So, something I have never seen in scientific talks or papers that I have read, is how dark matter deals with black holes, so, I have some quick questions if this has been addressed.
First I will start with some premises, if any of these are incorrect, feel free to correct them.
We know little about dark matter, we don’t know what interactions it has with normal matter, nor what sort of self interactions it does have. There are two things we do know about it though, the first is that it does not interact with the electromagnetic field, and the other is that is does interact with gravity.
Black holes do not care what kind of matter or energy enters them, it will always result in a larger event horizon, proportional to the mass/energy of the entrant.
Hawking radiation is detectable in the electromagnetic spectrum, and is proportional (inverse exponentially) to the mass.
The Information Conservation law is valid.
Given these premises, what I am having trouble with is figuring what happens to dark matter after it falls into a black hole. According to hawking radiation and information conservation, the dark matter should be reemitted as “dark energy” (which is different from dark energy, but would be the electromagnetic equivalent of dark matter, the long range force (if any) that dark matter interacts with other than gravity.) or dark matter particles. This should not contribute to a temperature detectable by the use of electromagnetic field.
On the other hand, hawking radiation temperature is defined directly by the mass of the black hole and its subsequent horizon.
So, either the hawking temperature needs to be adjusted by the dark matter content of the hole giving a fourth fundemental property of black holes (mass, charge and spin being the original), or dark matter can turn into matter that does interact with the electromagnetic field, which seems it should invalidate the law of information conservation.
Or more likely, I am missing something else that is obvious.