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gr-qc2023★ 2 cited
On equipotential photon surfaces in (electro-)static spacetimes of arbitrary dimension
Carla Cederbaum, Sophia Jahns, Olivia Vičánek Martínez
We study timelike, totally umbilic hypersurfaces -- called photon surfaces -- in -dimensional static, asymptotically flat spacetimes, for . First, we give a complete…
gr-qc2023★ 5 cited
Some new perspectives on the Kruskal--Szekeres extension with applications to photon surfaces
Carla Cederbaum, Markus Wolff
It is a well-known fact that the Schwarzschild spacetime admits a maximal spacetime extension in null coordinates which extends the exterior Schwarzschild region past the Killing h…