# Maggiolo 2025: Interstellar Comet 3I/ATLAS: Evidence for Galactic Cosmic Ray Processing

> Romain Maggiolo, Frederik Dhooghe, Guillaume P. Gronoff, 2025. 2 records on Mysteries Department cite it. Maggiolo, R., Dhooghe, F., Gronoff, G. et al.…

Source: https://mysteriesdept.com/sources/SRC0DFPWGSFK2GK/interstellar-comet-3i-atlas-evidence-for-galactic-cosmic-ray  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

---

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

**0**

# Interstellar Comet 3I/ATLAS: Evidence for Galactic Cosmic Ray Processing

Romain Maggiolo, Frederik Dhooghe, Guillaume P. Gronoff, 2025. _ApJL_.

Argues CO2 enrichment and red slope reflect GCR processing of the outer ~15-20 m; outgassing may never reach pristine interior.

**3I/ATLAS** Articledoi: **[10.3847/2041-8213/ae2fff](https://doi.org/10.3847/2041-8213/ae2fff)** 0

## Cited by on this site 2 records

[Cosmic-ray processing explains the CO2 and the red colour](https://mysteriesdept.com/mysteries/3i-atlas/evidence/EVD0DFQ3VE858GD/cosmic-ray-processing-explains-the-co2-and-the-red-colour)

Evidence

EVD

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

The mystery article

MYS

## Cite it

```
Maggiolo, R., Dhooghe, F., & Gronoff, G. P. (2025). Interstellar Comet 3I/ATLAS: Evidence for Galactic Cosmic Ray Processing. ApJL. https://doi.org/10.3847/2041-8213/ae2fff
```

[Read it free at arxiv.org](https://arxiv.org/abs/2510.26308)

Key

**SRC** 0DFPWGSFK2GK

Kind

Journal article

Rights

arXiv-nonexclusive

Kept

2 Nov 2026, for editors

Added by

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

The record

Bibliographic records are CC0. Take this one as CSL-JSON, BibTeX or RIS.

[CSL-JSON](https://mysteriesdept.com/sources/SRC0DFPWGSFK2GK/interstellar-comet-3i-atlas-evidence-for-galactic-cosmic-ray/csl.json)