LRS Bianchi type-II universe with cosmic strings and bulk viscosity in a modified theory of gravity |
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| Authors: | D R K Reddy R L Naidu K Dasu Naidu T Ram Prasad |
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| Institution: | 1. Department of Science and Humanities, M. V. G. R. College of Engineering, Vizainagaram, Andhra Pradesh, India
2. Department of Basic Science and Humanities, GMR Institute of Technology, Rajam, 532127, Andhra Pradesh, India
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| Abstract: | A locally rotationally symmetric (LRS) Bianchi type-II space-time is considered in the frame work of a modified theory of gravitation proposed by Harko et al. (Phys. Rev. D 84:024020, 2011) when the source for energy momentum tensor is a bulk viscous fluid containing one dimensional cosmic strings. A barotropic equation of state is assumed to get a determinate solution of the field equations. Also, the bulk viscous pressure is assumed to be proportional to the energy density. The physical behavior of the model is also discussed. |
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