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black hole question

hoola
in Modern and Theoretical Physics

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how would neutrinos interact with an encounter with a black hole? Are they capable of a closer orbit to the event horizon without falling in due to the negligible mass, or would that matter? thanks

22 minutes ago, hoola said:

how would neutrinos interact with an encounter with a black hole? Are they capable of a closer orbit to the event horizon without falling in due to the negligible mass, or would that matter? thanks

They would interact like anything else really. If they fell in they would add to the mass of the black hole. If they went past, they would be deflected (like gravitational lensing). 

They could orbit just outside the photon sphere because they have so little mass and typically travel at near the speed of light. (That is 1.5 times the event horizon radius.) But that would probably not be stable; the smallest fluctuation would send them towards or away from the black hole.

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