Image Details
Caption: Figure 3.
C/O ratio as a function of metallicity [M/H] as given in Table 4. Planets observed with direct spectroscopy are shown as blue circles, planets observed with eclipse spectroscopy as magenta squares, and planets observed with transit spectroscopy as gold diamonds. Ultrahot Jupiters are labeled as stars.
© 2025. The Author(s). Published by the American Astronomical Society.