Strange stars with realistic quark vector interaction and phenomenological density-dependent scalar potential

1998/10/01 by Mira Dey, Ignazio Bombaci, Jishnu Dey +3 · 16 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Cosmology and Gravitation Theories #Deconfinement #Pulsar #Pulsars and Gravitational Waves Research #Quark #Quark star #Scalar (mathematics) #Stars #Strange matter #Strange quark #astro-ph #hep-ph #nucl-th

paper · pdf · doi:10.1016/s0370-2693(98)00935-6

published as Phys.Lett. B438 (1998) 123-128; Addendum-ibid. B447 (1999) 352-353 · 11 Pages, 2 figures, On-line abstract changed and full reference given instead of tex- type. E-mail : [email protected], [email protected], Physics Letters B (in press)

openalex publication_date 1998/10/01 · arxiv created 1998/10/06 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We derive an equation of state (EOS) for strange matter, starting from an interquark potential which (i) has asymptotic freedom built into it, (ii) shows confinement at zero baryon density and deconfinement at high density and (iii) gives a stable configuration for chargeless, beta--stable quark matter. This EOS is then used to calculate the structure of Strange Stars, and in particular their mass-radius relation. Our present results confirm and reinforce the recent claim by Li et al (Astron. and Astrophys. 303 (1995) L1) and Bombaci (Phys.Rev. C55 (1997) 1587) that the compact objects associated with the x-ray pulsar Her X-1, and with the x-ray burster 4U 1820-30 are strange stars.

Citations

• Cosmic separation of phases
• Massive quarks in neutron stars
• Collapsed Nuclei

Cited by

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• Decoupling of pion coupling fπ from quarks at high density in three models, and its possible observational consequences
• The micro-glitch in PSR B1821−24: a case for a strange pulsar?
• Can stellar mass black holes be quark stars?
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• Gravitational wave asteroseismology reexamined
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