# Tan 2026: Perihelion Asymmetry in the Water Production Rate of the Interstellar Object 3I/ATLAS

> Hanjie Tan, Xiaoran Yan, Jian-Yang Li, 2026. 3 records on Mysteries Department cite it. Tan, H., Yan, X., Li, J. 2026. Perihelion Asymmetry in the Water…

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# Perihelion Asymmetry in the Water Production Rate of the Interstellar Object 3I/ATLAS

Hanjie Tan, Xiaoran Yan, Jian-Yang Li, 2026. _ApJL 998, L22_.

SOHO/SWAN with 3D Monte Carlo: peak post-perihelion Q(H2O)~4e28 /s; inbound r^-5.9, outbound r^-3.3; icy-grain distributed source; no outbursts.

**3I/ATLAS** Articledoi: **[10.3847/2041-8213/ae3c97](https://doi.org/10.3847/2041-8213/ae3c97)** 0

## Cited by on this site 3 records

[A 3D model of the SWAN data peaks near 4 × 10^28](https://mysteriesdept.com/mysteries/3i-atlas/evidence/EVD0DFQ55AT4QTE/a-3d-model-of-the-swan-data-peaks-near-4-10-28)

Evidence

EVD

[Much of the water came from icy grains, not the nucleus](https://mysteriesdept.com/mysteries/3i-atlas/evidence/EVD0DFQ4MVJ784S/much-of-the-water-came-from-icy-grains-not-the-nucleus)

Evidence

EVD

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

The mystery article

MYS

## Cite it

```
Tan, H., Yan, X., & Li, J. Y. (2026). Perihelion Asymmetry in the Water Production Rate of the Interstellar Object 3I/ATLAS. ApJL 998, L22. https://doi.org/10.3847/2041-8213/ae3c97
```

[Read it free at arxiv.org](https://arxiv.org/abs/2601.15443)

Key

**SRC** 0DFPWGSFJKVY

Kind

Journal article

Rights

arXiv-nonexclusive

Kept

2 Nov 2026, for editors

Added by

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

The record

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