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Effects of electric field and anisotropy on the mass-radius relationship of a particular class of compact stars

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Abstract

For a static, spherically symmetric, anisotropic and charged distribution of matter, we present a new class of exact solutions to the Einstein-Maxwell system. By assuming specific forms of the electric field and anisotropy, we transform the master equation of the Einstein-Maxwell system to Bessel and modified Bessel differential equations. The subsequent solutions turn out to be generalizations of the isotropic and uncharged stellar model of Finch and Skea (1989), the isotropic and charged stellar model of Hansraj and Maharaj (2006) and the anisotropic and charged stellar model of Maharaj et al. (2017). We analyze the physical viability of the solutions and utilize one particular class of solutions to examine the effects of charge and anisotropy on the mass-radius relationship of compact stars.

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Acknowledgements

RS gratefully acknowledges support from the Inter-University Centre for Astronomy and Astrophysics (IUCAA), Govt. of India, under its Visitor Associateship Programme.

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Authors and Affiliations

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

    K. Komathiraj

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

    Ranjan Sharma & Samstuti Chanda

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  1. K. Komathiraj
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  2. Ranjan Sharma
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  3. Samstuti Chanda
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Contributions

Authors’ contributions: (i) Komathiraj: Conceptualization, methodology, calculation; (ii) Sharma: Conceptualization, methodology, manuscript preparation, calculation, analysis; (iii) Chanda: Numerical calculation.

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Correspondence to Ranjan Sharma.

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K. Komathiraj and S. Chanda contributed equally to this work.

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Komathiraj, K., Sharma, R. & Chanda, S. Effects of electric field and anisotropy on the mass-radius relationship of a particular class of compact stars. Astrophys Space Sci 367, 86 (2022). https://doi.org/10.1007/s10509-022-04119-5

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  • DOI: https://doi.org/10.1007/s10509-022-04119-5

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