- #1
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Quick question: is there a general formula for the redshift zC[g] for a photon traveled in a spacetime with arbitrary metric g along a light-like geodesic C?
I do neither want to use a special symmetry for g (spherical, homogeneous and isotropy) nor do I want to use a specific expression for g, like FRW metric or whatever.
I do neither want to use a special symmetry for g (spherical, homogeneous and isotropy) nor do I want to use a specific expression for g, like FRW metric or whatever.