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Abstract

The possibility and the implications of the idea, that pulsars are born as strange stars, are explored. Strange stars are very likely to have atmospheres with typical mass of ~5×10-15Mȯbut bare polar caps almost throughout their lifetimes, if they are produced during supernova explosions. A direct consequence of the bare polar cap is that the binding energies of both positively and negatively charged particles at the bare quark surface are nearly infinity, so that the vacuum polar gap sparking scenario as proposed by Ruderman and Sutherland should operate above the cap, regardless of the sense of the magnetic pole with respect to the rotational pole. Heat cannot accumulate on the polar cap region due to the large thermal conductivity on the bare quark surface. We test this "bare polar cap strange star" (BPCSS) idea with the present broad band emission data of pulsars, and propose several possible criteria to distinguish BPCSSs from neutron stars. © 2001 Elsevier Science B.V.

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APA

Xu, R. X., Zhang, B., & Qiao, G. J. (2001). What if pulsars are born as strange stars? Astroparticle Physics, 15(1), 101–120. https://doi.org/10.1016/S0927-6505(00)00154-7

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