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Apr
19
awarded  Popular Question
Apr
7
awarded  Nice Question
Jan
28
awarded  Good Question
Jan
6
comment What is the temperature of an accretion disc surrounding a supermassive black hole?
Yes, like something you can on page 9 of your reference.
Jan
6
comment What is the temperature of an accretion disc surrounding a supermassive black hole?
I imagine, it would be more interesting to see this equation in number form.
Nov
2
awarded  Nice Answer
Oct
10
awarded  Nice Question
Oct
6
reviewed Approve What scientific evidence is there to support or refute the Iron Sun Hypothesis?
Oct
3
awarded  Custodian
Oct
3
reviewed Reject Does the Sun belong to a constellation?
Sep
30
awarded  Explainer
Sep
26
awarded  Yearling
Aug
24
comment With gravitational lensing, is it possible to mathematically compute the correct image of the galaxy that is being distorted?
Agreed with 1), but not yet with 2). Consider a continuous background image like CMB. How would that be not a problem?
Aug
22
comment With gravitational lensing, is it possible to mathematically compute the correct image of the galaxy that is being distorted?
1) You might not know the lens mass distribution (would it all still be possible?), 2) Even on the famous Hubble photo you see that one same object may give two images.
Aug
19
comment With gravitational lensing, is it possible to mathematically compute the correct image of the galaxy that is being distorted?
"That would be possible theoretically." - can you prove it/give a reference? Or in other words, given a well resolved image of gravitationally lensed object, how would one go about reconstructing the original?
Aug
4
accepted Generalised planets?
Aug
4
comment Generalised planets?
Greatly many thanks for a very good and interesting reply!
Jul
2
awarded  Curious
Jun
16
answered How would the night sky look from inside a globular cluster?
Jun
15
comment How are black holes found?
You should definitely check the time it would take for a three solar mass black hole to evaporate.