# Guo 2025: Search for Past Stellar Encounters and the Origin of 3I/ATLAS

> Yiyang Guo, Luyao Zhang, Fabo Feng, 2025. 2 records on Mysteries Department cite it. Guo, Y., Zhang, L., Feng, F. et al. 2025. Search for Past Stellar…

Source: https://mysteriesdept.com/sources/SRC0DFPWGSF2F8W/search-for-past-stellar-encounters-and-the-origin-of-3i  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Sources](https://mysteriesdept.com/sources)[3I/ATLAS](https://mysteriesdept.com/mysteries/3i-atlas)Guo 2025

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# Search for Past Stellar Encounters and the Origin of 3I/ATLAS

Yiyang Guo, Luyao Zhang, Fabo Feng, 2025. _AJ 170, 362_.

25 stellar encounters <1 pc, none a plausible host (speeds >20 km/s); closest perturber a wide M-dwarf binary at 0.242 pc 1.64 Myr ago; thin-disk origin strongly favoured.

**3I/ATLAS** Articledoi: **[10.3847/1538-3881/ae1833](https://doi.org/10.3847/1538-3881/ae1833)** 0

## Cited by on this site 2 records

[Gaia traceback favours the thin disc and finds no home star](https://mysteriesdept.com/mysteries/3i-atlas/evidence/EVD0DFQ5327B9KS/gaia-traceback-favours-the-thin-disc-and-finds-no-home-star)

Evidence

EVD

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

The mystery article

MYS

## Cite it

```
Guo, Y., Zhang, L., & Feng, F. (2025). Search for Past Stellar Encounters and the Origin of 3I/ATLAS. AJ 170, 362. https://doi.org/10.3847/1538-3881/ae1833
```

[Read it free at arxiv.org](https://arxiv.org/abs/2509.03361)

Key

**SRC** 0DFPWGSF2F8W

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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