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Title:
A model for the magnetic-field structure in extended radio sources
Authors:
Laing, R. A.
Affiliation:
AA(Mullard Radio Astronomy Observatory, Cambridge, England)
Publication:
Royal Astronomical Society, Monthly Notices, vol. 193, Nov. 1980, p. 439-449. Research supported by the Science Research Council and Cambridge University. (MNRAS Homepage)
Publication Date:
11/1980
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
ASTRONOMICAL MODELS, MAGNETIC FIELD CONFIGURATIONS, RADIO SOURCES (ASTRONOMY), CRAB NEBULA, EXTRAGALACTIC RADIO SOURCES, POLARIZATION CHARACTERISTICS
Comment:
A&AA ID. AAA028.141.108
Bibliographic Code:
1980MNRAS.193..439L

Abstract

This paper describes a model for the magnetic-field configuration in extended radio sources in which an initially random field has been compressed or sheared to lie entirely in one plane. The polarization properties of radiation from electrons in such a field are evaluated and the expected degree and direction for some simple geometries are derived. The predictions of the model are in good agreement with observations of extragalactic radio sources and of the filaments in the Crab Nebula.

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