Image Details
Caption: Figure 3.
SOAR/Goodman optical spectrum of EP240309a at native sampling/resolution. Major emission features (Hα, Hβ, He II 4686) are marked. Broad low-contrast structures near ∼4160, ∼4400, and ∼4940 Å are indicated and discussed in the text.
© 2026. The Author(s). Published by the American Astronomical Society.