High water D/H ratio of the interstellar object 3I/ATLAS is consistent with a low-metallicity origin

arXiv:2609.12370 · astro-ph.EP, astro-ph.GA · Submitted 2026-09-11 · Read on arXiv

astro-ph.EP, astro-ph.GA

Submitted: 2026-09-11

Updated: 2026-09-14

Comments: Accepted for publication in ApJL. The typo in the abstract has been corrected

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

Terminology

• Metallicity — 7× in this paper · explained in 3 episodes
• Core — 3× in this paper · explained in 2 episodes

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