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Author: search.filters.author.Narlikar, J. V.Subject: search.filters.subject.Gravity

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    The bending of light by gravity
    (Physics News, 2015-04-10) Narlikar, J. V.
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    Lighter side of gravity
    (Proceedings of the GIREP Conference in Copenhagen, 1986-04-15) Narlikar, J. V.
    This talk presents a light-hearted look at the phenomenon of gravity, the most enigmatic of all known natural interactions. The fact that a major international society is wholly devoted towards understanding this basic interaction of nature is ample testimony to its intellectual challenges. The GR-meetings are held once every three years to bring together workers in the field to share their ignorance as well as expertise in the field of gravity. It would be presumptuous on my part to attempt to tell anything new to the experts gathered here. This evening I will stay away from the complexities and take a light hearted look at some ideas and phenomena that make gravity so peculiar.
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    Quasi-steady state cosmology : Theory and observations
    (Indian Academy of Sciences, 1999-12-14) Narlikar, J. V.
    This is a review of an alternative cosmology, recently proposed by Fred Hoyle, Geoffrey Burbidge and this author. It begins with a brief discussion of why one needs an alternative cosmology, when the standard hot big bang cosmology is claimed to be doing well. It is argued that the observational and theoretical constraints on the standard big bang cosmology, from various directions, leave a very narrow window, if any, in the parameter space of plausible models. There is thus a strong case for alternative cosmologies. The rest of the review concentrates on one alternative, the quasi steady state cosmology (QSSC) and summarises the recent work on this model. This includes, the theoretical formulation and simple exact solutions of the basic equations, their relationship to various observations, the stability of solutions and the toy model for understanding the growth of structures in the Universe.
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    Curriculum for the training of astronomers
    (Cambridge University Press, 1990-07-30) Narlikar, J. V.
    Teaching astronomy depends on deciding what to teach. In addition to a general discussion of desiderata, the papers in this section discuss particular programs in the U. K., China, Portugal, Hungary, and Brazil countries that are broadly representative of world astronomy. Some related papers appear in the chapter on the developing countries.
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    C-field cosmology: A possible solution to singularity, horizon and flatness problems
    (American Physical Society, 1985-10-15) Narlikar, J. V.; Padmanabhan, T.
    A solution of Einstein's equations which admits radiation and a negative-energy massless scalar creation field as a source is presented. It is shown that the cosmological model based on this solution satisfies all the observational tests and thus is a viable alternative to the standard big-bang model. The presentation model is from singularity and particle horizon and provides a natural explanation for the flatness problem. We argue that these features make the creation-field cosmological model theoretically superior to the big-bang model.