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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 14.

O − C diagram for HAT-P-18 b. Top: the O − C diagram with the gray dashed line denotes the best-fit linear ephemeris, the blue curve shows the fitted sine model, and the annotated value gives the measured amplitude ATTV. Data points are color coded by source. Bottom: the residuals from the best-fit sine model and the observed data.

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