**Publication date:** May 2008

**Abstract:**

The equations of state (EoS) of relativistic asymmetric nuclear matter

are obtainable from assumed form of the interaction Lagrangian. They are

one of important inputs to describe the neutron stars. The structure of

the neutron stars, i.e. the density of matter and the pressure as

functions of radial distance starting from their values at the center of

a star, is straightforwardly dependent on EoS. Similarly, a limitation

on the total mass of the neutron star can be obtained therefrom. Thus,

EoS and the underlying nucleon interactions can be tested also by the

means of astronomical observations.

**Authors:**

Urbanec, M.; Běták, E.; Stuchlík, Z.;