Analytical model on mass limit of strange stars

Abstract

In this paper, we present a new kind of stellar model using the Nariai IV metric. This model can be used to study the strange/quark stars(which is our present interest, though it can also be applicable to neutron stars). We present a mass-radius region where all the regularity conditions, energy conditions, the TOV equation, and stability conditions are satisfied. According to our model, strange stars having mass up to $1.9165M_{\odot }(=2.81km)$ is stable. A strange star having a mass greater than $1.9165M_{\odot }$ violates the stability conditions. This model can be very useful to predict the radius of strange stars of mass greater than $1M_{\odot }$.

Comments: 12 pages, 10 figures, 2 tables; Accepted in Astrophysics and Space Science