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Type: Artigo de periódico
Title: Searching for curvature pion radiation from protons in strongly magnetized pulsars
Author: Fregolente, D
Saa, A
Abstract: By using rather conservative estimates based on the simplest polar cap model, we search the ATNF Pulsar Catalogue for strongly magnetized stars that could accelerate relativistic protons up to the curvature pion production threshold. The best candidate turns out to be the 16 ms pulsar J0537-6910, but the corresponding characteristic parameter chi=a/m (p) is yet too small to give origin to observable signals. We show that, for pulsars with period Pa parts per thousand 1 ms, a surface polar magnetic field Ba parts per thousand 10(12) G is required in order to induce detectable curvature pion radiation from accelerated protons in the magnetosphere. Some other emission processes are also considered.
Subject: Pulsars
Neutron stars
Magnetic fields
High energy protons
Country: Holanda
Editor: Springer
Rights: fechado
Identifier DOI: 10.1007/s10509-011-0848-x
Date Issue: 2012
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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