HFBoards

Go Back   HFBoards > Non-Sports > Sciences
Mobile Hockey's Future Become a Sponsor Site Rules Support Forum vBookie Page 2
Notices

Sciences A place to discuss natural, applied & social sciences, along with any other academically-oriented topics of interest to membership.

Enormous Black Hole Discovered

Reply
 
Thread Tools
Old
11-28-2012, 06:47 PM
  #1
BenchBrawl
joueur de hockey
 
BenchBrawl's Avatar
 
Join Date: Jul 2010
Posts: 14,105
vCash: 800
Enormous Black Hole Discovered

http://www.ibtimes.com/bigger-more-p...covered-906722

BenchBrawl is offline   Reply With Quote
Old
11-28-2012, 06:50 PM
  #2
The Russian General
Go Habs Go
 
The Russian General's Avatar
 
Join Date: Oct 2008
Location: Great City of Laval
Posts: 21,827
vCash: 500
The size of these objects is mind blowing really. How ****ing big is that?! How ****ing small are we?

The Russian General is online now   Reply With Quote
Old
11-28-2012, 08:06 PM
  #3
BenchBrawl
joueur de hockey
 
BenchBrawl's Avatar
 
Join Date: Jul 2010
Posts: 14,105
vCash: 800
It's pretty big.

BenchBrawl is offline   Reply With Quote
Old
11-28-2012, 09:43 PM
  #4
No Fun Shogun
Global Moderator
34-38-61-10-13-15
 
No Fun Shogun's Avatar
 
Join Date: May 2011
Location: Shogunate of Nofunia
Country: Fiji
Posts: 41,120
vCash: 50
The universe is clearly overcompensating for something.

No Fun Shogun is offline   Reply With Quote
Old
11-29-2012, 09:55 AM
  #5
x Tame Impala
Registered User
 
x Tame Impala's Avatar
 
Join Date: Aug 2011
Posts: 15,866
vCash: 500
17 Billion times the size of our sun. I"m having trouble translating that to something i can comprehend.

x Tame Impala is online now   Reply With Quote
Old
11-29-2012, 12:57 PM
  #6
jimmythescot
Registered User
 
jimmythescot's Avatar
 
Join Date: Jul 2009
Location: Edinburgh, Scotland
Country: Canada
Posts: 4,737
vCash: 500
I read this last night but didn't comment. I've been thinking about it all day. Something that big, but also that dense?

jimmythescot is offline   Reply With Quote
Old
11-29-2012, 03:02 PM
  #7
Unaffiliated
Registered User
 
Unaffiliated's Avatar
 
Join Date: Aug 2010
Location: Richmond, B.C.
Country: Canada
Posts: 10,938
vCash: 500
Quote:
Originally Posted by xX Hot Fuss View Post
17 Billion times the size of our sun. I"m having trouble translating that to something i can comprehend.
Mass, not size



schwarzschild radius of a black hole with mass 17,000,000,000*m_sun is:

http://www.wolframalpha.com/input/?i=2+*+G+*+%2817000000000*1.989E30+kg%29+%2F+c^2







Note that it is completely expected for an object that heavy to be a black hole, since:

the schwarzchild radius is proportional to the mass, which is (for constant density) proportional to the cube of the radius

that is to say, for an object of constant density, the schwarzchild radius grows much faster than the [regular] radius


Last edited by Unaffiliated: 11-29-2012 at 03:13 PM.
Unaffiliated is offline   Reply With Quote
Old
11-29-2012, 06:22 PM
  #8
Joseppi
Registered User
 
Joseppi's Avatar
 
Join Date: Oct 2008
Location: Kepler-22b
Country: Canada
Posts: 5,171
vCash: 50
The event horizon is 4 light days across?!?!

The event horizon is the point at which you can no longer escape the gravity of a black hole. Even traveling the speed of light won't get you away from it. And this black hole's event horizon is 4 LIGHT DAYS across.
103,608,273,000km across.
8,122,316 Earths across
75,078 Suns across

Wow.


Last edited by Joseppi: 11-29-2012 at 06:27 PM.
Joseppi is online now   Reply With Quote
Old
11-29-2012, 07:12 PM
  #9
The Dayvan Cowboy
Registered Genius
 
The Dayvan Cowboy's Avatar
 
Join Date: Feb 2009
Country: Canada
Posts: 7,781
vCash: 500
What is almost always as impressive to me is the fact that every time I read one of these stories, I am reminded that we actually have the technology to observe this. I couldn't imagine the work that goes into building a telescope that can observe things galaxies away.

The Dayvan Cowboy is offline   Reply With Quote
Old
11-29-2012, 07:35 PM
  #10
JWells16
Registered User
 
JWells16's Avatar
 
Join Date: Nov 2006
Location: Raleigh, NC
Country: United States
Posts: 11,531
vCash: 500
Umm... wow.

JWells16 is offline   Reply With Quote
Old
11-29-2012, 11:01 PM
  #11
Beef Invictus
Global Moderator
Ground Beef Invictus
 
Beef Invictus's Avatar
 
Join Date: Dec 2009
Location: Centreville
Country: Lord Howe Island
Posts: 65,998
vCash: 500
I read a BBC article that said this is as big as our solar system. That's mind bogglingly huge for a black hole.

__________________
Saturday night, I like to raise a little harm. I'll sleep when I'm dead.
Beef Invictus is online now   Reply With Quote
Old
11-30-2012, 03:19 AM
  #12
Unaffiliated
Registered User
 
Unaffiliated's Avatar
 
Join Date: Aug 2010
Location: Richmond, B.C.
Country: Canada
Posts: 10,938
vCash: 500
Clearing something up a little here:

The Schwarzchild radius or event horizon is the distance from the singularity where nothing can escape. This is kind of the "effective" size of the black hole.

The actual mass of a black hole is all in a single point. So you can think of the "size" of all black holes being the same: 0.

Unaffiliated is offline   Reply With Quote
Old
11-30-2012, 09:59 AM
  #13
Franck
En enda känsla...
 
Franck's Avatar
 
Join Date: Jan 2010
Location: Gothenburg
Country: Sweden
Posts: 9,530
vCash: 50
Sounds like they've found my bank account.

Franck is offline   Reply With Quote
Old
11-30-2012, 12:07 PM
  #14
Jussi
Hey everyone
 
Jussi's Avatar
 
Join Date: Feb 2002
Location: The List Of Jericho
Country: Finland
Posts: 55,955
vCash: 500
Man, I thought this thread would have been about the NHLPA...

Jussi is offline   Reply With Quote
Old
11-30-2012, 12:09 PM
  #15
George Maharis
Risk Taker
 
George Maharis's Avatar
 
Join Date: Feb 2011
Location: nova sGOATia
Country: Canada
Posts: 21,903
vCash: 50
Quote:
Originally Posted by Franck View Post
Sounds like they've found my bank account.
Hahahaha, this made my day and i‘m not even sure why!!

But in all seriousness, could this be the black hole that‘s “supposed“ to bring the end of the world in about 3 weeks? Seems quite convenient that they‘d find it with less than a month left.

George Maharis is offline   Reply With Quote
Old
11-30-2012, 12:36 PM
  #16
Finlandia WOAT
Sturgeon's Law
 
Finlandia WOAT's Avatar
 
Join Date: May 2010
Country: United States
Posts: 15,478
vCash: 500
Are there any stars that are big enough to go supernova and cause a black hole of this size? This seems very unprecedented.

It also makes you realize that, if a black hole appeared anywhere close to our solar system, we are screwed (unless nuking black holes works).

Finlandia WOAT is offline   Reply With Quote
Old
11-30-2012, 01:11 PM
  #17
Unaffiliated
Registered User
 
Unaffiliated's Avatar
 
Join Date: Aug 2010
Location: Richmond, B.C.
Country: Canada
Posts: 10,938
vCash: 500
Quote:
Originally Posted by Plan The Parade View Post
Are there any stars that are big enough to go supernova and cause a black hole of this size? This seems very unprecedented.

It also makes you realize that, if a black hole appeared anywhere close to our solar system, we are screwed (unless nuking black holes works).
Here's something that I'll add to the common misconceptions thread.

Black holes are not magic vaccuum cleaners. If faraway giant star does not have enough mass right now to suck in the earth, then it will still not have enough mass to suck in the earth when it collapses.



If the sun somehow turned into a black hole with the exact same mass, none of the planets would be sucked in. The orbits would be almost the exact same.

Unaffiliated is offline   Reply With Quote
Old
11-30-2012, 10:08 PM
  #18
Joseppi
Registered User
 
Joseppi's Avatar
 
Join Date: Oct 2008
Location: Kepler-22b
Country: Canada
Posts: 5,171
vCash: 50
Quote:
Originally Posted by Plan The Parade View Post
Are there any stars that are big enough to go supernova and cause a black hole of this size? This seems very unprecedented.

It also makes you realize that, if a black hole appeared anywhere close to our solar system, we are screwed (unless nuking black holes works).
Nope. It's thought that the upper limit for star formation is 150 solar masses. A 265 solar mass star has been observed, though given the circumstances of its location, collisions and potentially a merging of a close binary partner likely played a part in its grotesque size

Keep in mind that black holes can feed and merge with one another. The real question is how it managed to gobble up as much as it did

Joseppi is online now   Reply With Quote
Old
11-30-2012, 11:09 PM
  #19
WarriorOfGandhi
Was saying Boo-urns
 
WarriorOfGandhi's Avatar
 
Join Date: Jul 2007
Location: Denver, CO
Country: Scotland
Posts: 16,780
vCash: 50
Quote:
Originally Posted by Unaffiliated View Post
Here's something that I'll add to the common misconceptions thread.

Black holes are not magic vaccuum cleaners. If faraway giant star does not have enough mass right now to suck in the earth, then it will still not have enough mass to suck in the earth when it collapses.



If the sun somehow turned into a black hole with the exact same mass, none of the planets would be sucked in. The orbits would be almost the exact same.
but black holes still move about the universe, no? So one could be headed our way and everything within four light-days of us would be sucked into an area the size of a Rubiks Cube.

WarriorOfGandhi is offline   Reply With Quote
Old
12-01-2012, 02:05 AM
  #20
Unaffiliated
Registered User
 
Unaffiliated's Avatar
 
Join Date: Aug 2010
Location: Richmond, B.C.
Country: Canada
Posts: 10,938
vCash: 500
Quote:
Originally Posted by WarriorOfGandhi View Post
but black holes still move about the universe, no? So one could be headed our way and everything within four light-days of us would be sucked into an area the size of a Rubiks Cube.
But they still follow the same geodesics. If they collide with us, they would have collided anyway. And we probably would have died anyway.

Unaffiliated is offline   Reply With Quote
Old
12-01-2012, 06:45 PM
  #21
Leaf Rocket
Leaf Fan Till I Die
 
Leaf Rocket's Avatar
 
Join Date: Dec 2007
Location: Toronto/Fredericton
Country: India
Posts: 74,026
vCash: 500
Wow that's absolutely insane.

__________________
Leaf Rocket is offline   Reply With Quote
Old
12-01-2012, 08:46 PM
  #22
Joseppi
Registered User
 
Joseppi's Avatar
 
Join Date: Oct 2008
Location: Kepler-22b
Country: Canada
Posts: 5,171
vCash: 50
Quote:
Originally Posted by WarriorOfGandhi View Post
but black holes still move about the universe, no? So one could be headed our way and everything within four light-days of us would be sucked into an area the size of a Rubiks Cube.
We'd see it LONG before it got to that point. Black holes emit absolutely horrendous amounts of x-rays, and we have satellites observing exactly that. Nothing to be worried about on that front

Joseppi is online now   Reply With Quote
Old
12-01-2012, 09:59 PM
  #23
Unaffiliated
Registered User
 
Unaffiliated's Avatar
 
Join Date: Aug 2010
Location: Richmond, B.C.
Country: Canada
Posts: 10,938
vCash: 500
Quote:
Originally Posted by Joseppi View Post
We'd see it LONG before it got to that point. Black holes emit absolutely horrendous amounts of x-rays, and we have satellites observing exactly that. Nothing to be worried about on that front
No they don't...

Unaffiliated is offline   Reply With Quote
Old
12-02-2012, 05:31 PM
  #24
Joseppi
Registered User
 
Joseppi's Avatar
 
Join Date: Oct 2008
Location: Kepler-22b
Country: Canada
Posts: 5,171
vCash: 50
Quote:
Originally Posted by Unaffiliated View Post
No they don't...
My apologies, I should've been more specific. The accretion disks of black holes emit huge amounts of x-rays. I can only imagine the size of the disk on a black hole this size.

Joseppi is online now   Reply With Quote
Old
12-02-2012, 05:38 PM
  #25
BPR*
 
Join Date: Jan 2009
Location: Portugal
Posts: 26,404
vCash: 500
It's like, how much blacker could this hole be? And the answer is none. None more black.

BPR* is offline   Reply With Quote
Reply

Forum Jump


Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 06:26 PM.

monitoring_string = "e4251c93e2ba248d29da988d93bf5144"

vBulletin Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
HFBoards.com is a property of CraveOnline Media, LLC, an Evolve Media, LLC company. ©2016 All Rights Reserved.