Bulk Properties Of Stars Research Articles

Metastable and stable equilibrium states of stellar electron-nuclear plasmas

By minimizing free energy density, we show that the stellar core of a hydrogen burning star is not in a global thermodynamical equilibrium unless density, temperature, mass and composition assume given values. The core (as the solar interior) can more appropriately be viewed as a metastable state with very long lifetime. Slightly non-extensive distribution function could be the natural distribution for a weakly non-ideal plasma like a stellar core and represents a more appropriate approximation to this system than a Maxwellian distribution, without affecting bulk properties of stars.

Rotating compact objects with magnetic fields

We consider here the structure of rotating compact objects endowed with a magnetic field in general relativity as models of pulsars. We discuss the structure of rotating stars in the framework of Hartle, taking different realistic equations of state, and study their effects on bulk properties of stars. We consider the possibility of rotating stars with a quark matter core. We also analyse the structure of the magnetic field in the interior of the star, as affected by different equations of state, as well as due to rotation.