What is the temprature in blackhole?

Question

May be absulet zero temp in blackhole. that y all maters are vanished,

Answer 1

The temperature of a black hole is determined by the 'black body radiation temperature' of the radiation which comes from it. (e.g., If something is hot enough to give off bright blue light, it is hotter than something that is merely a dim red hot.)

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.

there is a temperature graph for black holes at cerncourier.com.

Answer 2

The term 'temperature` as we understand it,

could have no meaning in a black hole.

Temperature is basically the wavelength of the

'black-body radiation' , (Wiki it ), emitted by an object.

For a wavelength to be measured, you use space and time. (Time stops/ (reverses?) at the 'event horizon`, (Wiki again).

Since both time and space are so warped in the 'hole', how could that be measured?

Answer 3

here are some site to look at www.wikapedia and www.youtube.com my guess in -458 f  no sars to heat it it's just a black hole

Answer 4

I would think that a black hole has no temperature. Since by definition, temperature is the average random kinetic energy of a system. Since a black hole does not radiate, as radiation cannot escape it, there is no transfer of kinetic energy to the surroundings, and therefore no temperature.

Answer 5

What Kay T said. :)

Answer 6

It would not be absolute zero, this is unattainable, but since there can be no friction because there is no motion, I would assume the temperature within a black hole would be the same as the temperature of deep space.

Answer 7

The matter inside doesn't vanish.

We just can't see it because light cannot go out of the hole.

Not sure 'bout the temp though.

Answer 8

that would not be knowable

it is physically impossible to get any sort of sensor into a black hole. at absolute zero, all movement stops. black holes emit hawking radiation, so that proves that part of them are moving right at the event horizon. inside the horizon, if we use the observed laws of physics, we would guess that spacetime was just dialated infinitely, and everything just kept on getting smaller and smaller. but that is only a guess. we have no idea as to what goes on insde a black hole.