Can black holes convert matter/dark matter?

[Khashishi]

Can black holes convert dark matter into matter and vice versa?

Presumably, a black hole can gain its mass from eating normal matter, or dark matter, or light. Then, it will eventually evaporate into Hawking radiation. I guess the Hawking radiation should include light as well as both matter and dark matter particles.

Is a black hole made of matter exactly the same as a black hole made of dark matter? Could dark matter possesses a "dark charge" which alters the black hole metric analogous to the Reissner-Nordstrom metric?

 

[phinds]

Can black holes convert dark matter into matter and vice versa?

no, stuff just falls in.

Presumably, a black hole can gain its mass from eating normal matter, or dark matter, or light.

yes

Then, it will eventually evaporate into Hawking radiation.

yes

I guess the Hawking radiation should include light as well as both matter and dark matter particles

No, Hawking radiation is not particles it is electromagnetic radiation.

Is a black hole made of matter exactly the same as a black hole made of dark matter?

Yes, you can't tell any difference at all.

 

[Khashishi]

No, Hawking radiation is not particles it is electromagnetic radiation.

Oh? I thought it was a thermal mix of all particles. Photons just happen to be the most likely, due to having zero mass.

 

[cosmik debris]

I don't think anyone knows what dark matter is or what really happens inside a black hole. General Relativity is the usual model that is used for black holes but it is silent about what constitutes dark matter. Also GR predicts a singularity in the black hole but I don't think anyone seriously believes that this is physically the case.

Cheers

 

[Kaura]

I don't think anyone knows what dark matter is or what really happens inside a black hole. General Relativity is the usual model that is used for black holes but it is silent about what constitutes dark matter. Also GR predicts a singularity in the black hole but I don't think anyone seriously believes that this is physically the case.

Cheers

We all know what really goes on in those Black Holes

 

[Nugatory]

Is a black hole made of matter exactly the same as a black hole made of dark matter? Could dark matter possesses a "dark charge" which alters the black hole metric analogous to the Reissner-Nordstrom metric?

We don't know for sure what the stuff is, so we can't make authoritative pronouncements about its properties.

But seeing as how the evidence for its existence is observation of gravitational effects consistent with there being more mass in some volumes of space than is accounted for by the matter that we can see... The simplest and most obvious hypothesis is that it gravitates just like all other matter, and what makes it "dark" is just that it's not readily detectably through any of our traditional methods.

 

[Nugatory]

No, Hawking radiation is not particles it is electromagnetic radiation.

Oh? I thought it was a thermal mix of all particles. Photons just happen to be the most likely, due to having zero mass.

Khashishi is right...

Although for a stellar-mass black hole "most likely" is an huge enormous understatement. These things are radiating like a black body just barely above zero degrees Kelvin, and that's nowhere near energetic enough to have any discernible probability of producing massive particles. It gets more exciting with much smaller and hotter black holes.

 

[phinds]

Khashishi is right...

Thanks for that correction.