Second Order Geodesic Corrections to Cosmic Shear

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dc.creatorDodelson, S.
dc.creatorKolb, E. W.
dc.creatorMatarrese, S.
dc.creatorRiotto, A.
dc.creatorZhang, P.
dc.date2005-03-07
dc.date.accessioned2026-07-07T11:29:36Z
dc.date.available2026-07-07T11:29:36Z
dc.descriptionWe consider the impact of second order corrections to the geodesic equation governing gravitational lensing. We start from the full second order metric, including scalar, vector and tensor perturbations, and retain all relevant contributions to the cosmic shear corrections that are second order in the gravitational potential. The relevant terms are: the nonlinear evolution of the scalar gravitational potential, the Born correction, and lens-lens coupling. No other second order terms contribute appreciably to the lensing signal. Since ray-tracing algorithims currently include these three effects, this derivation serves as rigorous justification for the numerical predictions.
dc.description6 pages
dc.identifierhttps://arxiv.org/abs/astro-ph/0503160
dc.identifierhttp://arxiv.org/abs/astro-ph/0503160
dc.identifierPhys.Rev.D72:103004,2005
dc.identifierdoi:10.1103/PhysRevD.72.103004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196763
dc.subjectAstrophysics
dc.titleSecond Order Geodesic Corrections to Cosmic Shear
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