MAXIMUM MASS OF A CLASS OF COLD COMPACT STARS

R. SHARMA, S. KARMAKAR, S. MUKHERJEE
2006 International Journal of Modern Physics D  
We calculate the maximum mass of the class of compact stars described by Vaidya-Tikekar VT01 model. The model permits a simple method of systematically fixing bounds on the maximum possible mass of cold compact stars with a given value of radius or central density or surface density. The relevant equations of state are also determined. Although simple, the model is capable of describing the general features of the recently observed very compact stars. For the calculation, no prior knowledge of
more » ... he equation of state (EOS) is required. This is in contrast to the earlier calculations for maximum mass which were done by choosing first the relevant EOSs and using those to solve the TOV equation with appropriate boundary conditions. The bounds obtained by us are comparable and, in some cases, more restrictive than the earlier results.
doi:10.1142/s0218271806008012 fatcat:ngowu76cfvf6hiph7zkahmoohq