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Through thick or thin: Multiple components of the magneto-ionic medium towards the nearby H II region Sharpless 2-27 revealed by Faraday tomography

Thomson, Alec; Landecker, T. L.; Dickey, John; McClure-Griffiths, Naomi; Wolleben, M.; Carretti, Ettore; Fletcher, A.; Federrath, Christoph; Hill, A. S.; Mao, S. A.; Gaensler, B. M.; Haverkorn, M.; Clark, S. E.


Sharpless 2-27 (Sh2-27) is a nearby H II region excited by ζOph. We present observations of polarized radio emission from 300 to 480 MHz towards Sh2-27, made with the Parkes 64 m Radio Telescope as part of the Global Magneto-Ionic Medium Survey. These observations have an angular resolution of 1.35 [degrees], and the data are uniquely sensitive to magneto-ionic structure on large angular scales. We demonstrate that background polarized emission towards Sh2-27 is totally depolarized in our...[Show more]

CollectionsANU Research Publications
Date published: 2019-05-24
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stz1438
Access Rights: Open Access


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