Origin and evolution of NiI and FeI in the coma of the interstellar comet 3I/ATLAS throughout its trajectory

arXiv:2605.07652 · astro-ph.EP, astro-ph.GA · Submitted 2026-05-08 · Read on arXiv

Damien Hutsemékers, Jean Manfroid, Cyrielle Opitom, Emmanuël Jehin, Aravind Krishnakumar, Fernando Massa Fernandes, Michele Bannister, Dennis Bodewits, Rosemary Dorsey, Fiorangela La Forgia, Brian Murphy

astro-ph.EP, astro-ph.GA

Submitted: 2026-05-08

Comments: Submitted to A&A

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

Terminology

• Abundance — 32× in this paper · explained in 1 episode
• Very Large Telescope — 2× in this paper
• Aperture — 1× in this paper · explained in 1 episode
• Calibration — 1× in this paper · explained in 7 episodes
• European Southern Observatory — 1× in this paper
• Metallicity — 1× in this paper · explained in 3 episodes

Sources

• Isotopic Evidence for a Cold and Distant Origin of the Interstellar Object 3I/ATLAS
• Post-Perihelion Integral Field Spectroscopy of the Interstellar Comet 3I/ATLAS
• High nitrogen and carbon isotopic ratios in the interstellar comet 3I/ATLAS
• An Enriched Methane D/H Ratio in the Interstellar Object 3I/ATLAS
• Coma Physics of an Interstellar Object: JWST Spatial-Spectral Mapping of 3I/ATLAS
• Water D/H in 3I/ATLAS as a Probe of Formation Conditions in Another Planetary System
• Post-perihelion Coma Composition of the Interstellar Comet 3I/ATLAS from Optical Spectroscopy

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