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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 6.

JWST-fit quadratic limb-darkening coefficient spectra for WASP-121, WASP-94, and HAT-P-11, compared with stellar-atmosphere model predictions using ﹩{\mu }_{{\rm{\min }}}=0.2﹩. The empirically derived coefficients ℓ (limb intensity) and δ (curvature) are shown with 1σ uncertainties. Model predictions from PHOENIX, MPS-ATLAS (sets 1 and 2), and Stagger are shown both with (solid) and without (dashed) the recommended offsets applied.

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