Relativistic many body approach for unstable nuclei and supernova

We study the properties of unstable nuclei and the equations of state of nuclear matter in the framework of the relativistic many body theory. We take the relativistic mean field (RMF) theory as a phenomenological theory with several parameters, whose form is constrained by the successful microscopic theory (RBHF), and whose values are extracted by using the experimental values of unstable nuclei. We find the outcome with the newly obtained parameter set (TMA) is promising in comparison with various experimental data. We study also the neutron star profiles with the equation of state of nuclear matter with the use of TMA.