CHIME detects subsequent FRB burst associated with known repeating source
AI Summary
CHIME/FRB pipeline identified a subsequent fast radio burst (FRB) on 2026-07-10 at 19:59:42.844 UTC with high association probability (0.98) to known source 1163334440, indicating a likely repeating FRB system. The burst exhibits a dispersion measure of 173.88 pc/cm³ with SNR of 17.03, localized to RA 291.39°, Dec 85.90° with ~6 arcsecond positional uncertainty. Observations span 400-800 MHz with dual polarization, confirming astrophysical origin from a high-latitude source near the celestial pole.
Measurements
| Event ID | 1170034184 |
|---|---|
| Source | CHIME |
| Alert type | FRB |
| Significance | medium |
| Trigger time (UTC) | Fri, 10 Jul 2026 19:59:42 GMT |
| Right ascension (J2000) | 291.385532° |
| Declination (J2000) | 85.8972335° |
| Dispersion measure | 173.8809357 pc/cm³ |
| SNR | 17.0285435 |
| GCN notices | 1 |
| GCN circulars | 0 |
Notices (1)
CHIME — FRB · Fri, 10 Jul 2026 19:59:42 GMT
AI summary generated Fri, 17 Jul 2026 15:08:29 GMT.