Left: 3D rendering of SNRs in the cloudy interstellar medium for model TN-2048. The rendering is made to highlight three “layers” of temperature: T  =  5050 (surface of CNM), 5 × 10⁶ (shock front), and 3 × 10⁷ K (hot gas interior) in blue, orange, and red, respectively. Right: extraction of the surface of SNRs (T  =  5 × 10⁶ K, red) and the surface of the CNM (T  =  5050 K, light blue) within a sphere of r  =  20 pc. An interactive 3D model of the right panel is available at SktechFab (https://sketchfab.com/3d-models/snr512k0-t5e3k-t5e6k-4d3d1d52b1de490eb4f3af2dd0373eaf) and in the online journal. The reader uses the mouse to rotate and zoom in on the 3D model.

An interactive version of this figure is available in the online article.

An interactive version of this figure is available.

An interactive version of this figure is available in the online journal.