Null Geodesics in Perturbed Spacetimes

Ted Pyne, Mark Birkinshaw

Research output: Contribution to journalArticle (Academic Journal)peer-review

54 Citations (Scopus)
286 Downloads (Pure)


We present a generalization and refinement of the Sachs-Wolfe technique which unifies many of the approaches taken to date and clarifies both the physical and the mathematical character of the method. We illustrate the formalism with a calculation of the behavior of light passing a moving lens on a Minkowski background.
Original languageEnglish
Pages (from-to)459-468
Number of pages10
JournalAstrophysical Journal
Publication statusPublished - 1 Oct 1993

Bibliographical note

Accepted : April 7, 1993


  • astro-ph
  • gr-qc

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