Image Details
Caption: Figure 1.
Confirmed transiting planet radii and periods drawn from the NASA Exoplanet Archive on 2025 August 26 (R. L. Akeson et al. 2013; NASA Exoplanet Archive 2024). Closed colored circles represent He* detections of atmospheric escape as a function of spectral type. Open circles denote survey targets. The dashed lines indicate the Neptune desert boundary from A. Castro-González et al. (2024).
© 2026. The Author(s). Published by the American Astronomical Society.