RT Journal Article
T1 Geodesic completeness of effective null geodesics in regular space-times with non-linear electrodynamics
A1 Guerrero Román, Mercedes
A1 Olmo, Gonzalo J.
A1 Rubiera García, Diego
AB We study the completeness of light trajectories in certain spherically symmetric regular geometries found in Palatini theories of gravity threaded by non-linear (electromagnetic) fields, which makes their propagation to happen along geodesics of an effective metric. Two types of geodesic restoration mechanisms are employed: by pushing the focal point to infinite affine distance, thus unreachable in finite time by any sets of geodesics, or by the presence of a defocusing surface associated to the development of a wormhole throat. We discuss several examples of such geometries to conclude the completeness of all such effective paths. Our results are of interest both for the finding of singularity-free solutions and for the analysis of their optical appearances e.g. in shadow observations.
PB Springer
SN 1434-6044
YR 2023
FD 2023-09-07
LK https://hdl.handle.net/20.500.14352/103108
UL https://hdl.handle.net/20.500.14352/103108
LA eng
NO 2023 Descuento SCOAP
NO Ministerio de Ciencia e Innovación (España)
NO Agencia Estatal deInvestigación (España)
NO Generalitat Valenciana
NO European Union
DS Docta Complutense
RD 18 dic 2025