Beyond the Thin Lens Approximation

Simple item page
dc.creatorPyne, Ted
dc.creatorBirkinshaw, Mark
dc.date1994-05-10
dc.date.accessioned2026-07-07T02:19:10Z
dc.date.available2026-07-07T02:19:10Z
dc.descriptionWe obtain analytic formulae for the null geodesics of Friedmann-Lema\^ıtre-Robertson-Walker spacetimes with scalar perturbations in the longitudinal gauge. We use these to provide a rigorous derivation of the cosmological lens equation. We obtain an expression for the magnification of a bundle of light rays in these spacetimes without restriction to static or thin lens scenarios. We show how the usual magnification matrix naturally emerges in the appropriate limits.
dc.descriptionSubmitted to ApJl, 9 pages plus one figure (plain TeX)
dc.identifierhttps://arxiv.org/abs/astro-ph/9405021
dc.identifierhttp://arxiv.org/abs/astro-ph/9405021
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/9762
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleBeyond the Thin Lens Approximation
dc.typetext

Files

Collections

arXiv