Regular Article - Theoretical Physics
Anisotropic strange star with Tolman–Kuchowicz metric under f(R, T) gravity
Department of Physics, Indian Institute of Engineering Science and Technology, Shibpur, B. Garden, 711103, Howrah, West Bengal, India
2 Bengal Engineering College Model School, IIEST Campus, Shibpur, B. Garden, 711103, Howrah, West Bengal, India
3 Department of Physics, Government College of Engineering and Ceramic Technology, 700010, Kolkata, West Bengal, India
4 Department of Natural Sciences, Maulana Abul Kalam Azad University of Technology, 741249, Haringhata, West Bengal, India
Accepted: 6 February 2020
Published online: 26 February 2020
In the current article, we study anisotropic spherically symmetric strange star under the background of f(R, T) gravity using the metric potentials of Tolman–Kuchowicz type (Tolman in Phys Rev 55:364, 1939; Kuchowicz in Acta Phys Pol 33:541, 1968) as and which are free from singularity, satisfy stability criteria and also well-behaved. We calculate the value of constants a, b, B and C using matching conditions and the observed values of the masses and radii of known samples. To describe the strange quark matter (SQM) distribution, here we have used the phenomenological MIT bag model equation of state (EOS) where the density profile () is related to the radial pressure () as . Here quark pressure is responsible for generation of bag constant . Motivation behind this study lies in finding out a non-singular physically acceptable solution having various properties of strange stars. The model shows consistency with various energy conditions, TOV equation, Herrera’s cracking condition and also with Harrison–Zeldovich–Novikov’s static stability criteria. Numerical values of EOS parameter and the adiabatic index also enhance the acceptability of our model.
© The Author(s) 2020
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Funded by SCOAP3