Abstract
Motivated by the recent work of Rastkar et al. (in Astrophys. Space Sci. 337:487, 2012) the present study has attempted to study the role of f(G) gravity in the emergent universe. Different energy conditions are examined for the effective energy density and violation of strong energy condition is observed. Also, the behavior of the equation of state parameter is studied for the effective energy density and dark energy density. It is found that the equation of state parameter behaves like phantom in both of the cases.
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Acknowledgements
The authors sincerely acknowledge the constructive suggestion from the reviewer. The first author wishes to thank the Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, India for providing warm hospitality during a scientific visit in November, 2012, when part of the work was carried out. Financial support by Department of Science and Technology, Govt. of India, under Project Grant no. SR/FTP/PS-167/2011 is duly acknowledged by Surajit Chattopadhyay.
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Chattopadhyay, S., Ghosh, R. A study on the role of f(G) gravity on the emergent universe. Astrophys Space Sci 345, 11–15 (2013). https://doi.org/10.1007/s10509-013-1367-8
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DOI: https://doi.org/10.1007/s10509-013-1367-8