Redshift Fluctuations arising from Gravitational Waves

Details Redshift Fluctuations arising from Gravitational Waves Redshift Fluctuations arising from Gravitational Waves

Jul 1970

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970natur.227..157k&link_type=abstract

Nature, Volume 227, Issue 5254, pp. 157-158 (1970).

Physics

Optics

20

Scientific paper

IT is well known that when light travels through a gravitational field, the field acts like a refracting medium. Even though space may be empty in the sense that the components of the Ricci tensor vanish, we still expect an effect on the propagation of light as suggested by Maxwell's equations where F μv is the electromagnetic field tensor and R μvαβ is the Riemann-Christoffel curvature tensor1. If the space between a source of photons and an observer is filled with gravitational radiation, we then expect fluctuations in the appearance of the source analogous to the twinkling of starlight as seen through the Earth's atmosphere. Changes in the apparent luminosity and position of a source due to gravitational waves have been examined in the geometrical optics limit by Zipoy2. Here I shall concern myself with fluctuations in the redshift.

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