All Questions
Tagged with accretion-disk thermodynamics
4
questions
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What determines the black hole accretion rate?
There is clearly a natural timescale to accrete matter around a black hole given by the balance of pressure and gravity, known as the Eddington luminosity. However, as I understand it, this is really ...
- 1,291
3
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What causes the heating of a black hole's accretion disk?
Sheperd Doeleman said in a TED video that the accretion disk is heated by friction. Is that correct? I thought it might be adiabatic heating from the compression of the gasses.
- 384
2
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Why does the accretion disc radiate energy and matter?
Jets of matter and energy are powered by accretion disc i.e., matter spiralling into the massive black hole at the galactic centre. How is this jet formed? I think that the dust particles and gases ...
- 11.8k
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Dependence of the magneto-rotational instability (MRI) on thermal relaxation?
The MRI is the most efficient driver of turbulence in accretion discs (as measured by the effective scalar stress). The magnetic field, being properly coupled to the gas (weak coupling), connects the ...
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