2002/04/30 by D. G. Yakovlev, A. D. Kaminker, P. Haensel +2 · 3 citations
Earth and Planetary Sciences · Physics and Astronomy · #Astrophysics #Core (optical fiber) #Electron #Gamma-ray bursts and supernovae #Geophysics and Gravity Measurements #Neutron #Neutron star #Nuclear physics #Optics #Physics #Pulsar #Pulsars and Gravitational Waves Research #Supernova #Vela #astro-ph
paper · pdf · doi:10.1051/0004-6361:20020699
published as Astron.Astrophys. 389 (2002) L24 · 3 pages, 2 figures, AA Letters (submitted)
arxiv created 2002/05/13 · openalex publication_date 2002/06/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The upper limit on the effective surface temperature of the neutron star (NS) PSR J0205+6449 in the supernova remnant 3C 58 obtained recently by Slane et al. ([CITE]) is analyzed using a modern theory of NS cooling (Kaminker et al. [CITE]). The observations can be explained by cooling of a superfluid NS with the core composed of neutrons, protons, and electrons, where direct Urca process is forbidden. However, combined with the data on the surface temperatures of other isolated NSs, it gives evidence (emphasized by Slane et al.) that direct Urca process is open in the inner cores of massive NSs. This evidence turns out to be less stringent than that provided by the well known observations of Vela and Geminga.