Constraints on the equation of state for neutron stars from fast rotating pulsars

作者: Xuejun Wu , Michael Soffel , Hans Ruder , Béla Waldhauser , Horst Stöcker

DOI: 10.1007/978-1-4613-0583-5_58

关键词: PhysicsAstronomyNeutron starSupernovaPulsarX-ray pulsarEquation of stateAstrophysics

摘要: We analyze the restriction on equation of state for neutron stars given by more or less known masses (1.445 ± 0.007M ⊙ and 1.85 0.30M ⊙) also frequencies fast rotating pulsars like PSR1957+20 (Ω = 4033 Hz) perhaps a newborne pulsar in supernova SN1987A 12369 Hz), where latter one is seen only group 8 hours then never again. Softer equations generally yield stable lower mass, while stiffer ones are leading to heavier stars.

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