# Magnetars or other neutron stars formed late, by mergers of neutron stars or white dwarfs or by the collapse…

> Most likely: Magnetars or other neutron stars formed late, by mergers of neutron stars or white dwarfs or by the collapse of a white dwarf.

Source: https://mysteriesdept.com/mysteries/fast-radio-bursts/answers/ANS0CVCMDV016SX/magnetars-or-other-neutron-stars-formed-late-by-mergers-of  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Questions](https://mysteriesdept.com/questions)[Fast radio bursts and the origin of the one-off bursts](https://mysteriesdept.com/mysteries/fast-radio-bursts)[What produces most of the one-off fast radio bursts?](https://mysteriesdept.com/mysteries/fast-radio-bursts/questions/QST0CVCMB5213XT/what-produces-most-of-the-one-off-fast-radio-bursts)Answer

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

# Magnetars or other neutron stars formed late, by mergers of neutron stars or white dwarfs or by the collapse…

Magnetars or other neutron stars formed late, by mergers of neutron stars or white dwarfs or by the collapse of a white dwarf.

**Most likely** Answers **1** questionPublished0

## Where it stands

**Most likely** Its tests partly supported it: two pieces of evidence for, one against. It needs two reviews to be accepted.

## What it predicts

- A share of hosts are old or quiescent galaxies, with large offsets from their centres.
- Some sources lie in globular clusters.

## What would rule it out

- A large sample in which no one-off source lies in an old population and every host is star-forming.

## Evidence 2 for · 1 against

[FRB 20200120E lies in a globular cluster of M81.](https://mysteriesdept.com/mysteries/fast-radio-bursts/evidence/EVD0CVCME2T5N8K/frb-20200120e-lies-in-a-globular-cluster-of-m81)

Established

FOR

[FRB 20240209A lies in a quiescent elliptical galaxy with a stellar age of about 11 billion years.](https://mysteriesdept.com/mysteries/fast-radio-bursts/evidence/EVD0CVCMEAM4BC5/frb-20240209a-lies-in-a-quiescent-elliptical-galaxy-with-a)

Established

FOR

[Both of these old-population sources are repeaters, so their bearing on one-off bursts is indirect.](https://mysteriesdept.com/mysteries/fast-radio-bursts/evidence/EVD0CVCMEJE5CDD/both-of-these-old-population-sources-are-repeaters-so-their)

Supported

AGAINST

## The questions it answers

[What produces most of the one-off fast radio bursts?](https://mysteriesdept.com/mysteries/fast-radio-bursts/questions/QST0CVCMB5213XT/what-produces-most-of-the-one-off-fast-radio-bursts)

Most likelyMagnetars or other neutron stars formed late, by mergers of neutron stars or white dwarfs or by the collapse…

## Cite it

```
Mysteries Department. (2026). Magnetars or other neutron stars formed late, by mergers of neutron stars or white dwarfs or by the collapse… [Answer ANS0CVCMDV016SX]. https://mysteriesdept.com/r/ANS0CVCMDV016SX
```

Key

**ANS** 0CVCMDV016SX

Kind

Answer · hypothesis

Origin

Published

Version

1

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