Study of null geodesics and their stability in Horndeski black holes

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dc.article.number978
dc.catalogadorpva
dc.contributor.authorCarvajal Araya, Diego Adolfo
dc.contributor.authorGonzález, P. A.
dc.contributor.authorOlivares, Marco
dc.contributor.authorPapantonopoulos, Eleftherios
dc.contributor.authorVásquez, Yerko
dc.date.accessioned2025-09-29T20:20:52Z
dc.date.available2025-09-29T20:20:52Z
dc.date.issued2025
dc.date.updated2025-09-14T00:03:38Z
dc.description.abstractWe study the motion of particles in the background of a scalar–tensor theory of gravity in which the scalar field is kinetically coupled to the Einstein tensor, and we present the null geodesic structure for asymptotically flat, AdS, and dS Horndeski black holes, studying the effect of the cosmological constant on the orbits. Also, we consider three classical tests of gravity in the solar system, namely the bending of the light, the gravitational redshift, and the Shapiro time delay, in order to constraint the coupling parameters of the scalar field to gravity. Calculating the Lyapunov exponent, we explore the stability of these geodesics for various values of the cosmological constant.
dc.fechaingreso.objetodigital2025-09-14
dc.format.extent17 páginas
dc.fuente.origenBiomed Central
dc.identifier.citationThe European Physical Journal C. 2025 Sep 13;85(9):978
dc.identifier.doi10.1140/epjc/s10052-025-14646-4
dc.identifier.urihttps://doi.org/10.1140/epjc/s10052-025-14646-4
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/105818
dc.information.autorucInstituto de física; Carvajal Araya, Diego Adolfo; S/I; 1289356
dc.issue.numero9
dc.language.isoen
dc.nota.accesocontenido completo
dc.publisherSpringer Nature
dc.revistaThe European Physical Journal C
dc.rightsacceso abierto
dc.rights.holderThe Author(s)
dc.rights.licenseAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectAstrophysics
dc.subjectGeneral relativity
dc.subjectGravitational physics
dc.subjectMathematical physics
dc.subjectSpace physics
dc.subjectTheoretical astrophysics
dc.subject.ddc510
dc.subject.deweyMatemática física y químicaes_ES
dc.titleStudy of null geodesics and their stability in Horndeski black holes
dc.typeartículo
dc.volumen85
sipa.codpersvinculados1289356
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