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JWST detection of a carbon dioxide dominated gas coma surrounding interstellar object 3I/ATLAS
Martin A. Cordiner, Nathaniel X. Roth, Michael S. P. Kelley et al., 2025. arXiv.
JWST NIRSpec spectra of 3I at 3.32 au inbound: a coma dominated by carbon dioxide, with water, CO, OCS, water ice and dust, and a CO2 to water ratio of 7.6, among the highest ever seen in a comet.
What it's used for here
3I's composition from the first space-telescope spectra.
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Cite it
Cordiner, M. A., Roth, N. X., Kelley, M. S. P., Bodewits, D., Charnley, S. B., Drozdovskaya, M. N., Farnocchia, D., & Micheli, M. (2025). JWST detection of a carbon dioxide dominated gas coma surrounding interstellar object 3I/ATLAS. arXiv. https://doi.org/10.3847/2041-8213/ae0647
@article{cordiner2025jwst,
author = {Cordiner, Martin A. and Roth, Nathaniel X. and Kelley, Michael S. P. and Bodewits, Dennis and Charnley, Steven B. and Drozdovskaya, Maria N. and Farnocchia, Davide and Micheli, Marco},
title = {JWST detection of a carbon dioxide dominated gas coma surrounding interstellar object 3I/ATLAS},
journal = {arXiv},
year = {2025},
doi = {10.3847/2041-8213/ae0647},
url = {https://arxiv.org/abs/2508.18209}
}TY - GEN TI - JWST detection of a carbon dioxide dominated gas coma surrounding interstellar object 3I/ATLAS AU - Cordiner, Martin A. AU - Roth, Nathaniel X. AU - Kelley, Michael S. P. AU - Bodewits, Dennis AU - Charnley, Steven B. AU - Drozdovskaya, Maria N. AU - Farnocchia, Davide AU - Micheli, Marco PY - 2025 JO - arXiv DO - 10.3847/2041-8213/ae0647 UR - https://arxiv.org/abs/2508.18209 ER -
Cordiner, Martin A. et al.. “JWST detection of a carbon dioxide dominated gas coma surrounding interstellar object 3I/ATLAS.” arXiv (2025). https://doi.org/10.3847/2041-8213/ae0647.