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Dec
2
comment Spin of black hole?
I only remember it as a theoretical result. The only physical scenario I can think of is if gas is funnelled to a supermassive black hole following a galactic collision and settles down into a disc, it could be aligned differently to the black hole spin. But as you say, this only tells you about the mutual orientation of the black hole and disc.
Dec
1
comment Spin of black hole?
If memory serves, the accretion dynamics depend on whether the accretion disc is co- or counter-rotating relative to the black hole's spin. So if the accretion disc extends to, say, the innermost stable circular orbit, I think you can work out which way the black hole's angular momentum is aligned.
Nov
16
answered Good books or resources for Stellar Astrophysics at graduate level?
Nov
12
reviewed Approve Computing covariance matrix of two mode state?
Sep
28
awarded  Popular Question
Sep
3
answered How do inert helium cores in sub giant stars create a pressure force?
Sep
3
comment What is the definition of the “stellar angular diameter” in stellar astronomy?
What in the Wikipedia article on angular diameter doesn't answer your question?
Aug
3
reviewed Approve biophysics tag wiki excerpt
Jul
19
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Jul
10
reviewed Approve If all motion is relative, how does light have a finite speed?
Jun
21
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Apr
16
reviewed Edit help calculate the Rydberg constant for hydrogen
Apr
16
revised help calculate the Rydberg constant for hydrogen
homework tag and fixed grammar
Apr
16
reviewed Approve Magnitude of the average velocity vector (not the average speed)
Apr
16
reviewed Approve Which one acts first: friction or tension?
Mar
22
answered How much mass is typically ejected from a supernova?
Mar
22
revised What is meant by a “stiff” or “soft” equation of state (wrt neutron stars)?
More appropriate formatting
Mar
11
reviewed Edit Existence of gusts of wind, an anomaly?
Mar
11
revised Existence of gusts of wind, an anomaly?
spelling in title
Feb
4
awarded  astrophysics