A new class of viable and exact solutions of EFE's with Karmarkar conditions: An application to cold star modeling

Abstract

In this work we present a theoretical framework within Einstein's classical general relativity which models stellar compact objects such as PSR J1614-2230 and SAX J1808.4-3658. The Einstein field equations are solved by assuming that the interior of the compact object is described by a class I spacetime. The so-called Karmarkar condition arising from this requirement is integrated to reduce the gravitational behaviour to a single generating function. By appealing to physics we adopt a form for the gravitational potential which is sufficiently robust to accurately describe compact objects. Our model satisfies all the requirements for physically realistic stellar structures.

14 pages, 15 figures

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• Probing into the Possible Range of the U Bosonic Coupling Constants in Neutron Stars Containing Hyperons