Image Details
Caption: Figure 7.
Selected ETI candidates (33, black dots) and identified birdies (20, red dots) in the frequency (f)-time (t) plane, with other filtered hits shown in gray. The methodology’s effectiveness is demonstrated by the recovery of all 20 “birdies” and a final candidate count of 33 (e.g., 83 by Z.-S. Zhang et al. 2020; 31 by Y.-C. Wang et al. 2023).
© 2026. The Author(s). Published by the American Astronomical Society.