Extended Data Fig. 3: Comparison of the main forbidden lines found in WOH G64 spectra.
From: The dramatic transition of the extreme red supergiant WOH G64 to a yellow hypergiant
The UVES spectrum is shown in brown, X-Shooter in blue, and MagE in magenta. The vertical gray dashed-dotted line indicates the center of the line assuming a RV of 270 km s−1.
