Observational Tests of Neutron Star Relativistic Mean Field Equations of State

• Autorzy: Urbanec M. , Beták E. , Stuchlík Z.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

stars: neutron; equation of state; dense matter

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2010
• Tom: Vol. 60, No. 2
• Strony: 149--163
• Opis fizyczny: Bibliogr. 61 poz., wykr.

Twórcy

autor

Urbanec M.

• Institute of Physics, Silesian University, 74601 Opava, Czech Republic

autor

Beták E.

• Institute of Physics, Silesian University, 74601 Opava, Czech Republic
• Institute of Physics, Slovak Academy of Sciences, 84511 Bratislava, Slovakia

autor

Stuchlík Z.

• Institute of Physics, Silesian University, 74601 Opava, Czech Republic

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