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A generalized class one static solution

In literature, there are three simplest methods of solving Einstein's field equations, namely, (a) assuming conformally flat spacetime, (b) using conformal killing vector and (c) using Karmarkar conditions. In all these approaches the two metric functions [Formula: see text] and [Formula: see t...

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Detalles Bibliográficos
Autores principales: Singh, Ksh. Newton, Bhar, Piyali, Laishram, Modhuchandra, Rahaman, Farook
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6700344/
https://www.ncbi.nlm.nih.gov/pubmed/31440586
http://dx.doi.org/10.1016/j.heliyon.2019.e01929
Descripción
Sumario:In literature, there are three simplest methods of solving Einstein's field equations, namely, (a) assuming conformally flat spacetime, (b) using conformal killing vector and (c) using Karmarkar conditions. In all these approaches the two metric functions [Formula: see text] and [Formula: see text] are link via a bridge. However, the first two approaches are facing a critical failure while determining central red-shift while the last method always yields well-behaved solution. Therefore, we are adopting the last method and discover a generalized class one solution. It is found that the maximum mass and radius of the compact star describe by the solution strongly depends on the parameter n. As n increases the maximum mass and radius also increases. For [Formula: see text] , [Formula: see text] and [Formula: see text] , and for [Formula: see text] have [Formula: see text] with [Formula: see text]. For [Formula: see text] the equation of state is behaving linearly as the speed of sound is almost constant at 0.333. In overall the presented solution is well-behaved in all respects.