https://doi.org/10.1140/epjc/s10052-017-4675-2
Regular Article - Theoretical Physics
A comparative study between EGB gravity and GTR by modeling compact stars
1
Department of Mathematics, Government General Degree College, Singur, Hooghly, West Bengal, 712 409, India
2
Department of Mathematics, Faculty of Applied Sciences, Durban University of Technology, Durban, 4000, South Africa
3
Department of Physics, P. D. Women’s College, Jalpaiguri, 735101, India
* e-mail: piyalibhar90@gmail.com
Received:
22
August
2016
Accepted:
3
February
2017
Published online:
16
February
2017
In this paper we utilise the Krori–Barua ansatz to model compact stars within the framework of Einstein–Gauss–Bonnet (EGB) gravity. The thrust of our investigation is to carry out a comparative analysis of the physical properties of our models in EGB and classical general relativity theory with the help of graphical representation. From our analysis we have shown that the central density and central pressure of EGB star model is higher than the GTR star model. The most notable feature is that for both GTR and the EGB star model the compactness factor crosses the Buchdahl (Phys Rev 116:1027, 1959) limit.
© The Author(s), 2017
