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Title:
A systematic asymmetry in the polarization properties of double radio sources with one jet
Authors:
Garrington, S. T.; Leahy, J. P.; Conway, R. G.; Laing, R. A.
Affiliation:
AA(Manchester, Victoria University, Jodrell Bank, England), AB(Manchester, Victoria University, Jodrell Bank, England), AC(Manchester, Victoria University, Jodrell Bank, England), AD(Royal Greenwich Observatory, Herstmonceux, England)
Publication:
Nature (ISSN 0028-0836), vol. 331, Jan. 14, 1988, p. 147-149. (Nature Homepage)
Publication Date:
01/1988
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
DEPOLARIZATION, EXTRAGALACTIC RADIO SOURCES, POLARIZATION CHARACTERISTICS, RADIO JETS (ASTRONOMY), ASYMMETRY, DOPPLER EFFECT
DOI:
10.1038/331147a0
Bibliographic Code:
1988Natur.331..147G

Abstract

New observations are reported which establish that, in high-luminosity extragalactic radio sources, the jet side depolarizes less rapidly with increasing wavelength than the opposite side. If the jet one-sidedness is intrinsic, this depolarization most probably occurs internally, but if the one-sidedness is due to Doppler beaming, the depolarization must occur in a foreground screen. Further detailed polarization observations, which can determine whether the depolarization in such sources is internal or external, should therefore settle whether jets are intrinsically or only apparently one-sided.
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