Eur. Phys. J. C (2016) 76: 693
https://doi.org/10.1140/epjc/s10052-016-4527-5

Regular Article - Theoretical Physics

Generalised model for anisotropic compact stars

¹ Department of Mathematical and Physical Sciences College of Arts and Science, University of Nizwa, Nizwa, Sultanate of Oman
² Department of Mathematics, Raj Kumar Goel Institute of Technology, Ghaziabad, Uttar Pradesh, India
³ Department of Physics, Government College of Engineering and Ceramic Technology, Kolkata, West Bengal, 700010, India
⁴ Department of Physics, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal, 711103, India

^* e-mail: saibal@associates.iucaa.in

Received: 1 July 2016
Accepted: 20 November 2016
Published online: 18 December 2016

Abstract

In the present investigation an exact generalised model for anisotropic compact stars of embedding class 1 is sought with a general relativistic background. The generic solutions are verified by exploring different physical aspects, viz. energy conditions, mass–radius relation, stability of the models, in connection to their validity. It is observed that the model presented here for compact stars is compatible with all these physical tests and thus physically acceptable as far as the compact star candidates RXJ 1856-37, SAX J 1808.4-3658 (SS1) and SAX J 1808.4-3658 (SS2) are concerned.