black hole? Does it eventually explode and become a new galaxy like the big bang?

 

[Brainonska511]

Black holes slowly "evaporate" 1 atom or so within a set interval, so eventually the matter that was sucked into the black hole will be redeposited into space.

 

[shortspanishguy]

Originally posted by: Brainonska511
Black holes slowly "evaporate" 1 atom or so within a set interval, so eventually the matter that was sucked into the black hole will be redeposited into space.

my mind collapses whenever I think about this stuff.

 

[Shawn]

Originally posted by: Brainonska511
Black holes slowly "evaporate" 1 atom or so within a set interval, so eventually the matter that was sucked into the black hole will be redeposited into space.

redeposited where?

 

[Mrvile]

Originally posted by: Brainonska511
Black holes slowly "evaporate" 1 atom or so within a set interval, so eventually the matter that was sucked into the black hole will be redeposited into space.

Is that seriously what happens?

 

[BrokenVisage]

Originally posted by: Brainonska511
Black holes slowly "evaporate" 1 atom or so within a set interval, so eventually the matter that was sucked into the black hole will be redeposited into space.

that sounds right, my guess as to what happens to any matter that is sucked into it is that it orbits inside the "belly" of the black hole so fast that its atoms are separated and they keep circling until the whole thing eventually evaporates

 

[spidey07]

I thought it spits it out as x-rays.

 

[AbAbber2k]

Hawking Radiation.

 

[OSX]

Originally posted by: Shawn

Originally posted by: Brainonska511
Black holes slowly "evaporate" 1 atom or so within a set interval, so eventually the matter that was sucked into the black hole will be redeposited into space.

redeposited where?

Outside a white hole?

 

[lozina]

you could always go jump in one to find out

 

[CKent]

Originally posted by: Mrvile

Originally posted by: Brainonska511
Black holes slowly "evaporate" 1 atom or so within a set interval, so eventually the matter that was sucked into the black hole will be redeposited into space.

Is that seriously what happens?

According to Stephen Hawking, yeah... kinda goes against the whole "Nothing escapes, not even light" thing, but the man's a genius so I guess he's right.

 

[dainthomas]

Originally posted by: spidey07
I thought it spits it out as x-rays.

X-rays can't escape any more than visible light (from beyond the event horizon anyway).

IIRC, the process has something to do with quantum mechanics and tunneling, but it's been a while since college physics.

 

[tranceport]

Originally posted by: OSX

Originally posted by: Shawn

Originally posted by: Brainonska511
Black holes slowly "evaporate" 1 atom or so within a set interval, so eventually the matter that was sucked into the black hole will be redeposited into space.

redeposited where?

Outside a white plug?

Fixed

 

[DaShen]

Originally posted by: Mrvile

Originally posted by: Brainonska511
Black holes slowly "evaporate" 1 atom or so within a set interval, so eventually the matter that was sucked into the black hole will be redeposited into space.

Is that seriously what happens?

Yes slowly, the energy disappates as x-ray energy and high wavelength photons at the poles.

**EDIT**
BTW, Stephen Hawkings was the one who figured this out, and it is the theory that made him famous.

 

[spidey07]

Originally posted by: dainthomas

Originally posted by: spidey07
I thought it spits it out as x-rays.

X-rays can't escape any more than visible light (from beyond the event horizon anyway).

IIRC, the process has something to do with quantum mechanics and tunneling, but it's been a while since college physics.

yeah, it's been a while since I've read much about it. I just remember something about "jets" coming from black holes.

 

[JS80]

We're not talking about DVK916's black hole are we?

 

[DaShen]

Originally posted by: spidey07

Originally posted by: dainthomas

Originally posted by: spidey07
I thought it spits it out as x-rays.

X-rays can't escape any more than visible light (from beyond the event horizon anyway).

IIRC, the process has something to do with quantum mechanics and tunneling, but it's been a while since college physics.

yeah, it's been a while since I've read much about it. I just remember something about "jets" coming from black holes.

Yes, it has to do with the physical rotation of the black hole, and some other things. It has been a while for me too. I read too many things other than my CS books in college.

 

[theeedude]

black belly?

 

[DaShen]

Originally posted by: dainthomas

Originally posted by: spidey07
I thought it spits it out as x-rays.

X-rays can't escape any more than visible light (from beyond the event horizon anyway).

IIRC, the process has something to do with quantum mechanics and tunneling, but it's been a while since college physics.

How do you think CERN and other Science organizations "detect" the presence of black holes then?

They have only had one incident of actually seeing a black hole pass in front of a star. Most of the time they detect the possible presence by XRays and fluctuations.

 

[Vic]

Originally posted by: CKent

Originally posted by: Mrvile

Originally posted by: Brainonska511
Black holes slowly "evaporate" 1 atom or so within a set interval, so eventually the matter that was sucked into the black hole will be redeposited into space.

Is that seriously what happens?

According to Stephen Hawking, yeah... kinda goes against the whole "Nothing escapes, not even light" thing, but the man's a genius so I guess he's right.

Well, not even all the matter makes it to the event horizon. The accretion disc surrounding the black hole rotates at near the speed of light, creating friction and intense heat which converts as much as 20 times more of the mass into energy (x-rays) as would typical (solar) nuclear fusion, just outside the event horizon. This is believed to be the reason why quasars are so bright.

 

[DaShen]

Originally posted by: Vic

Originally posted by: CKent

Originally posted by: Mrvile

Originally posted by: Brainonska511
Black holes slowly "evaporate" 1 atom or so within a set interval, so eventually the matter that was sucked into the black hole will be redeposited into space.

Is that seriously what happens?

According to Stephen Hawking, yeah... kinda goes against the whole "Nothing escapes, not even light" thing, but the man's a genius so I guess he's right.

Well, not even all the matter makes it to the event horizon. The accretion disc surrounding the black hole rotates at near the speed of light, creating friction and intense heat which converts as much as 20 times more of the mass into energy (x-rays) as would typical (solar) nuclear fusion, just outside the event horizon. This is believed to be the reason why quasars are so bright.

That sounds right.

 

[Nerva]

Originally posted by: Shawn

Originally posted by: Brainonska511
Black holes slowly "evaporate" 1 atom or so within a set interval, so eventually the matter that was sucked into the black hole will be redeposited into space.

redeposited where?

evaporates as in it radiates, and more precisely, it radiates gravitational waves, i think. and the theory that blackholes evaporate did not come from hawkings, it came from some russian guy.

 

[neutralizer]

Originally posted by: Shawn

Originally posted by: Brainonska511
Black holes slowly "evaporate" 1 atom or so within a set interval, so eventually the matter that was sucked into the black hole will be redeposited into space.

redeposited where?

Your anus? :laugh:

 

[RossGr]

There are indeed small black holes which can evaporate via Hawking radiation. BUT, the big boys, like the one in the center of our galaxy do NOT evaporate. The big ones just continue to grow, as they acrete MUCH more matter then they radiate.

Hawking radiation involves the formation of a virtual partical pair at the event horizon, if the virtual partical falls into the event horizon, the real particle which remains outside is seen as a loss in mass of the BH.

When normal matter falls into a BH it emits x-rays as a sort of dying scream. It is these xrays which have become the signature of a BH.

IMHO: most of the posts in this thread are unreliable, I would incourage anyone reading this to at least check some Physics/astrophysics specific forums or web sites to comfirm or deny what has been posted.

 

[spidey07]

So do I get a cookie for the x-ray thing?