Other
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011acasn..52..180x&link_type=abstract
Acta Astronomica Sinica, vol. 52, no. 3, p. 180-189
Other
Pulsars: General, Polarization, Stars: Neutron
Scientific paper
The pulse profile widths of pulsars can be measured as: W_{pp} (peak-peak separation of two cone components), W_{50} (the full width at half of the maximum intensity), W_{10} (the full width at 10% of the maximum), W_{c50} (the width between the phases at 50% of the maxima of the two outer components) and W_{c10} (the width between the phases at 10% of the maxima the two outer components). These pulse widths are gotten by using profile data of 16 Conal Double pulsars and 7 Triple pulsars at 1.4 GHz. We derived the beam sizes (ρ) of those pulsars using the measured pulse widths, the magnetic inclination α and impact angle β, and then verified if ρ follows the relation with the pulsar period (P), i.e., ρ∝ P^{-0.5}. Through comparing the tightness of the correlations between ρ and P, we found that the pulse widths between the outer components (W_{c50}, W_{c10}) are better than the other three widths (W_{pp}, W_{50}, W_{10}), and W_{c50} is the best. We notice that for the cone-core triple profiles the trailing cone components are closer to the core components than the leading cone ones. The widths of the two cone components of these pulsars are roughly the same statistically.
Han Jian-Long
Wang Chenjie
Xu Jiajun
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