Fermi GBM detects GRB 260710A with a likely AGN origin
AI Summary
GRB 260710A was detected by Fermi GBM, showing a peak photon flux of 30 ph/s/cm^2 and a T90 duration of 1.9 seconds. Follow-up observations by AstroSat CZTI and Insight-HXMT/HE confirmed the event, providing additional spectral and temporal details.
Measurements
| Event ID | 805381128 |
|---|---|
| Source | Fermi GBM |
| Alert type | GRB |
| Significance | high |
| Trigger time (UTC) | Fri, 10 Jul 2026 12:58:43 GMT |
| Right ascension (J2000) | 5.61° |
| Declination (J2000) | -85.01° |
| Position error radius | 1.79° |
| GCN notices | 4 |
| GCN circulars | 5 |
Notices (1)
Fermi GBM — GRB · Fri, 10 Jul 2026 12:58:43 GMT
GCN Circulars (5)
GCN-45182 — GRB 260710A
· Sat, 18 Jul 2026 18:22:10 GMT
The SVOM/GRM instrument detected a gamma-ray burst, GRB 260710A, on July 10, 2026, at 12:58:43.450 UTC, which was also observed by Fermi/GBM. The burst consisted of a single pulse with a duration (T90) of 2.60 seconds and had a time-averaged spectrum best fitted by a power law function with an exponential high-energy cutoff.
GCN-45165 — GRB 260710A
· Wed, 15 Jul 2026 08:57:17 GMT
The AstroSat CZTI instrument detected a short duration gamma-ray burst, GRB 260710A, which was also observed by Fermi and Insight-HXMT/HE. The burst was detected in the 100-500 keV energy range with a peak count rate of 331 counts/s above the background.
GCN-45144 — GRB 260710A
· Mon, 13 Jul 2026 08:27:04 GMT
The Insight-HXMT/HE telescope detected a gamma-ray burst (GRB 260710A) on July 10, 2026, at 12:56:43.800 GMT, which was also detected by Fermi/GBM. The burst consisted of a single pulse with a duration (T90) of 1.2 seconds and a peak count rate of 727 counts per second.
GCN-45138 — GRB 260710A
· Sat, 11 Jul 2026 11:40:47 GMT
On July 10, 2026, the Fermi Gamma-ray Burst Monitor detected GRB 260710A, a gamma-ray burst with a duration of 1.9 seconds and a peak photon flux of 30 ph/s/cm^2. The event's spectrum was best fit by a power law function with an exponential high-energy cutoff, indicating a significant astronomical event.
GCN-45131 — GRB 260710A
· Fri, 10 Jul 2026 13:09:14 GMT
The Fermi Gamma-ray Burst Monitor (GBM) detected a likely long gamma-ray burst (GRB) on July 10, 2026, at 12:58:43 UT, designated GRB 260710A. The event was located at RA = 5.6, Dec = -85.0 (J2000 degrees) with a statistical uncertainty of 1.8 degrees.
AI summary generated Fri, 17 Jul 2026 15:46:50 GMT.