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Volume 2
J Chem Tech App 2018, Volume 2
COSMOLOGICAL MODELS WITH BVDP
Ravi Kant Mishra
SLIET, INDIA
T
he observed value of the deceleration parameter (DP) is always interesting in cosmology: The study of cosmological models
with time dependent DP attracts cosmologists more after the discovery of accelerating expansion of the universe confirmed
by Perlmutter & Riess
et.al.[1-2] An idea of variable deceleration parameter is much important to measure the expansion rate of
the universe. In this reference several authors have proposed many laws for DP including my peer research group [3]. In this study
cosmological models with BVDP will be discussed. [1] Perlmutter, S., et al.: Discovery of a supernova explosion at half the age of
the universe. Nature 391, 51 (1998). [2] Riess, A. G., et al.: Observational evidence from Supernova for an accelerating universe
and cosmological constant. Astrophys. J. 116 1009 (1998). [3]: Mishra, R. K., et al. Cosmological models in alternate theory of
gravity with bilinear deceleration parameter. Astrophys. Space Sci. 361, 259 (2016).