Image Details
Caption: Figure 4.
(a) Velocity map of the [N II]λ6583 line, showing the kinematic structure of Ve 7–27 and Vela Jr CCO nebula. (b) Spatial distribution of [N II]/Hα ratio and (c) [N II]/[S II], both highlighting the strong nitrogen enrichment of both Ve 7–27 and the CCO nebula. (d) Spatial map of the canonical electron-density-sensitive [S II]λ6716/λ6731 ratio across the field. This ratio decreases with increasing electron density.
© 2026. The Author(s). Published by the American Astronomical Society.