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The Calculation of the Volume of a Photon Sphere around a Black Hole
So, I chose this question for my chemistry assignment which is "How many moles of photons will it take to fill up the volume of the photon sphere around Sagittarius A". I realized there is ...
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Photon near a black hole - find distance of closest approach from impact parameter
I have the equation relating the impact parameter $b$ to the distance of closest approach $R$.
$R^3 - b^2R + 1 = 0$
which can be solved in python. I have a given $b$ and have to find $R$. however, ...
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Photons straight into black hole
What happens to a photon shot straight into a black hole? Does it gain infinite momentum before it crosses the horizon? If it has a finite momentum going in, then it would seem that a photon of the ...