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.

 

[pmacias]

I would say that the breakdown provided is possible, but it would depend on several factors. First, the mass-energy equivalent radiated from the accretion disk and as Hawking radiation would depend on the size and properties of the black hole, as well as the amount and type of matter falling into it. The mass-energy equivalent ejected in a relativistic jet would also depend on the strength of the black hole's magnetic field and the speed at which the jet is launched.

Additionally, it is important to note that these percentages are not fixed and can change over time. For example, as a black hole grows in mass, the percentage of matter falling into it may decrease as the gravitational pull becomes stronger and prevents some matter from entering. Similarly, the percentage of mass-energy ejected in a jet may increase as the black hole's magnetic field strengthens.

Overall, while the breakdown provided is possible, it is important to consider the dynamic and ever-changing nature of black holes and their surroundings. Further research and observations are needed to fully understand and accurately quantify the mass flows and balance in black holes.