Spectral extraction regions used for Fig. 4. The contours correspond to the γ-ray image (>1000 MeV). The red lines indicate the regions of the radio and Planck aperture photometry. The contours inside the corresponding regions show the template used for the extraction of the corresponding LAT spectrum. N1, N2, and N3 are the outer, middle, and inner regions of the north lobe, and S1, S2, and S3 are the outer, middle, and inner regions of the south lobe. The circle is the core region.