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Astrophysicists duo propose Planck star as core of black holes
Phys dot org ^ | February 14, 2014 | Bob Yirka

Posted on 02/17/2014 10:49:25 AM PST by SunkenCiv

The current thinking regarding black holes is that they have two very simple parts, an event horizon and a singularity. Because a probe cannot be sent inside a black hole to see what is truly going on, researchers have to rely on theories. The singularity theory suffers from what has come to be known as the "information paradox"—black holes appear to destroy information, which would seem to violate the rules of general relativity, because they follow rules of quantum mechanics instead. This paradox has left deep thinking physicists such as Stephen Hawking uneasy—so much so that he and others have begun offering alternatives or amendments to existing theories. In this new effort, a pair of physicists suggest the idea of a Planck star.

The idea of a Planck star has its origins with an argument to the Big Bang theory—this other idea holds that when the inevitable Big Crunch comes, instead of forming a singularity, something just a little more tangible will result—something on the Planck scale. And when that happens, a bounce will occur, causing the universe to expand again, and then to collapse again and so on forever back and forth.

Rovelli and Vidotto wonder why this couldn't be the case with black holes as well—instead of a singularity at its center, there could be a Planck structure—a star—which would allow for general relativity to come back into play. If this were the case, then a black hole could slowly over time lose mass due to Hawking Radiation—as the black hole contracted, the Planck star inside would grow bigger as information was absorbed. Eventually, the star would meet the event horizon and the black hole would dematerialize in an instant as all the information it had ever sucked in was cast out into the universe.

(Excerpt) Read more at phys.org ...


TOPICS: Astronomy; Science
KEYWORDS: bigbang; bigbounce; bigcrunch; blackholes; hawkingradiation; informationparadox; planckstar; stringtheory
This artist's concept depicts a supermassive black hole at the center of a galaxy. The blue color here represents radiation pouring out from material very close to the black hole. The grayish structure surrounding the black hole, called a torus, is made up of gas and dust. Credit: NASA/JPL-Caltech

Credit: NASA/JPL-Caltech

1 posted on 02/17/2014 10:49:25 AM PST by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...

Extra to APoD.


2 posted on 02/17/2014 10:50:00 AM PST by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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To: 6SJ7; AdmSmith; AFPhys; Arkinsaw; allmost; aristotleman; autumnraine; backwoods-engineer; ...


· List topics · post a topic · subscribe · Google ·

3 posted on 02/17/2014 10:50:49 AM PST by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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To: SunkenCiv

“Black holes appear to destroy information”

Tequila does that, too.


4 posted on 02/17/2014 11:16:47 AM PST by blueunicorn6 ("A crack shot and a good dancer")
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To: SunkenCiv
Eventually, the star would meet the event horizon and the black hole would dematerialize in an instant as all the information it had ever sucked in was cast out into the universe.

I don't know about "in an instant" but isn't this idea a bit like what quasars are doing?

5 posted on 02/17/2014 11:19:01 AM PST by bigheadfred
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To: blueunicorn6

and that can be a really really good thing


6 posted on 02/17/2014 11:20:11 AM PST by bigheadfred
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To: SunkenCiv
Because a probe cannot be sent inside a black hole to see what is truly going on, researchers have to rely on theories.

And since the nearest black hole is 1600 light years away that probe will not reach it's destination until the theory has changed at least a hundred times.

7 posted on 02/17/2014 11:26:19 AM PST by Starstruck (If my reply offends, you probably don't understand sarcasm or criticism...or do.)
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To: blueunicorn6
“Black holes appear to destroy information”

Tequila does that, too.

I have always thought so too.
But with today's modern technology, like Facebook and Twitter, you can find evidence of the supposedly "destroyed" information.

8 posted on 02/17/2014 11:42:49 AM PST by Rightwing Conspiratr1
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To: blueunicorn6
One tequila.

Two tequila.

Three tequila.

Floor.

9 posted on 02/17/2014 12:08:11 PM PST by JoeFromSidney (Book: Resistance to Tyranny. Buy from Amazon.)
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To: SunkenCiv

They should just go get one, and then study it in the laboratory.


10 posted on 02/17/2014 12:12:13 PM PST by ZX12R (Never forget the heroes of Benghazi, who were abandoned to their deaths by Obama)
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To: SunkenCiv; windcliff; stylecouncilor
...something on the Planck scale. And when that happens, a bounce will occur, causing the universe to expand again, and then to collapse again and so on forever back and forth.

All entirely theoretical, of course. Yet, I'm haunted by how this harkens back to the Many Worlds Interpretation of Quantum Mechanics by Hugh Everett in the 1950s, which essentially postulated that all outcomes to a given event are realized, and not just the outcome we witness here.

There have been many variations of this since. However, M-Theory has since rekindled its spark in me in considering what The Bible, and specifically Jesus meant about "eternal life".

Theoretically, as we die, we are dead here. Yet in an infinity of "parallel" universes our life goes on unaware of any break in its earlier continuity. In some such "settings" we may be young or old, perhaps just born, yet there nonetheless, else any other universe would not apply to us not being in it.

In this sense we would never truly "die" but go on forever, one previous "death" in another sub-system after another, one of those "lives" right here and now.

Though I realize God sets those parameters, who's mechanisms we'll never really know until our souls are fully, infused in Him, which just as possibly may never be. But we'll know Him and those aspects He has prepared for us to once again know each other. And that's more than enough for me.

11 posted on 02/17/2014 12:33:07 PM PST by onedoug
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To: onedoug

When any’thing’ approaches the Planck length, it is being arranged in such a way that it is essentially in a ‘Bose-Einstein’ condensate arrangement and quantumly connected to every other bit of matter in the Universe. Since matter is nothing more than condensed energy (energy captured with a pinch of space and a whisp of time), why not consider black holes the enegine generating the expansion of spacetime?


12 posted on 02/17/2014 12:45:17 PM PST by MHGinTN (Being deceived can be cured.)
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To: MHGinTN
If I decline to think about that, does that mean I have to walk the planck?
13 posted on 02/17/2014 12:52:23 PM PST by KC Burke (Officially since Memorial Day they are the Gimmie-crat Party.ha)
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To: onedoug

http://en.wikipedia.org/wiki/Many-worlds_interpretation

http://en.wikipedia.org/wiki/Hugh_Everett_III

http://space.mit.edu/home/tegmark/everett/

http://www.scientificamerican.com/article/hugh-everett-biography/

http://www.pbs.org/wgbh/nova/manyworlds/


14 posted on 02/17/2014 1:02:48 PM PST by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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To: SunkenCiv

String Theory Ping List!?!?!?

Sign me up!


15 posted on 02/17/2014 1:10:23 PM PST by Conan the Librarian (The Best in Life is to crush my enemies, see them driven before me, and the Dewey Decimal System)
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To: MHGinTN

God has given us enormous complexity from His most generous simplicity.


16 posted on 02/17/2014 1:11:05 PM PST by onedoug
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To: KC Burke
;^) Only in Planck Time.
17 posted on 02/17/2014 2:13:13 PM PST by MHGinTN (Being deceived can be cured.)
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To: SunkenCiv

Nice catch. Thanks for posting.


18 posted on 02/17/2014 2:38:13 PM PST by LibWhacker
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To: bigheadfred

It has occurred to some that quasars are the output of the black holes’ input, also there’s this:

http://cds.cern.ch/record/340683/files/9712164.pdf
http://link.springer.com/chapter/10.1007/978-94-009-0145-2_34#page-1


19 posted on 02/17/2014 2:46:37 PM PST by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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To: LibWhacker

My pleasure!


20 posted on 02/17/2014 2:47:18 PM PST by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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To: Conan the Librarian

Welcome aboard!


21 posted on 02/17/2014 2:48:13 PM PST by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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To: KC Burke

If you don’t walk the planck, you’ll get hit with a bag of boltz.


22 posted on 02/17/2014 3:40:21 PM PST by Fred Hayek (The Democratic Party is now the operational arm of the CPUSA)
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