A framework for evaluating biosignature potential against the abiotic baseline on ocean worlds

arXiv:2605.15337 · astro-ph.EP · Submitted 2026-05-14 · Read on arXiv

Peter M. Higgins, Weibin Chen, Oliver Warr, Lucas M. Fifer, Wanying Kang, Charles S. Cockell, Barbara Sherwood Lollar

astro-ph.EP

Submitted: 2026-05-14

Comments: Preprint. Journal reference and DOI will be added when available. 60 pages, 11 figures

Code: https://github.com/pmhiggins/NutMEG-Implementations

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

Terminology

• Core — 11× in this paper · explained in 2 episodes
• Abundance — 7× in this paper · explained in 1 episode
• Accuracy — 1× in this paper · explained in 1 episode
• Entrainment — 1× in this paper · explained in 2 episodes
• Robustness — 1× in this paper · explained in 5 episodes
• alpha — 1× in this paper · explained in 1 episode

Related papers

• PDS 70 c and SR 12 c: Observational Constraints on Giant-Planet and Satellite Formation
• Two-stage disruption of resonant chains
• Detectability of resolved hydrogen lines from the accretion shock at gas giants and their CPDs
• Binary-lens Microlensing Degeneracy: Impact on Planetary Sensitivity and Mass-ratio Function
• Atmospheric escape fractionates secondary but not primary atmospheres
• The Occurrence Rate of Nearby Planetary Companions to Hot Jupiters