The JWST weather report: Unravelling the atmospheric variability of isolated worlds using principal component analysis

arXiv:2607.26182 · astro-ph.EP, astro-ph.IM, astro-ph.SR · Submitted 2026-07-28 · Read on arXiv

Merle A. Schrader, Johanna M. Vos, Evert Nasedkin, Jennifer Kestell, Nicolas B. Cowan, Roman Akhmetshyn, Samuel Beiler, Beth A. Biller, Ben Burningham, Jacqueline Faherty, Eileen C. Gonzales, Allison M. McCarthy, Caroline V. Morley, Barry O'Donovan, Cian O'Toole, Genaro Suarez, Xianyu Tan, Channon Visscher, Niall Whiteford, Yifan Zhou

astro-ph.EP, astro-ph.IM, astro-ph.SR

Submitted: 2026-07-28

Comments: 23 pages, 15 figures, accepted to Astronomy & Astrophysics

DOI: 10.1051/0004-6361/202660109

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Abundance — 36× in this paper · explained in 1 episode
• Trace — 21× in this paper · explained in 2 episodes
• Consistency — 5× in this paper · explained in 3 episodes
• Metallicity — 4× in this paper · explained in 3 episodes
• Alignment — 3× in this paper · explained in 1 episode
• Calibration — 3× in this paper · explained in 7 episodes
• Clustering — 3× in this paper · explained in 2 episodes
• Principal Component Analysis (PCA) — 3× in this paper · explained in 4 episodes
• Aperture — 2× in this paper · explained in 1 episode
• Robustness — 2× in this paper · explained in 5 episodes
• Absorption Cross Section — 1× in this paper · explained in 1 episode
• Akaike Information Criterion — 1× in this paper
• Benchmark — 1× in this paper · explained in 2 episodes
• Bright Object Time Series — 1× in this paper
• Inverse Problem — 1× in this paper · explained in 2 episodes
• James Webb Space Telescope — 1× in this paper
• Parsimony — 1× in this paper · explained in 2 episodes
• Sampling Biases — 1× in this paper · explained in 2 episodes
• Spectral Signature — 1× in this paper · explained in 2 episodes
• Spitzer and Hubble Space Telescope — 1× in this paper

Sources

• SpectRes: A Fast Spectral Resampling Tool in Python

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