Bianchi Type-VI0 Dark Energy Universe Supporting Accelerated Expansion of the Universe
Priyanka Garg1, Rashid Zia2, Anirudh pradhan3
1Priyanka Garg, Department of Mathematics, Institute of Applied Sciences & Humanities, GLA University, Mathura (Uttar Pradesh), India.
2Rashid Zia, Department of Mathematics, Institute of Applied Sciences & Humanities, GLA University, Mathura (Uttar Pradesh), India.
3Anirudh Pradhan, Department of Mathematics, Institute of Applied Sciences & Humanities, GLA University, Mathura (Uttar Pradesh), India.
Manuscript received on 07 April 2019 | Revised Manuscript received on 20 April 2019 | Manuscript published on 30 April 2019 | PP: 1758-1764 | Volume-8 Issue-6, April 2019 | Retrieval Number: F5052048619/19©BEIESP
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Abstract: In 1998, the surprising discovery of the accelerated expansion of our universe rather than the prior conviction that expansion rate of the universe is constant or decreasing, forced the researchers to construct such cosmological models, which support the accelerated expansion of the universe. In this attempt, there is a trend to modify the earlier models (supporting the constant rate of expansion), by assuming the time-dependent average scale factor . In the present paper also, we have revisited the dark energy (DE) model in Bianchi type-V I0 space-time under the new scenario of accelerated expansion of the universe, assuming the deceleration parameter (DP) q as a mapping linearly of the Hubble constant H. From this assumption wefind the time-dependent average scale factor which yields a timedependent , where k and β are arbitrary constants of integration. By using new constraints from SN Ia and BAO/CMB data (Giostri et al., JCAP, 2012), we obtain k = 0.00001 and β = 0.0062 for a cosmic deceleration to acceleration. Our model and its current range for DE, ω (EoS) parameter is observed to be in great concurrence with the ongoing SNeIa observations. For the derived model, we have calculated various physicals parameters also and found them supporting current observations
Keyword: Bianchi Type−V I0 Universe Dark Energy, Variable Deceleration Parameter, Accelerated Expansion.
Scope of the Article: Cryptography and Applied Mathematics