Anisotropic compact stars in Karmarkar spacetime. (January 2017)

• Record Type: Journal Article
• Authors: Newton Singh, Ksh.; Pant, Neeraj; Govender, M.
• Is Part Of: Chinese physics C. Volume 41:Number 1(2017:Jan.)
• Publication Date: 2017-01
• Subjects: 04.20.-q -- 04.40.Nr -- 04.40.Dg; general relativity -- exact solution -- embedding class I -- Karmarkar condition -- anisotropy -- compact stars; Particles (Nuclear physics) -- Periodicals; Nuclear physics -- Periodicals; 539.76
• DOI: 10.1088/1674-1137/41/1/015103
• Languages: English
• ISSNs: 1674-1137

Abstract

Abstract: We present a new class of solutions to the Einstein field equations for an anisotropic matter distribution in which the interior space-time obeys the Karmarkar condition. The necessary and sufficient condition required for a spherically symmetric space-time to be of Class One reduces the gravitational behavior of the model to a single metric function. By assuming a physically viable form for the grr metric potential we obtain an exact solution of the Einstein field equations which is free from any singularities and satisfies all the physical criteria. We use this solution to predict the masses and radii of well-known compact objects such as Cen X-3, PSR J0348+0432, PSR B0943+10 and XTE J1739-285.