2004/01/31 by Paolo Cea · 5 citations
Earth and Planetary Sciences · Physics and Astronomy · #Astrophysical Phenomena and Observations #Compact star #Earth Systems and Cosmic Evolution #Electron #Neutron star #Pulsars and Gravitational Waves Research #Quark #Stars #Strange matter #astro-ph #gr-qc #hep-ph
paper · pdf · doi:10.1088/1475-7516/2004/03/011
published in Journal of Cosmology and Astroparticle Physics 2004(03), 011 (Institute of Physics) · 18 pages, 2 figures, revised version, to appear in JCAP
arxiv created 2004/03/17 · openalex publication_date 2004/03/31 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
P-stars are a new class of compact stars made of up and down quarks in β-equilibrium with electrons in a chromomagnetic condensate. P-stars are able to account for compact stars with R ≲6 km, as well as stars comparable to canonical neutron stars. We show that P-stars once formed are absolutely stable, for they cannot decay into neutron or strange stars. We convincingly argue that the nearest isolated compact stars RXJ1856.5-3754 and RXJ0720.4-3125 could be interpreted as P-stars with M ≃0.8 M ⊙ and R ≃5 km.