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CH3OH and HCN in Interstellar Comet 3I/ATLAS Mapped with the ALMA Atacama Compact Array

Nathan X. Roth, Martin A. Cordiner, Dominique Bockelée-Morvan, 2025. ApJL 999, L32.

ALMA ACA Aug-Oct 2025: CH3OH partly from coma sources (Lp>258 km); HCN from nucleus; CH3OH/HCN = 124 (+30/-34) and 79 (+11/-14), among the highest known.

MYS0DFPTE25MVWR · mystery · click to copyM3I/ATLASArticledoi: 10.3847/2041-8213/ae433b0

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Roth, N. X., Cordiner, M. A., & Bockelée-Morvan, D. (2025). CH3OH and HCN in Interstellar Comet 3I/ATLAS Mapped with the ALMA Atacama Compact Array. ApJL 999, L32. https://doi.org/10.3847/2041-8213/ae433b
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