All Questions
Tagged with accretion-disk kerr-metric
3
questions
5
votes
2
answers
150
views
Is accretion disc caused by frame dragging?
Is accretion disc around a Kerr black hole the result of its frame dragging?
- 1,161
5
votes
1
answer
658
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Effective potential for Kerr geometry
In the review Foundations of Black Hole Accretion Disk Theory, the authors defines an effective potential for Kerr geometry as (Chap. 2, eqn. 23)
$$\mathcal{U}_{eff}=-\frac{1}{2}\ln\left|g^{tt}-2lg^{t\...
- 2,015
3
votes
1
answer
409
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Physical significance of angular velocity of orbits around Kerr black holes
For the Kerr metric $$ds^2=\left(g_{tt}-\frac{g_{t\phi}^2}{g_{\phi\phi}}\right)dt^2+g_{\phi\phi}\left(d\phi-\omega dt\right)^2+g_{rr}dr^2+g_{\theta\theta}d\theta^2$$ the angular momentum is defined as ...
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