# Magnetars formed by mergers of neutron stars or white dwarfs, or by accretion-induced collapse of a white…

> Still possible: Magnetars formed by mergers of neutron stars or white dwarfs, or by accretion-induced collapse of a white dwarf.

Source: https://mysteriesdept.com/mysteries/fast-radio-bursts/answers/ANS0CVCMMXJ4KG0/magnetars-formed-by-mergers-of-neutron-stars-or-white-dwarfs  
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)[How do burst sources come to be in old star clusters and dead galaxies?](https://mysteriesdept.com/mysteries/fast-radio-bursts/questions/QST0CVCMC4A44GR/how-do-burst-sources-come-to-be-in-old-star-clusters-and)Answer

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

# Magnetars formed by mergers of neutron stars or white dwarfs, or by accretion-induced collapse of a white…

Magnetars formed by mergers of neutron stars or white dwarfs, or by accretion-induced collapse of a white dwarf.

**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

- Large offsets from host centres, as for short gamma-ray bursts.

## What would rule it out

- Small offsets and young local populations for every old-host source.

## Evidence 1 for · none against

[FRB 20240209A has a large offset and a host like those of short gamma-ray bursts.](https://mysteriesdept.com/mysteries/fast-radio-bursts/evidence/EVD0CVCMN5C4QQG/frb-20240209a-has-a-large-offset-and-a-host-like-those-of)

Suggestive

FOR

## The questions it answers

[How do burst sources come to be in old star clusters and dead galaxies?](https://mysteriesdept.com/mysteries/fast-radio-bursts/questions/QST0CVCMC4A44GR/how-do-burst-sources-come-to-be-in-old-star-clusters-and)

Part of [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)

Open3 answers, none ahead

## Cite it

```
Mysteries Department. (2026). Magnetars formed by mergers of neutron stars or white dwarfs, or by accretion-induced collapse of a white… [Answer ANS0CVCMMXJ4KG0]. https://mysteriesdept.com/r/ANS0CVCMMXJ4KG0
```

Key

**ANS** 0CVCMMXJ4KG0

Kind

Answer · hypothesis

Origin

Published

Version

1

Added by

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

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