Compact Star Structure with a Cosmological Constant

Compact star structures are investigated in the framework of General Relativity using a modified TOV equation. The modified TOV equation is derived by incorporating the cosmological constant in the field equations. A quark equation of state signified by a bag constant is used to integrate the TOV equations. Depending on the choice of the cosmological constant and bag constant, stellar properties such as mass and radius of the compact star are found to change effectively. Also, we have obtained the mass-radius and mass-density relationship of compact star.