Astronomers detect a stellar flare from an M-dwarf star following an Einstein Probe WXT trigger.
AI Summary
The Einstein Probe WXT detected a burst on July 6, 2026, which was later identified as a stellar flare from the M-dwarf star PM J15587+2351E, with an estimated X-ray luminosity of approximately 2.4 x 10^31 erg/s. Follow-up observations confirmed the optical counterpart using a robotic telescope.
Measurements
| Event ID | 01709274151 |
|---|---|
| Source | Einstein Probe WXT |
| Alert type | GRB |
| Significance | medium |
| Trigger time (UTC) | Mon, 06 Jul 2026 21:58:41 GMT |
| Right ascension (J2000) | 239.679° |
| Declination (J2000) | 23.873° |
| Position error radius | 0.05203776° |
| Image SNR | 7 |
| GCN notices | 1 |
| GCN circulars | 2 |
Notices (1)
Einstein Probe WXT — GRB · Mon, 06 Jul 2026 21:58:41 GMT
GCN Circulars (2)
GCN-45133 — EP 01709274
· Fri, 10 Jul 2026 17:13:50 GMT
An optical counterpart candidate was detected for the EP-WXT trigger 0170924151, identified as a stellar flare from the high-proper-motion M-dwarf star PM J15587+2351E. Observations were conducted using a robotic telescope equipped with CMOS FPA IMX533 at Observatoire de Bretagne Sud, with follow-up monitoring encouraged to characterize the recovery timescale.
GCN-45095 — The EP-WXT trigger 01709274151 is likely a flaring star
· Tue, 07 Jul 2026 02:12:06 GMT
The EP-WXT trigger 01709274151, detected on 2026-07-06, is likely a stellar flare from one of two candidate stars, StKM 1-1292 or PM J15587+2351E, with estimated X-ray luminosities of 2.3 x 10^(31) erg/s and 2.4 x 10^(31) erg/s respectively. This event was detected by the Einstein Probe, a space X-ray observatory launched in 2024.
AI summary generated Mon, 13 Jul 2026 11:05:56 GMT.