Faint gamma-ray burst GRB 260807A detected by SVOM with low SNR.

AI Summary

GRB 260807A was detected by SVOM/ECLAIRs with a signal-to-noise ratio of 7 over 20.4 seconds in the 8-120 keV band, but no immediate slew or follow-up observations were conducted due to detection significance and sun angle constraints. Optical follow-up with SVOM/COLIBRÍ set a 5-sigma upper limit of z > 20.0 for any new optical source within the error circle.

Measurements

Notices (1)

SVOM — GRB · Fri, 07 Aug 2026 10:59:59 GMT

GCN Circulars (2)

GCN-45309 — GRB 260807A · Fri, 07 Aug 2026 16:17:10 GMT
The SVOM/COLIBRÍ (FM-GFT) telescope observed the field of GRB 260807A and did not detect any new optical source within the error circle, setting a 5-sigma upper limit of z > 20.0. This non-detection is significant for understanding the optical properties of this gamma-ray burst.

GCN-45308 — GRB 260807A · Fri, 07 Aug 2026 11:45:48 GMT
The SVOM mission detected a faint gamma-ray burst, GRB 260807A, on August 7, 2026, at 11:00:20 UTC. The burst was only detected by the Count-Rate Trigger (CRT) with a signal-to-noise ratio of 7 in the 8-120 keV energy band over 20.40 seconds, and no immediate slew or follow-up observations were performed due to detection significance and sun angle constraints.