Author

E. L. B. Junior

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Preprint Oct 2026

Optical Signatures of Black Holes Surrounded by a Generalized Cloud of Strings

In this work, we investigate the optical signatures of black holes surrounded by a generalized cloud of strings, described by the Letelier--Alencar spacetime. We first analyze null geodesics, showing that the string parameters can either increase or decrease the photon sphere radius and the critical impact parameter re...

M. V. de S. Silva, E. L. B. Junior, C. Pereira et al. · 0 citations