S-band total intensity images of NGC 4565. (a) Contours from the robust zero weighting image are overlaid on a three-color SDSS optical image constructed from the i, r, and g filters. The contour levels start at 3σ = 10.5 μJy beam⁻¹ and increase by factors of 2. The beam size of this panel is ﹩4\mathop{.}\limits{^{\prime\prime} }99\times 4\mathop{.}\limits{^{\prime\prime} }62﹩. The white box indicates the region shown in panel (c). (b) Contours from the 10″ UV-tapered image, overlaid on the same SDSS optical image. The contours begin at 3σ = 11.2 μJy beam⁻¹ and increase by factors of 2. The beam size of this panel is ﹩10\mathop{.}\limits{^{\prime\prime} }32\times 10\mathop{.}\limits{^{\prime\prime} }26﹩. (c) A detailed grayscale view of the central ring-shaped structure from the robust zero-weighting image. In each panel, the synthesized beam is shown as a black ellipse in the bottom-right corner.