A GENERAL RELATIVISTIC MODEL FOR SAX J1808.4-3658

Author:

SHARMA R.1,MUKHERJEE S.1,DEY MIRA2,DEY JISHNU3

Affiliation:

1. Department of Physics, North Bengal University, Darjeeling 734430, India

2. Department of Physics, Presidency College, Calcutta 700073, India

3. Azad Physics Centre, Maulana Azad College, Calcutta 700013, India

Abstract

We discuss the physical applicability of a model for a class of compact stars, employing Vaidya–Tikekar12 geometry of space–time. It is shown that the model can generate an equation of state (EOS) very similar to the one obtained by earlier workers for SAX J1808.4-3658 (SAX in short), assumed to be a strange star. The stellar configuration, as described by the model, is shown to be stable under radial perturbations. This may explain why the star SAX is known to be very stable compared to other low mass binary X-ray emitters.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Astronomy and Astrophysics,Nuclear and High Energy Physics

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