Heat Applied to Black Hole: What Happens?

[Calimero]

If we somehow could apply a significant amount of heat to the black hole, what would happen? Photons get redshifted near the event horizon, so how energy transfer towards black hole goes?

 

[Nabeshin]

If we somehow could apply a significant amount of heat to the black hole, what would happen? Photons get redshifted near the event horizon, so how energy transfer towards black hole goes?

How do you propose to heat the black hole? Radiation? Sure, we could try shining a bunch of photons in it. This would increase the mass of the black hole, which, curiously, decreases its [effective] temperature!

 

[Calimero]

Well, I didn't say to raise its temperature, I said to transfer energy by the means of applying heat to it.

So can we state that black holes are only known way to convert energy to rest mass?

 

[Nabeshin]

So can we state that black holes are only known way to convert energy to rest mass?

That's not true. It routinely happens in particle accelerators and our own atmosphere.

 

[sardar]

I would like to clarify that the concept of "heat" does not apply to black holes in the traditional sense. A black hole is a region of space with such a strong gravitational pull that nothing, including light, can escape from it. Therefore, the idea of "applying heat" to a black hole is not physically possible.

However, if we were to somehow introduce a large amount of energy into the vicinity of a black hole, such as from a nearby star or gas cloud, the black hole's gravitational pull would increase and its event horizon (the point of no return) would expand. This would cause any photons (particles of light) near the event horizon to become redshifted, meaning their wavelengths would increase and their energy would decrease.

In terms of energy transfer, the photons near the event horizon would continue to be pulled towards the black hole, just like any other matter or energy in its vicinity. The transfer of energy towards the black hole would occur due to the immense gravitational force of the black hole.

In summary, while it is not possible to directly apply heat to a black hole, introducing energy into its vicinity can affect its properties, such as the size of its event horizon and the behavior of light particles near it. Further research and observations are needed to fully understand the complex interactions between black holes and surrounding matter and energy.