Light deflection in perturbed Friedmann universes
Year: 1994
Type: article
Abstract: A new formula for light deflection is dreived using only physically observable concepts. The general result is specialized to cosmological perturbation theory and expressed in terms of gauge-invariant perturbation variables. The resulting scalar, vector, and tensor equations are supplemented by simple examples for illustration. The gravity-wave example may be of more than academic interest and even represent an alternative way to detect gravitational waves.
Source: Physical Review Letters
Author: Ruth Durrer
Institutions: University of Zurich, Institute for Theoretical Physics
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2054429369