ANISOTROPIC COMPACT STARS WITH VARIABLE COSMOLOGICAL CONSTANT
Sk. Monowar HosseinDepartment of Mathematics, Aliah University, Sector - V, Salt Lake, Kolkata 700091, IndiaFarook RahamanDepartment of Mathematics, Jadavpur University, Kolkata 700032, West Bengal, IndiaJayanta NaskarMehedi KalamDepartment of Physics, Aliah University, Sector - V, Salt Lake, Kolkata 700091, IndiaSaibal RayDepartment of Physics, Government College of Engineering and Ceramic Technology, Kolkata 700010, West Bengal, India
2012en
ABI
Annotatsiya
Recently, the small value of the cosmological constant and its ability to accelerate the expansion of the universe is of great interest. We discuss the possibility of forming of anisotropic compact stars from this cosmological constant as one of the competent candidates of dark energy. For this purpose, we consider the analytical solution of Krori and Barua metric. We take the radial dependence of cosmological constant and check all the regularity conditions, TOV equations, stability and surface redshift of the compact stars. It has been shown as conclusion that this model is valid for any compact star and we have cited 4U 1820-30 as a specific example of that kind of star.
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