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For black holes the mass of our Sun, the radiation coming from it is so weak and so cool that the temperature is only one ten-millionth of a degree above absolute zero. This is colder than scientists could make things on Earth up until just a few years ago (and the invention of of a way to get things that cold won the Nobel prize this year). Some black holes are thought to weigh a billion times as much as the Sun, and they would be a billion times colder, far colder than what scientists have achieved on Earth.
However, even though these things are very cold, they can be surrounded by extremely hot material. As they pull gas and stars down into their gravity wells, the material rubs against itself at a good fraction of the speed of light. This heats it up to hundreds of millions of degrees. The radiation from this hot, infalling material is what high-energy astronomers study.
What else can I help you with?
Did black hole have energy?
a high energy black hole will have an extremely high amount of energy which they will exert from themselves. however these type of black generally have an extremely short lifespan compared to their high mass cousins which can stick around for millions of years.
Is it possible to send garbage into a black hole?
If you can send another object into a black hole you can put garbage through a black hole. But bear in mind, we have no conveniently located black holes, so shipping costs are going to be very high.
What becomes of gamma radiation emitted by black holes?
Gamma radiation emitted by black holes can originate from the accretion disk around the black hole or from high-energy processes within the black hole itself. This radiation can escape the gravitational pull of the black hole and travel through space, potentially affecting nearby objects or being detected by telescopes as a signature of black hole activity.
What is a good black hole candidate?
A good black hole candidate is typically a region in space where high-energy astrophysical phenomena are observed, such as X-ray emissions or gravitational lensing effects, without a visible source of light. This can indicate the presence of a compact and extremely massive object that is likely a black hole.
What is the meaning of boundary in black hole?
In the context of a black hole, the boundary refers to the event horizon, which is the point of no return beyond which nothing, not even light, can escape the gravitational pull of the black hole. It marks the boundary between the observable universe outside the black hole and the region where all information is lost to the singularity at the center.
What is a black hole's role of altitude?
Altitude mean how high the black hole is above something.
What is enormous in a black hole?
The gravity is enormous! The gravity in a black hole is high enough to stop light escaping.
What event occurred when a black hole did a black hole spit something out?
When a black hole spits something out, it is called a "black hole jet." This event happens when matter and energy are ejected from the black hole at high speeds, creating powerful jets of particles and radiation.
What temperter should guinea pigs be keeped in?
in room temperter keep your cavies away from open windows
Did black hole have energy?
a high energy black hole will have an extremely high amount of energy which they will exert from themselves. however these type of black generally have an extremely short lifespan compared to their high mass cousins which can stick around for millions of years.
is a black hole bigger than a giant star?
Yes, a black hole is usually a star that has been compressed to a point where the density is really high.
What is the remains of of high mass stars?
It can be a black hole or a Neutron Star
Is it possible to send garbage into a black hole?
If you can send another object into a black hole you can put garbage through a black hole. But bear in mind, we have no conveniently located black holes, so shipping costs are going to be very high.
What becomes of gamma radiation emitted by black holes?
Gamma radiation emitted by black holes can originate from the accretion disk around the black hole or from high-energy processes within the black hole itself. This radiation can escape the gravitational pull of the black hole and travel through space, potentially affecting nearby objects or being detected by telescopes as a signature of black hole activity.
Did Stephen hawking's go to High school?
Stephen Hawking sent his high school into a black hole
What is the difference between a Scchwarzschild and a Kerr black hole?
A Schwarzschild black hole is a non-rotating black hole. The Kerr black hole is a rotating black hole. Since the latter is more complicated to describe, it was developed much later.A Schwarzschild black hole is a non-rotating black hole. The Kerr black hole is a rotating black hole. Since the latter is more complicated to describe, it was developed much later.A Schwarzschild black hole is a non-rotating black hole. The Kerr black hole is a rotating black hole. Since the latter is more complicated to describe, it was developed much later.A Schwarzschild black hole is a non-rotating black hole. The Kerr black hole is a rotating black hole. Since the latter is more complicated to describe, it was developed much later.
Why is getting too close to a black hole or a neutron star lethal?
Getting too close to a black hole is lethal because of its high gravitational pull. it is so high that not even LIGHT (which is the fastest known thing) can escape!!
