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Title:
Frequency dependence of pulsar integrated profiles
Authors:
Thorsett, S. E.
Affiliation:
AA(Princeton University, NJ)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 377, Aug. 10, 1991, p. 263-267. (ApJ Homepage)
Publication Date:
08/1991
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Pulsars, Radio Frequencies, Radio Emission, Stellar Magnetospheres, Wave Propagation
DOI:
10.1086/170355
Bibliographic Code:
1991ApJ...377..263T

Abstract

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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