Persistent Signal Catalog · Class II
FRB 20240209A
A repeating fast radio burst associated with the outskirts of a massive quiescent elliptical galaxy. Its large host offset makes it a current comparison case for old stellar environments, delayed formation channels, and source-context restraint.
A repeating fast radio burst associated with the outskirts of a massive quiescent elliptical galaxy. Its large host offset makes it a current comparison case for old stellar environments, delayed formation channels, and source-context restraint.
Public packet
- CHIME-KKO localization summary
- 22-burst discovery ledger abstract
- quiescent-host environment note
- large-offset comparison file
Review controls
- Coordinate source
- Shah et al. 2025 public localization center, rounded for Night Watch display
- Uncertainty
- Published localization constrained to arcsecond scale; public marker is rounded
- Release state
- External literature case retained for comparison
- Marker use
- localized repeating FRB source near a quiescent host-galaxy outskirts field
Processing notes
- multi-burst localization combination
- host-association probability review
- burst-repeat statistics retained from source literature
- old-stellar-environment comparison against localized repeaters
Ordinary-source checks
- host association is retained separately from source mechanism
- old stellar environment challenges young-source assumptions but does not identify cause
- public record excludes unsupported origin claims
Release limits
- public marker follows rounded published localization only
- raw burst products and observing proposals are not reproduced
- host-environment interpretation remains under active review