STARITHM
CHIME detects high-confidence FRB with dispersion measure of 951.5 pc/cm³
AI Summary
CHIME/FRB Real-time Search Pipeline identified Fast Radio Burst 1181974935 on 2026-10-15 at 12:06:36.952 UTC with a high importance score of 0.9999. The burst exhibits a dispersion measure of 951.49±0.40 pc/cm³, significantly exceeding the maximum Galactic contribution (176.82 pc/cm³), indicating an extragalactic origin. Localized to RA=86.15°, Dec=22.78° with ~0.51° uncertainty, the burst was detected across 400-800 MHz with SNR=15.09. No follow-up observations or circulars have been reported at this time.
Measurements
| Event ID | 1181974935 |
|---|---|
| Source | CHIME |
| Alert type | FRB |
| Significance | medium |
| Trigger time (UTC) | Thu, 15 Oct 2026 12:06:36 GMT |
| Right ascension (J2000) | 86.1489233° |
| Declination (J2000) | 22.7847736° |
| Dispersion measure | 951.4926758 pc/cm³ |
| SNR | 15.0910463 |
| GCN notices | 1 |
| GCN circulars | 0 |
Notices (1)
CHIME — FRB · Thu, 15 Oct 2026 12:06:36 GMT
AI summary generated Thu, 15 Oct 2026 16:48:48 GMT.