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The study of supernova remnants (SNRs) is fundamental to understanding thechemical enrichment and magnetism in galaxies, including our own Milky Way. Inan effort to understand the connection between the morphology of SNRs and theGalactic magnetic field (GMF), we have examined the radio images of all knownSNRs in our Galaxy and compiled a large sample that have an "axisymmetric"morphology, which we define to mean SNRs with a "bilateral" or "barrel"-shapedmorphology, in addition to one-sided shells. We selected the cleanest examplesand model each of these at their appropriate Galactic position using two GMFmodels, those of Jansson & Farrar (2012a), which includes a vertical halocomponent, and Sun et al. (2008) that is oriented entirely parallel to theplane. Since the magnitude and relative orientation of the magnetic fieldchanges with distance from the sun, we analyse a range of distances, from 0.5to 10 kpc in each case. Using a physically motivated model of a SNR expandinginto the ambient GMF, we find the models using Jansson & Farrar (2012a) areable to reproduce observed morphologies of many SNRs in our sample. Theseresults strongly support the presence of an off-plane, vertical component tothe GMF, and the importance of the Galactic field on SNR morphology. Ourapproach also provides a potential new method for determining distances toSNRs, or conversely, distances to features in the large-scale GMF if SNRdistances are known.

The Connection between Supernova Remnants and the Galactic Magnetic Field: A Global Radio Study of the Axisymmetric Sample