Frequency dependence of pulsar integrated profiles

Journal Article · Thu Aug 01 00:00:00 EDT 1991 · Astrophysical Journal; (United States)

DOI:https://doi.org/10.1086/170355· OSTI ID:5184738

Thorsett, S E ^[1]

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1. Princeton University, NJ (United States)

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. 44 refs.

• OSTI ID: 5184738
• Journal Information: Astrophysical Journal; (United States), Vol. 377; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
PULSARS
RADIOWAVE RADIATION
FREQUENCY DEPENDENCE
STELLAR MAGNETOSPHERES
VARIATIONS
WAVE PROPAGATION
ATMOSPHERES
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
RADIATIONS
STELLAR ATMOSPHERES
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources