Abstract
Birkinshaw and Gull1 considered the perturbation of the cosmic background radiation by a moving gravitational lens (GL). An estimate of the maximum amplitude makes it seem possible that this effect may soon be observed, leading to the measurement of non-Hubble velocities of cosmological objects. Such measurements may become a significant test for cosmological models. We present here the general formula for this effect, which differs essentially from that in ref. 1.
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References
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Gurvits, L., Mitrofanov, I. Perturbation of the background radiation by a moving gravitational lens. Nature 324, 349–350 (1986). https://doi.org/10.1038/324349a0
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DOI: https://doi.org/10.1038/324349a0
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