Compact stars with specific mass function

作者：Maurya S K; Gupta Y K; Rahaman Farook; Rahaman Monsur; Banerjee Ayan

来源：Annals of Physics, 2017, 385: 532-545.

DOI：10.1016/j.aop.2017.08.005

• Embedding class one condition
• Specific mass function
• Anisotropic compact star

Aims: In the present work we search for a new model of compact star within embedding class one spacetime i.e., four dimensional spacetime embedded in five dimensional Pseudo Euclidean space.
Methods: In particular we propose a new mass function to obtain an exact analytic solutions of the Einstein field equations. For this specific mass function, obtained solutions are well-behaved at the centre of the star, satisfy all energy conditions and the mass-radius relation fall within the limit proposed by Buchdahl (1959).
Results: The static equilibrium condition has been maintained under different forces. We have discussed the solutions in detail and compare with a set of astrophysical objects like 4U1608-52, PSR J1903+327, PSR J1614-2230 and X-ray pulsar Vela X-1 is also explored.

• 出版日期2017-10