Black Hole Mass Flows: Is the Balance 0%?

[Islam Hassan]

Is the following breakdown possible with respect to the matter falling into a black hole:

+ Total Mass falling into BH per unit time 100%

- Mass-energy equivalent radiated from accretion disk -X%
- Mass-energy equivalent radiated as Hawking radiation -Y%
- Mass-energy equivalent ejected in relativistic jet -Z%

= Nil final mass-energy balance = 0%

 

[zhermes]

Yeah, sure.
It would have to be a small BH though.
And keep in mind that the energy radiated from the disk and jets is not energy from inside the BH.

 

[Islam Hassan]

Yeah, sure.
It would have to be a small BH though.
And keep in mind that the energy radiated from the disk and jets is not energy from inside the BH.

In that case a BH should die off as soon as there is no more sufficient mass to feed/sustain it, no?

IH

 

[zhermes]

Eventually, yes. But the emission of hawking radiation only radiates energy very slowly. Only very small BHs can evaporate this way.