Browsing by Author "Narlikar, J.V."

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    The quasi- steady state cosmology: A study of angular size against redshift
    (2015-03-01) Banerjee, S.K.; Narlikar, J.V.
    The data on angular sizes and redshifts of ultracompact radio sources used by Jackson and Dodgson in a recent paper have been applied to the various theoretical models in the framework of the quasi-steady state cosmology proposed by Hoyle, Burbidge and Narlikar. It is found that although acceptable fits to the data are available for the fiat models, those with a negative curvature of spatial sections provide a better fit. These latter models require low densities of matter and as such do not demand too high a proportion of dark matter. A comparison is made with the work of Jackson and Dodgson and theoretical implications of the test are discussed.
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    Structure formation in the Quasi-Steady state cosmology: A toy model
    (2015-03-01) Nayeri, Ali; Engineer, Sunu; Narlikar, J.V.; Hoyle, F.
    The problem of formation of large scale structure is discussed within the framework of the Quasi-Steady State Cosmology (QSSC) . The primary process of creation of matter and the resulting dynamics of ejection of matter from regions of strong gravitational fields plays a key role. To understand its working, a toy model is used, in which from a set of randomly distributed creation centres a new generation of centres is created as part of an iterative algorithm. It is shown that the system develops clusters and voids along with filamentary structure, within a few iterations. The two point correlation function and density distribution function for these simulations are shown to reproduce the observed clustering of the large scale structure in the real universe.