20 cm radio continuum map (Helfand et al. 2006) with superimposed best-fit positions as vertical crosses (their sizes indicate the statistical errors) and intrinsic extensions as rings. Magenta and dashed blue represent the Gaussian model of the Fermi LAT source and the extended component of the two-component model of the H.E.S.S. source. The inner and outer radius represents ± 1σ errors on the fitted extension. The candidate pulsar (triangle, brown) and OH maser (cross, yellow) positions are also reported.
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