Image Details
Caption: Figure 7.
WHAN diagram and color-coded map for all pixels in the nebula surrounding NGC 1275 with an SNR over 3 and flux over 1e−17 erg s−1 cm−2 Å−1. The pixels are divided into three categories: star forming (orange), HEW (teal), and LEW (purple). Measurements below the dotted line are considered uncertain (R. Cid Fernandes et al. 2011).
© 2025. The Author(s). Published by the American Astronomical Society.