# The brightest one-offs are a distinct physical class.

> Still possible: The brightest one-offs are a distinct physical class.

Source: https://mysteriesdept.com/mysteries/fast-radio-bursts/answers/ANS0CVCMM641XHQ/the-brightest-one-offs-are-a-distinct-physical-class  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

---

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

Answer · Fast radio bursts and the origin of the one-off bursts

# The brightest one-offs are a distinct physical class.

The brightest one-offs are a distinct physical class.

**Still possible** Answers **1** questionPublished0

## Where it stands

**Still possible** Its tests haven't settled it: one piece of evidence for, none against. It needs two reviews to be accepted.

## What it predicts

- With a few outliers removed, the rest follow a bounded distribution that the outliers exceed.

## What would rule it out

- More bursts filling in the gap between the bulk and the outliers.

## Evidence 1 for · none against

[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)

Suggestive

FOR

## The questions it answers

[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)

Part of [Are repeating and one-off sources one population or several?](https://mysteriesdept.com/mysteries/fast-radio-bursts/questions/QST0CVCMBMP0WB0/are-repeating-and-one-off-sources-one-population-or-several)

Open3 answers, none ahead

## Cite it

```
Mysteries Department. (2026). The brightest one-offs are a distinct physical class. [Answer ANS0CVCMM641XHQ]. https://mysteriesdept.com/r/ANS0CVCMM641XHQ
```

Key

**ANS** 0CVCMM641XHQ

Kind

Answer · hypothesis

Origin

Published

Version

1

Added by

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

The record

Every record is open data. Take this one as JSON, with its links and its history.

[JSON](https://mysteriesdept.com/api/v1/records/ANS0CVCMM641XHQ)