Are Radio Pulsars Strange Stars ?
arXiv:astro-ph/0011386 · doi:10.1051/0004-6361:20010891
Abstract
A remarkably precise observational relation for pulse core component widths of radio pulsars is used to derive stringent limits on pulsar radii, strongly indicating that pulsars are strange stars rather than neutron stars. This is achieved by inclusion of general relativistic effects due to the pulsar mass on the size of the emission region needed to explain the observed pulse widths, which constrain the pulsar masses to be less than 2.5 Solar masses and radii to be smaller than 10.5 km.
arXiv commentv.2 : 12 pages including 3 figures and 2 tables, LaTex, uses epsfig. This version has one extra figure, few lines of new text and typos fixed
References in corpus (11)
- Composition and Structure of Protoneutron Stars
- Neutron Star Mass Measurements. I. Radio Pulsars
- Strange Stars with Realistic Quark Vector Interaction and Phenomenological Density-dependent Scalar Potential
- Is SAX J1808.4-3658 a Strange Star ?
- The Disk-Magnetosphere Interaction in the Accretion-Powered Millisecond Pulsar SAX J1808.4-3658
- PSR 0943+10: a bare strange star?
- The imprint of the equation of state on the axial w-modes of oscillating neutron stars
- On the nature of the compact star in 4U 1728-34
- Roles of Hyperons in Neutron Stars
- Neutron star properties with relativistic equations of state
- Lower Limit on Radius as a Function of Mass for Neutron Stars
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- Anisotropic Compact stars in the Buchdahl model: A comprehensive study
- Regimes of Pulsar Pair Formation and Particle Energetics
- Quark matter symmetry energy and quark stars
- Maximum mass of a cold compact star
- Formation of Sub-millisecond Pulsars and Possibility of Detection
- Isovector properties of quark matter and quark stars in an isospin-dependent confining model
- Stability of strange stars (SS) derived from a realistic equation of state
- Bare strange quark stars: formation and emission
- Effects of anisotropy on strongly magnetized neutron and strange quark stars in general relativity