Browsing by Author "Vigier, J. P."

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    Does a possible laboratory observation of a frequency anisotropy of light result from a non-zero photon mass m?
    (Elsevier Science Publishers, 1991-04-08) Narlikar, J. V.; Pecker, J. C.; Vigier, J. P.
    Assuming a priori the existence of a non-zero photon rest-mass m1>0 and justifying this assumption, we can predict the exisence of an anisotropy in velocity and frequency of light in the direction ofthe apex ofthe 3 K background cosmic radiation field. Since this frequency shift can now be tested in the laboratory, it is important to improve the precision ofthese measurements in Order to check our predictions. Its possible confirmation implies indeed the definition of an absolute evolution parameter in the rest frame Σ0 of this 3 K background microwave radiation.
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    Some consequences of a spatially varying cosmological constant in a spherically symmetric distribution of matter
    (Indian Academy of Sciences, 1990-12-10) Narlikar, J. V.; Pecker, J. C.; Vigier, J. P.
    This paper investigates the effects of the spatial variation of the cosmological constant Λ on the spacetime geometry within and outside a massive object. It is seen that the variation of Λ with the radial coordinate introduces non-trivial changes leading to spacetime closing on itself around a massive object. It may also be possible to generate interior solutions that lead to flat rotation curves of galaxies.