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Broad-band radio circular polarization spectrum of the relativistic jet in PKS B2126-158

O'Sullivan, S.P.; McClure-Griffiths, Naomi; Feain, I; Gaensler, B M; Sault, Robert J


We present full Stokes radio polarization observations of the quasar PKS B2126−158 (z = 3.268) from 1 to 10 GHz using the Australia Telescope Compact Array. The source has large fractional circular polarization (CP), mc ≡ |V|/I, detected at high significance across the entire band (from 15 to 90σ per 128 MHz subband). This allows us to construct the most robust CP spectrum of an active galactic nucleus (AGN) jet to date. We find mc ∝ ν+0.60 ± 0.03 from 1.5 to 6.5 GHz, with a peak of mc ∼ 1 per...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stt1298
Access Rights: Open Access


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