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arXiv · 1401.0835

Analytical model of strange star in the low-mass X-ray binary 4U 1820-30

Mehedi Kalam·Farook Rahaman·Sajahan Molla·Md. Abdul Kayum Jafry·Sk. Monowar Hossein
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Abstract

In this article, we have proposed a model for a realistic strange star under Tolman VII metric\citep{Tolman1939}. Here the field equations are reduced to a system of three algebraic equations for anisotropic pressure. Mass, central density and surface density of strange star in the low-mass X-ray binary 4U 1820-30 has been matched with the observational data according to our model. Strange materials clearly satisfies the stability condition (i.e. sound velocities < 1) and TOV-equation. Here also surface red shift of the star has been found to be within reasonable limit.

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Mehedi Kalam, Farook Rahaman, Sajahan Molla, Md. Abdul Kayum Jafry, Sk. Monowar Hossein. 2014-07-19. Analytical model of strange star in the low-mass X-ray binary 4U 1820-30. https://doi.org/10.1140/epjc%2Fs10052-014-2971-7

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