Abstract

In this paper, we investigate the gravitational behavior of compact objects with the help of generalized polytropic equation of state in isotropic coordinates. We found three exact solutions of Einstein field equations by taking into account the different values of polytropic index with spherically symmetric anisotropic inner fluid distribution. We have regained the masses of PSR J1614-2230, Vela X-1, Vela 4U, PSR J1903+327 and 4U 1820-30. Speed of sound has been used to analyze the stability of models. The comprehensive analysis indicates that all the models are physically viable and well behaved.

Details

Title
New classes of anisotropic models with generalized polytropic equation of state
Author
Mardan, S A 1 ; Noureen, I 1 ; Azam, M 2 ; Rehman, M A 1 ; Hussan, M 1 

 Department of Mathematics, University of Management and Technology, Lahore, Pakistan 
 University of Education, Lahore, Multan, Pakistan 
Pages
1-8
Publication year
2018
Publication date
Jun 2018
Publisher
Springer Nature B.V.
ISSN
14346044
e-ISSN
14346052
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2058248800
Copyright
The European Physical Journal C is a copyright of Springer, (2018). All Rights Reserved., © 2018. This work is published under http://creativecommons.org/licenses/by/4.0 (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.