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A Moderate Albedo from Reflecting Aerosols on the Dayside of WASP-80 b Revealed by JWST/NIRISS Eclipse Spectroscopy

  • Authors: Kim Morel, Louis-Philippe Coulombe, Jason F. Rowe, David Lafrenière, Loïc Albert, Étienne Artigau, Nicolas B. Cowan, Lisa Dang, Michael Radica, Jake Taylor, Caroline Piaulet-Ghorayeb, Pierre-Alexis Roy, Björn Benneke, Antoine Darveau-Bernier, Stefan Pelletier, René Doyon, Doug Johnstone, Adam B. Langeveld, Romain Allart, Laura Flagg, Jake D. Turner

Kim Morel et al 2025 The Astronomical Journal 169 .

  • Provider: AAS Journals

Caption: Figure B3.

Results from the principal component analysis of the calibrated data products (without considering the integrations before the tilt event). (a) Eigenvalue of the first principal component, which clearly contains the eclipse. (b) First principal component, i.e., the one with the highest variance in the time series. (c) Eigenvalue of the second principal component. (d) Second principal component. This component represents changes in the spatial direction of the traces, resulting in the trade of flux between the upper and lower parts of the traces. (e) Eigenvalue of the third principal component. This beating pattern is caused by temperature variations in the instrument electronics compartment. We use this component to detrend our light curves. (f) Third principal component. This component results in changes in the FWHM of the traces, as shown by the trade of flux between the wings and center of the traces.

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