Are Radio Pulsars Strange Stars ?

Details Are Radio Pulsars Strange Stars ? Are Radio Pulsars Strange Stars ?

2000-11-21

arxiv.org/abs/astro-ph/0011386v2

Astronomy and Astrophysics, 375, 405-410 (2001)

Astronomy and Astrophysics

Astrophysics

v.2 : 12 pages including 3 figures and 2 tables, LaTex, uses epsfig. This version has one extra figure, few lines of new text

Scientific paper

10.1051/0004-6361:20010891

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.

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