Asymmetric depolarization in double radio sources with one-sided jets

Details Asymmetric depolarization in double radio sources with one-sided jets Asymmetric depolarization in double radio sources with one-sided jets

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.250..171g&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 250, May 1, 1991, p. 171-197.

Astronomy and Astrophysics

Astronomy

118

Depolarization, Extragalactic Radio Sources, Radio Jets (Astronomy), Asymmetry, Flux Density, Polarized Electromagnetic Radiation, Quasars, Radio Galaxies, Very Large Array (Vla)

Scientific paper

Total intensity and polarization maps at wavelengths of 6 and 20 cm are presented for 47 double radio sources with one-sided jets. There is a strong asymmetry in the degree of depolarization between lambda 6 and 20 cm: of the 37 sources with significant depolarization, 34 show less depolarization on the jet side than on the counter-jet side. There is also a significant asymmetry in the spectral index of the two sides: the jet-side spectral index is flatter by typically Delta-alpha = 0.1. By comparison, the asymmetries in flux density, peak brightness and separation from the nucleus are minor, and cannot be significant contributors to the depolarization asymmetry.

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