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ExoEcho: Exoplanet Ephemerides Change Observations. III. A JWST Survey for Transit Timing Variations of 37 Exoplanets

  • Authors: Yunke Wu, Zixin Zhang, Xinyue Ma, Wenqin Wang, Siqi Guo, Cong Yu, Shangfei Liu, Dichang Chen, Bo Ma

Yunke Wu et al 2026 The Astrophysical Journal Supplement Series 287 .

  • Provider: AAS Journals

Caption: Figure 9.

O − C diagrams for HAT-P-18 b. Top: HAT-P-18 b using all available transit times. Bottom: HAT-P-18 b after excluding ground-based transit times. In each panel, the gray dashed line denotes the best-fit linear ephemeris, the blue curve shows the fitted quadratic model, and the annotated value gives the measured ﹩\dot{P}﹩. Data points are color coded by source.

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