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Astronomers observe evolution of a black hole as it wolfs down stellar material
Posted on 1/9/19 at 6:31 pm
Posted on 1/9/19 at 6:31 pm
On March 11, an instrument aboard the International Space Station detected an enormous explosion of X-ray light that grew to be six times as bright as the Crab Nebula, nearly 10,000 light years away from Earth. Scientists determined the source was a black hole caught in the midst of an outburst -- an extreme phase in which a black hole can spew brilliant bursts of X-ray energy as it devours an avalanche of gas and dust from a nearby star.
Here was the fun part :
"The gas in the center is millions of degrees in temperature," Steiner says. "When you heat something that hot, it shines out as X-rays. This disk can undergo avalanches and pour its gas down onto the central black hole at about a Mount Everest's worth of gas per second. And that's when it goes into outburst, which usually lasts about a year."
Science Daily : Source MIT
2
Posted on 1/9/19 at 9:29 pm to Trumansfangs
Man, it's the Romulans fricking around, testing out their big-guns as a show of force to the Vulcans and Andorians. They fixing to start some shite.
Posted on 1/9/19 at 11:46 pm to Trumansfangs
What do you think is inside a black hole?
Could a massive black hole be at the center of our universe?
Could a massive black hole be at the center of our universe?
Posted on 1/10/19 at 1:36 am to KSGamecock
I guess it depends if we think a black hole is sort of a glitch in our simulation, basically what happens when matter/time/space gets too heavy and collapses in on itself.
If it's a glitch, it can be anything from just a garbage disposal to holding universe(s).
If it has a purpose, like most things in our simulation, it might serve to make new, smaller singularities in which it's basically recycling matter. Or as a 'star' in its own 'system' to keep galactic clusters around it.
Inside: Who knows.
As for the massive black hole at the center of the universe, we can only see so much of our universe, so it's certainly possible. Some people allude to our universe being in a cluster of different universes like grapes, with a membrane so thick and far away from actually being discoverable that it would take a universe's lifespan to reach another one of these universes.
Anyway, have a nice one guys.
If it's a glitch, it can be anything from just a garbage disposal to holding universe(s).
If it has a purpose, like most things in our simulation, it might serve to make new, smaller singularities in which it's basically recycling matter. Or as a 'star' in its own 'system' to keep galactic clusters around it.
Inside: Who knows.
As for the massive black hole at the center of the universe, we can only see so much of our universe, so it's certainly possible. Some people allude to our universe being in a cluster of different universes like grapes, with a membrane so thick and far away from actually being discoverable that it would take a universe's lifespan to reach another one of these universes.
Anyway, have a nice one guys.
Posted on 1/10/19 at 11:36 am to StrawsDrawnAtRandom
quote:
with a membrane so thick and far away from actually being discoverable that it would take a universe's lifespan to reach another one of these universes.
If there are other universes, are they simply defined as other clusters of galaxies separate from our own or are they defined in another way?
Posted on 1/10/19 at 12:01 pm to thatguy45
I would say 'uni' in universe means that it's part of the same existence if that makes any sense. However, there may be different tiers of existence.
I think the most horrifying idea is that there is probably a singular, 'real' universe that's created an endless amount of other existences that are all relying on the continuity of that universe.
However, the dilation and contraction of time -- we (our universe) may have to die a trillion more times before we experience some form of ultimate death if the first existence were to experience complete entropy and the laws of physics/thermodynamics did not exist in the way that they do here.
The short answer is: It depends on how you define universe. Is it where our galaxy resides, or does it encompass all facets of existence -- those ethereal and physical included?
I think the most horrifying idea is that there is probably a singular, 'real' universe that's created an endless amount of other existences that are all relying on the continuity of that universe.
However, the dilation and contraction of time -- we (our universe) may have to die a trillion more times before we experience some form of ultimate death if the first existence were to experience complete entropy and the laws of physics/thermodynamics did not exist in the way that they do here.
The short answer is: It depends on how you define universe. Is it where our galaxy resides, or does it encompass all facets of existence -- those ethereal and physical included?
Posted on 1/10/19 at 8:52 pm to StrawsDrawnAtRandom
Why does everybody think there's something "in" a black hole like it's some kind of door? Isn't a black hole just a sphere of unimaginably dense matter? Once it can't get any more dense it explodes, then starts the process over again
Posted on 1/10/19 at 9:00 pm to EyeTwentyNole
quote:
Isn't a black hole just a sphere of unimaginably dense matter?
Yes. Mass warps spacetime, creating the gravitational effect.
quote:
Once it can't get any more dense it explodes, then starts the process over again
No. There is no theoretical limit to the amount of mass a black hole can accrete.
Posted on 1/10/19 at 9:20 pm to Kentucker
I theorize that there is which proves you're wrong. Checkmate. Kentucker BTFO'd. Get the frick outta my gym.
Posted on 1/10/19 at 9:29 pm to KSGamecock
Posted on 1/10/19 at 9:32 pm to Kentucker
That feeling you're feeling is getting beat in a science argument for the first time. You have been out physicianed.
Posted on 1/10/19 at 9:42 pm to KSGamecock
Posted on 1/13/19 at 3:23 pm to Kentucker
quote:
No. There is no theoretical limit to the amount of mass a black hole can accrete.
Isn't that what a quasar is? An immense explosion and ejection of matter from a black hole when a limit has been reached?
Posted on 1/13/19 at 5:00 pm to EyeTwentyNole
quote:
Why does everybody think there's something "in" a black hole like it's some kind of door? Isn't a black hole just a sphere of unimaginably dense matter? Once it can't get any more dense it explodes, then starts the process over again
quote:
If it's a glitch, it can be anything from just a garbage disposal to holding universe(s). If it has a purpose, like most things in our simulation, it might serve to make new, smaller singularities in which it's basically recycling matter. Or as a 'star' in its own 'system' to keep galactic clusters around it.
I never claimed that there was something in one, simply said that it could be anything from a destroyer of all material or it could hold something.
However: There is no such thing as "nothing" since "something" exists, so to assume that there is nothing inside of one is just as equally or more ludicrous than any other theory.
quote:
Isn't a black hole just a sphere of unimaginably dense matter?
Could be. Are you volunteering to check it out, or are we just assuming? I also put in another post that it could very much be apart of the cyclical path of reallocating matter/creating what's necessary for stars to be born -- which is a common theory. However...
Black Holes were/are not visible. To us, we can only glean what they're doing by circumstantial evidence. Similarly, for a black hole to evaporate it would literally take billions and billions of more years than the estimated age of our universe.
Short answer: No one knows.
Long answer: Let's have philosophical fun. :3
Posted on 1/13/19 at 8:25 pm to EyeTwentyNole
quote:
Isn't that what a quasar is? An immense explosion and ejection of matter from a black hole when a limit has been reached?
Almost, but not quite. Supermassive black holes have immense accretion disks. It's in this disk that the "explosion" occurs, not in the black hole. Remember, nothing can escape from a black hole's gravity.
Some galaxies have such gigantic supermassive black holes that the radiation from their accretion disks creates the greatest luminosities in the Universe. They can be thousands of times brighter than the entire Milky Way, for example.
Posted on 1/13/19 at 9:39 pm to Kentucker
A while back on here someone wrote an "explain it to me like I'm a 5 year old" explanation of a black hole and it was the best description I've ever read. I've tried to find it before but it seems to have disappeared
Posted on 1/13/19 at 10:42 pm to StrawsDrawnAtRandom
Great post, SDAR.
Posted on 1/14/19 at 12:04 am to TbirdSpur2010
Praise from Caesar is praise indeed.
What's crazy is that if our universe is spherical/globular (like most structures), then the weight could easily cause a time distortion AND cause a rip, acting as a wormhole.
The tricky part is actually surviving the tidal forces to enjoy the ride.
The worst part is that we'll never know unless we achieve a harmonious technological singularity with machines, which would mean drastic changes to humanity.
What's crazy is that if our universe is spherical/globular (like most structures), then the weight could easily cause a time distortion AND cause a rip, acting as a wormhole.
The tricky part is actually surviving the tidal forces to enjoy the ride.
The worst part is that we'll never know unless we achieve a harmonious technological singularity with machines, which would mean drastic changes to humanity.
Posted on 1/14/19 at 1:46 am to KSGamecock
Read up on the information paradox and proposed solutions to ponder this question.
Posted on 1/14/19 at 8:22 am to StrawsDrawnAtRandom
quote:
The worst part is that we'll never know unless we achieve a harmonious technological singularity with machines, which would mean drastic changes to humanity.
That's the part that always gets me. The fact that in our current stage of development, there is so much that we simply CAN'T know, our best efforts notwithstanding.
Hell, the depths of the oceans on our own planet are still a mystery, and we've been here for eons and they cover 70% of the planet. That alone is mind-boggling. No wonder the secrets of the universe at large are so fundamentally incredible to us.
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