Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...377..263t&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 377, Aug. 10, 1991, p. 263-267.
Astronomy and Astrophysics
Astrophysics
50
Pulsars, Radio Frequencies, Radio Emission, Stellar Magnetospheres, Wave Propagation
Scientific paper
The dependence of component separation on observing frequency has been studied for seven pulsars that exhibit double- or multiple-component average profiles. In each case, a review of all available data shows a smooth variation of given form. No evidence is found for a 'break frequency' at which the separation behavior discretely changes. It is argued that previous reports of such a discontinuity are due to insufficiently sampled data together with a prejudice toward pure power-law functional behaviors. The absence of such a break has implications for theories of the pulsar emission mechanism and of the propagation of radio waves in the pulsar magnetosphere.
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