STARITHM
Stellar flare detected from HD 224129 with X-ray luminosity of 7.8 x 10^30 erg/s
AI Summary
A stellar flare was observed from the star HD 224129 on September 21, 2026, at 14:01:16 UTC, with a net count rate of 0.05 counts/s and an estimated flux of approximately 1 x 10^-10 erg/s/cm^2 in the energy range of 0.5-4 keV.
Measurements
| Event | The EP-WXT trigger 01709319528 is likely a flaring star |
|---|---|
| Event ID | 01709319528 |
| Source | Einstein Probe WXT |
| Alert type | XRAY |
| Significance | medium |
| Trigger time (UTC) | Mon, 21 Sep 2026 14:01:16 GMT |
| Right ascension (J2000) | 358.865° |
| Declination (J2000) | 22.199° |
| Position error radius | 0.05161785° (3.1′) |
| Position from | notice einstein_probe.wxt.alert |
| Net count rate | 0.05 |
| Image SNR | 7.1 |
| GCN notices | 1 |
| GCN circulars | 1 |
Notices (1)
Einstein Probe WXT — XRAY · Mon, 21 Sep 2026 14:01:16 GMT
GCN Circulars (1)
GCN-45680 — The EP-WXT trigger 01709319528 is likely a flaring star
· Mon, 21 Sep 2026 14:42:01 GMT
The EP-WXT trigger 01709319528, detected on 2026-09-21, is identified as a stellar flare associated with the star HD 224129. The flare had an estimated flux of around 1 x 10^(-10) erg/s/cm^2 in the 0.5-4.0 keV range, corresponding to an X-ray luminosity of approximately 7.8 x 10^30 erg/s.
AI summary generated Thu, 05 Nov 2026 14:03:37 GMT.