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A 4D spacetime embedded in a 5D pseudo-Euclidean space describing interior of compact stars

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Abstract.

The present paper provides a new model of compact stars satisfying the Karmarkar condition. The model is obtained by assuming a new type of metric potential for \(g_{rr}\) from the condition of embedding class I. The model parameters are obtained accordingly by employing the metric potentials to Einstein's field equations. Our model is free from geometric singularity and satisfies all the physical conditions. The obtained mass and radius of the compact stars Cen X-3, EXO 1785-248 and SAX 1808.4-3658 obtained from the model are consistent with the observational data of T. Gangopadhyay et al.. Detailed analyses of these neutron stars (Cen X-3, EXO 1785-248 and SAX 1808.4-3658) are also given with the help of graphical representations.

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Authors and Affiliations

  1. Department of Physics, National Defence Academy, Pune-411023, Khadakwasla, India

    Ksh. Newton Singh

  2. Department of Mathematics and Natural Sciences, BRAC University, 1212, Dhaka, Bangladesh

    Mohammad Hassan Murad

  3. Department of Mathematics, National Defence Academy, Pune-411023, Khadakwasla, India

    Neeraj Pant

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  1. Ksh. Newton Singh
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  2. Mohammad Hassan Murad
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  3. Neeraj Pant
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Correspondence to Neeraj Pant.

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Communicated by D. Blaschke

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Singh, K.N., Murad, M.H. & Pant, N. A 4D spacetime embedded in a 5D pseudo-Euclidean space describing interior of compact stars. Eur. Phys. J. A 53, 21 (2017). https://doi.org/10.1140/epja/i2017-12210-1

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