WASP-12b Exhibits Persistent In-Transit H alpha Absorption

arXiv:2608.23678 · astro-ph.EP · Submitted 2026-08-24 · Read on arXiv

astro-ph.EP

Submitted: 2026-08-24

Updated: 2026-08-24

Comments: 12 pages, 5 figures, submitted to AJ

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

Terminology

• Adam — 2× in this paper · explained in 2 episodes
• Calibration — 2× in this paper · explained in 7 episodes
• Roche-Lobe Overflow — 2× in this paper
• Trace — 2× in this paper · explained in 2 episodes
• Transmission spectroscopy — 2× in this paper · explained in 2 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Core — 1× in this paper · explained in 2 episodes
• Laplacian of Gaussian — 1× in this paper
• alpha — 1× in this paper · explained in 1 episode

Sources

• SpectRes: A Fast Spectral Resampling Tool in Python
• A hydrodynamic study of the escape of metal species and excited hydrogen from the atmosphere of the hot Jupiter WASP-121b
• TESS Transit Timing of Hundreds of Hot Jupiters

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