**Publication date:** Jun 2010

**Abstract:**

Set of neutron star observational results is used to test some selected

equations of state of dense nuclear matter. The first observational

result comes from the mass-baryon number relation for pulsar B of the

double pulsar system J0737-3039. The second one is based on the

mass-radius relation coming from observation of the thermal radiation of

the neutron star RX J1856.35-3754. The third one follows the population

analysis of isolated neutron star thermal radiation sources. The last

one is the test of maximum mass. The equation of state of asymmetric

nuclear matter is given by the parametrized form of the relativistic

Brueckner-Hartree-Fock mean field, and we test selected parametrization

that represent fits of full relativistic mean field calculation. We show

that only one of them is capable to pass the observational tests. This

equation of state represents the first equation of state that is able to

explain all the mentioned observational tests, especially the very

accurate test given by the double pulsar even if no mass loss is

assumed.

**Authors:**

Urbanec, M.; Beták, E.; Stuchlík, Z.;