Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Black holes have a size limit of 50 billion suns
New Scientist ^ | 10 Dec, 2015 | Joshua Sokol,

Posted on 12/10/2015 8:44:24 PM PST by MtnClimber

Even gluttons can't eat forever. When black holes at the hearts of galaxies swell to 50 billion times the mass of our sun, they may lose the discs of gas they use as cosmic feedlots.

Most galaxies host a supermassive black hole at their centre. Around this is a region of space where gas settles into an orbiting disc. The gas can lose energy and fall inwards, feeding the black hole. But these discs are known to be unstable and prone to crumbling into stars.

Theoretically, a black hole could grow so big that it swallows up the stable part of the disc and destroys it. However, most people thought that black holes would not actually achieve that. "It didn't occur to us to worry about it, because the mass required was so large," says Andrew King of the University of Leicester, UK.

But there were observational hints that such a limit should exist. In 2008, an independent group led by Priya Natarajan of Yale University and Ezequiel Treister of the University of Concepcion in Chile considered how much black holes feasted in the early universe and the free gas available for them to swallow in recent times.

Given how much black holes have eaten since the dawn of the universe, they argued, the greediest ones could have grown to a size of about 50 billion solar masses.

(Excerpt) Read more at newscientist.com ...


TOPICS: Science
KEYWORDS: astronomy; blackhole; blackholes; physics; stringtheory
Navigation: use the links below to view more comments.
first 1-2021-28 next last

1 posted on 12/10/2015 8:44:24 PM PST by MtnClimber
[ Post Reply | Private Reply | View Replies]

To: MtnClimber

So the spiral galaxies seem to be feeding their black hole faster than even the huge elliptical galaxies.


2 posted on 12/10/2015 8:45:38 PM PST by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: MtnClimber

Nonsense.


3 posted on 12/10/2015 8:47:42 PM PST by Fungi
[ Post Reply | Private Reply | To 1 | View Replies]

To: MtnClimber
Thank God. For a moment I thought it was 50 million suns.
4 posted on 12/10/2015 8:49:43 PM PST by golux
[ Post Reply | Private Reply | To 2 | View Replies]

To: MtnClimber

black hole don’t exist.
https://www.youtube.com/watch?v=wRsGPq77X0Q


5 posted on 12/10/2015 8:51:21 PM PST by 4rcane
[ Post Reply | Private Reply | To 1 | View Replies]

To: 4rcane

once you realize black holes don’t exist. You realize what a con game ALL ESTABLISHMENT SCIENCE have become


6 posted on 12/10/2015 8:52:31 PM PST by 4rcane
[ Post Reply | Private Reply | To 5 | View Replies]

To: MtnClimber

Boy, and here I thought the science was settled! /s


7 posted on 12/10/2015 8:53:12 PM PST by Lake Living
[ Post Reply | Private Reply | To 1 | View Replies]

To: 4rcane

Black Holes Matter!


8 posted on 12/10/2015 8:53:59 PM PST by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
[ Post Reply | Private Reply | To 5 | View Replies]

To: Fungi

Agreed. There are no limits upon what God can do.

The laws of physics are nothing more than the feeble attempt of the arrogant efforts of self-proclaimed “experts” attempting to limit the power, wisdom, glory and magnificence of God. Pay no attention to them. Rather, cling to your faith, Bible and guns.


9 posted on 12/10/2015 9:06:19 PM PST by Roger Kaputnik (Just because I'm paranoid doesn't prove that they aren't out to get me.)
[ Post Reply | Private Reply | To 3 | View Replies]

To: 4rcane

“black hole don’t exist.”

This character is using a boatload of illogical and irrational strawman arguments based upon his false assumptions about the equations. In other words, he doesn’t know what he is talking about, so his conclusions are nonsensical.


10 posted on 12/10/2015 9:32:40 PM PST by WhiskeyX
[ Post Reply | Private Reply | To 5 | View Replies]

To: Roger Kaputnik
The laws of physics are nothing more than the feeble attempt of the arrogant efforts of self-proclaimed “experts” attempting to limit the power, wisdom, glory and magnificence of God.

Did you forget your sarcasm tag?

You painted with too broad a brush in this instance.
In many cases, the laws of physics are man's attempts, feeble though they may be, to understand God's creation.
For example, do you think Isaac Newton was an arrogant self proclaimed expert who feebly attempted to limit God?

However, I agree that some self proclaimed experts in the field of physics attempt to limit God in various ways, or they deny God's existence outright.

11 posted on 12/10/2015 9:56:33 PM PST by FreedomOfExpression
[ Post Reply | Private Reply | To 9 | View Replies]

To: 4rcane

You think mathematics is a con too?


12 posted on 12/10/2015 10:03:26 PM PST by onedoug
[ Post Reply | Private Reply | To 6 | View Replies]

To: MtnClimber

its probably good that black holes have a size limit

(now i only wish I did....)


13 posted on 12/10/2015 10:19:33 PM PST by faithhopecharity (Diff tween D's and R's is that the D's allow the poor to be corrupt, too. (O. Levsnt))
[ Post Reply | Private Reply | To 1 | View Replies]

To: MtnClimber
But these discs are known to be unstable and prone to crumbling into stars. Theoretically, a black hole could grow so big

This is ALL theoretical. They do not have any specific observational information for any of this. They build hypothesis on hypothesis and then have to run back to the "ether" theorem of the 1800's and rename it black matter because all of their calculations keep coming up short.
14 posted on 12/11/2015 12:34:44 AM PST by wbarmy (I chose to be a sheepdog once I saw what happens to the sheep.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: onedoug

Mathematics is not science, it is mathematics. Mathematics is often misused by scientists.


15 posted on 12/11/2015 3:29:00 AM PST by strings6459
[ Post Reply | Private Reply | To 12 | View Replies]

To: MtnClimber

Interesting to discuss after all else is discussed. I just hope none of my tax dollars were used to create this new “fact.” Who would care?


16 posted on 12/11/2015 5:02:02 AM PST by ThePatriotsFlag ( Anything FREELY-GIVEN by the government was TAKEN from someone else)
[ Post Reply | Private Reply | To 1 | View Replies]

To: strings6459

Can you cite an example?


17 posted on 12/11/2015 5:02:21 AM PST by onedoug
[ Post Reply | Private Reply | To 15 | View Replies]

To: 4rcane
"You realize what a con game ALL ESTABLISHMENT SCIENCE have become"

Really now. All of it?

Do you believe in Niburu and that the Apollo missions were faked? I'm intrigued, because the people who spout the sort of bullshit in the video you linked to are believers in all sorts of crap.

18 posted on 12/11/2015 5:33:54 AM PST by Da_Shrimp
[ Post Reply | Private Reply | To 6 | View Replies]

To: onedoug

Of what?


19 posted on 12/11/2015 6:54:49 AM PST by strings6459
[ Post Reply | Private Reply | To 17 | View Replies]

To: golux

What about a Black Hole Sun.....

https://www.youtube.com/watch?v=3mbBbFH9fAg


20 posted on 12/11/2015 6:57:23 AM PST by dfwgator
[ Post Reply | Private Reply | To 4 | View Replies]


Navigation: use the links below to view more comments.
first 1-2021-28 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson