# Zhang 2026: Extreme-value Distribution Analysis of the Second CHIME/FRB Catalog: Assessing the Rarity of the One-off FRB 20250316A

> Wen-Long Zhang, Jun-Jie Wei, 2026. 6 records on Mysteries Department cite it. A test of whether the brightest one-offs are a distinct class or the tail…

Source: https://mysteriesdept.com/sources/SRC0CVCM5S65R1R/extreme-value-distribution-analysis-of-the-second-chime-frb  
Publisher: Mysteries Department  
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[Sources](https://mysteriesdept.com/sources)[Fast radio bursts and the origin of the one-off bursts](https://mysteriesdept.com/mysteries/fast-radio-bursts)Zhang 2026

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# Extreme-value Distribution Analysis of the Second CHIME/FRB Catalog: Assessing the Rarity of the One-off FRB 20250316A

Wen-Long Zhang, Jun-Jie Wei, 2026. _The Astrophysical Journal 1002(2), 124_.

Generalised extreme-value fits to block maxima of peak flux and fluence in Catalog 2 make FRB 20250316A a strong outlier; with three other outliers removed, the fluence distribution has a finite upper bound that the burst far exceeds.

**Fast radio bursts and the origin of the one-off bursts** Articledoi: **[10.3847/1538-4357/ae5e74](https://doi.org/10.3847/1538-4357/ae5e74)** Checked against the original0

## What it's used for here

A test of whether the brightest one-offs are a distinct class or the tail of one distribution.

## Cited by on this site 6 records

[The brightest bursts are the heavy tail of a single luminosity distribution.](https://mysteriesdept.com/mysteries/fast-radio-bursts/answers/ANS0CVCMKPG3V4Q/the-brightest-bursts-are-the-heavy-tail-of-a-single)

Answer

ANS

[The brightest one-offs are a distinct physical class.](https://mysteriesdept.com/mysteries/fast-radio-bursts/answers/ANS0CVCMM641XHQ/the-brightest-one-offs-are-a-distinct-physical-class)

Answer

ANS

[The full peak-flux sample fits an unbounded Fréchet-type distribution.](https://mysteriesdept.com/mysteries/fast-radio-bursts/evidence/EVD0CVCMKYA2YKV/the-full-peak-flux-sample-fits-an-unbounded-frechet-type)

Evidence

EVD

[With three other outliers removed, the fluence distribution is bounded and FRB 20250316A far exceeds the…](https://mysteriesdept.com/mysteries/fast-radio-bursts/evidence/EVD0CVCMMDY65ZN/with-three-other-outliers-removed-the-fluence-distribution)

Evidence

EVD

[Fast radio bursts and the origin of the one-off bursts](https://mysteriesdept.com/mysteries/fast-radio-bursts)

The mystery article

MYS

[Are the brightest one-off bursts the tail of one distribution or a separate class?](https://mysteriesdept.com/mysteries/fast-radio-bursts/questions/QST0CVCMBWG1P3D/are-the-brightest-one-off-bursts-the-tail-of-one)

Question

QST

## Cite it

```
Zhang, W. L., & Wei, J. J. (2026). Extreme-value Distribution Analysis of the Second CHIME/FRB Catalog: Assessing the Rarity of the One-off FRB 20250316A. The Astrophysical Journal 1002(2), 124. https://doi.org/10.3847/1538-4357/ae5e74
```

[Read it free at doi.org](https://doi.org/10.3847/1538-4357/ae5e74)

Key

**SRC** 0CVCM5S65R1R

Kind

Journal article

Rights

CC-BY-4.0

Kept

27 Oct 2026

Checked

Against the published article

Added by

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

The record

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