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FARADAY TOMOGRAPHY OF THE NORTH POLAR SPUR: CONSTRAINTS ON THE DISTANCE TO THE SPUR AND ON THE MAGNETIC FIELD OF THE GALAXY

Sun, X. H.; Landecker, T. L.; Gaensler, B M; Carretti, E.; Reich, W; Leahy, J. P.; McClure-Griffiths, Naomi; Crocker, Roland; Wolleben, M.; Haverkorn, Marijke; Douglas, K.A.; Gray, A.D.

Description

We present radio continuum and polarization images of the North Polar Spur (NPS) from the Global Magneto-ionic Medium Survey conducted with the Dominion Radio Astrophysical Observatory 26 m Telescope. We fit polarization angle versus wavelength squared over 2048 frequency channels from 1280 to 1750 MHz to obtain a Faraday rotation measure (RM) map of the NPS. Combining this RM map with a published Faraday depth (FD) map of the entire Galaxy in this direction, we derive the FD introduced by the...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
URI: http://hdl.handle.net/1885/152203
Source: The Astrophysical Journal
DOI: 10.1088/0004-637X/811/1/40
Access Rights: Open Access

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