Einstein Probe detects known LMXB 4U 1745-203 with estimated flux of 5.22e-9 erg/s/cm^2

AI Summary

The Einstein Probe WXT detected an X-ray transient on September 8, 2026, which has been identified as the known Low-Mass X-ray Binary (LMXB) 4U 1745-203. Follow-up observations confirm the source with a precise position and flux measurement.

Measurements

Event ID01709306297
SourceEinstein Probe WXT
Alert typeGRB
Significancemedium
Trigger time (UTC)Tue, 08 Sep 2026 14:20:17 GMT
Right ascension (J2000)267.213°
Declination (J2000)-20.275°
Position error radius0.05023961°
Image SNR15.7
GCN notices1
GCN circulars1

Notices (1)

Einstein Probe WXT — GRB · Tue, 08 Sep 2026 14:20:17 GMT

GCN Circulars (1)

GCN-45533 — The EP-WXT trigger 01709306297 is likely the known LMXB 4U 1745-203 · Wed, 09 Sep 2026 01:55:23 GMT
The Einstein Probe (EP) detected an X-ray event on September 8, 2026, identified as the known low-mass X-ray binary 4U 1745-203. The estimated flux from the observation was approximately 5.22e-9 erg/s/cm^2 in the 0.5-10.0 keV energy range.

View live event on Starithm

AI summary generated Tue, 15 Sep 2026 05:17:10 GMT.