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A JWST Transiting Survey of FGK Stellar Limb Darkening: Empirical Evidence for Quadratic Laws and Atmospheric Model Comparisons

  • Authors: David K. Sing, Joshua D. Lothringer, Jeff A. Valenti, Natalie H. Allen, Katherine A. Bennett, Carlos Gascón, Mei Ting Mak, Patrick McCreery, Sagnick Mukherjee, Lakeisha M. Ramos Rosado, Stephen P. Schmidt, Kevin B. Stevenson, Daniel P. Thorngren, Le-Chris Wang

David K. Sing et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure 9.

PHOENIX model limb-darkening comparison as a function of ﹩{\mu }_{{\rm{\min }}}﹩. Top: offset in the linear coefficient, Δℓ, for each target. Middle: offset in the curvature coefficient, Δδ. Bottom: reduced chi-square (﹩{\chi }_{\nu }^{2}﹩) for each target (colored lines) and the aggregate statistics summing across all systems (black), shown both with and without offsets applied. Points are colored by stellar effective temperature.

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