Image Details
Caption: Figure 2.
Composites of common FoVs in CO (blue), Hα (green), and 21 μm (red) for the three galaxies: NGC 628, NGC 5194 = M 51a, and NGC 5236 = M83, with the selected star-forming regions shown as red circles. The NE direction is indicated in each panel.
© 2026. The Author(s). Published by the American Astronomical Society.