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Generalized Durgapal–Fuloria relativistic stellar models

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Abstract

We present a new class of closed-form solutions to the Einstein–Maxwell system of equations for a static spherically symmetric anisotropic star in the presence of an electric field by generalizing earlier approaches. The field equations are integrated by specifying the form of the electric field, anisotropic factor, and one of the gravitational potentials which are physically reasonable. We regain some of the earlier solutions of Durgapal and Fuloria (1985), Gupta and Maurya (2011) and Maurya et al. (2015) as special cases. A detailed physical analysis of the solution indicates the physical viability for modelling anisotropic charged superdense stars.

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Acknowledgements

The authors would like to thank the anonymous referee for constructive suggestions. The work of RS is supported by the MRP grant F.PSW-195/15-16 (ERO) of the UGC, India. RS also gratefully acknowledges support from the Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, India, under its Visiting Research Associateship Programme. RS is also grateful to Astrophysics and Cosmology Research Unit (ARCU), University of KwaZulu-Natal, South Africa, for its hospitality, where part of this work was carried out.

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Authors and Affiliations

  1. Department of Mathematical Sciences, Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai, 3000, Sri Lanka

    K. Komathiraj

  2. Department of Physics, Cooch Behar Panchanan Barma University, Cooch Behar, 736101, West Bengal, India

    Ranjan Sharma

  3. Department of Physics, P. D. Women’s College, Jalpaiguri, 735101, India

    Shyam Das

  4. Astrophysics and Cosmology Research Unit, School of Mathematics, Statistics and Computer Science, University of Kwazulu-Natal, Durban, South Africa

    Sunil D. Maharaj

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  1. K. Komathiraj
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  2. Ranjan Sharma
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  3. Shyam Das
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  4. Sunil D. Maharaj
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Correspondence to Ranjan Sharma.

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Komathiraj, K., Sharma, R., Das, S. et al. Generalized Durgapal–Fuloria relativistic stellar models. J Astrophys Astron 40, 37 (2019). https://doi.org/10.1007/s12036-019-9605-2

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  • DOI: https://doi.org/10.1007/s12036-019-9605-2

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