Image Details
Caption: Figure 1.
Left: line synthesis of the Hg II line at 6149.46 Å of HD 124740 (observed spectrum in black, synthetic spectrum in red), Right: synthesis of the Pr III line at 5284.69 Å and the Nd III line at 5294.10 Å.
© 2026. The Author(s). Published by the American Astronomical Society.