JWST reveals anomalously enhanced methane outgassing from below Chiron's water ice and carbon dioxide bearing surface

arXiv:2605.23038 · astro-ph.EP · Submitted 2026-05-21 · Read on arXiv

Ian Wong, Silvia Protopapa, Aurélie Guilbert-Lepoutre, Geronimo L. Villanueva, Bryan Holler, Rosario Brunetto, Joshua P. Emery, Noemí Pinilla-Alonso, Ana Carolina de Souza Feliciano, Estela Fernández-Valenzuela

astro-ph.EP

Submitted: 2026-05-21

Comments: 30 pages, 7 figures, submitted to journal

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

Terminology

• Abundance — 8× in this paper · explained in 1 episode
• Calibration — 5× in this paper · explained in 7 episodes
• Planetary Spectrum Generator — 4× in this paper
• Aperture — 3× in this paper · explained in 1 episode
• Spectral Signature — 3× in this paper · explained in 2 episodes
• Cometary Emission Model — 1× in this paper
• Degeneracy — 1× in this paper · explained in 3 episodes
• Fidelity — 1× in this paper · explained in 2 episodes
• Markov Chain Monte Carlo — 1× in this paper
• Trace — 1× in this paper · explained in 2 episodes
• Two-Stage Optimization — 1× in this paper · explained in 2 episodes

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