Articles written in Pramana – Journal of Physics
Volume 96 All articles Published: 22 September 2022 Article ID 0183 Research Article
Models for charged relativistic spheres via hyper-geometric equations
SUNTHARALINGAM THIRUKKANESH ISHARA SAPARAMADU RANJAN SHARMA SOUMIK BHATTACHARYA
Exact solutions to Einstein–Maxwell systems play an important role in relativistic astrophysics. In this paper, a new technique to generate exact solutions to the Einstein–Maxwell system is proposed.
Corresponding to a spherically symmetric charged fluid sphere, by specifying the electric field and for a particular form of the metric potential grr , a new solution is obtained in terms of hypergeometric functions.
Subsequently, for specific choice of model parameters, many closed-form solutions are developed. In the process, it is possible to regain a number of well-known stellar models which had been developed
earlier with or without the presence of charge following the Vaidya and Tikekar ansatz for compact stars (
Volume 97, 2023
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