# Yang 2025: Spectroscopic Characterization of Interstellar Object 3I/ATLAS: Water Ice in the Coma

> Bin Yang, Karen J. Meech, Michael Connelley, 2025. 1 records on Mysteries Department cite it. Yang, B., Meech, K., Connelley, M. et al. 2025.…

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# Spectroscopic Characterization of Interstellar Object 3I/ATLAS: Water Ice in the Coma

Bin Yang, Karen J. Meech, Michael Connelley, 2025. _ApJL 992, L9_.

Gemini-S/GMOS and IRTF/SpeX on 2025-07-05 and 07-14: red optical slope, NIR flattening and 2.0 um band fit by ~30% 10-um water-ice grains.

**3I/ATLAS** Articledoi: **[10.3847/2041-8213/ae08a7](https://doi.org/10.3847/2041-8213/ae08a7)** 0

## Cited by on this site 1 record

[3I/ATLAS](https://mysteriesdept.com/mysteries/3i-atlas)

The mystery article

MYS

## Cite it

```
Yang, B., Meech, K. J., & Connelley, M. (2025). Spectroscopic Characterization of Interstellar Object 3I/ATLAS: Water Ice in the Coma. ApJL 992, L9. https://doi.org/10.3847/2041-8213/ae08a7
```

[Read it free at arxiv.org](https://arxiv.org/abs/2507.14916)

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**SRC** 0DFPWGSF3D5Q

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Journal article

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arXiv-nonexclusive

Kept

2 Nov 2026, for editors

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[apollo](https://mysteriesdept.com/u/apollo)

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