The difference in light travel time between gravitational lens images. II - Theoretical foundations

Details The difference in light travel time between gravitational lens images. II - Theoretical foundations The difference in light travel time between gravitational lens images. II - Theoretical foundations

Nov 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...128..162b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 128, no. 1, Nov. 1983, p. 162-164. Sponsorship: Deutsche Forschungsgemeinschaf

Physics

Optics

24

Cosmology, Gravitational Lenses, Light Speed, Quasars, Equivalence, Geometrical Optics, Optical Paths, Wave Fronts

Scientific paper

The difference in light travel time between two images caused by a
gravitational lens may be calculated in two different ways: By using the
wavefront method or by integrating along the different lightpaths. The
author discusses both methods and proves their equivalence.

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