STARITHM
A stellar flare detected by Einstein Probe WXT from low-mass star 1RXS J043137.9-304237
AI Summary
The Einstein Probe WXT triggered on October 16, 2026, detecting a flare from the low-mass star 1RXS J043137.9-304237, with a flux of approximately 1.4e-10 erg/s/cm^2 in the 0.5-4 keV range.
Measurements
| Event ID | 01709321333 |
|---|---|
| Source | Einstein Probe WXT |
| Alert type | GRB |
| Significance | medium |
| Trigger time (UTC) | Fri, 16 Oct 2026 03:43:00 GMT |
| Right ascension (J2000) | 67.926° |
| Declination (J2000) | -30.699° |
| Position error radius | 0.05129589° |
| Image SNR | 7.1 |
| GCN notices | 1 |
| GCN circulars | 1 |
Notices (1)
Einstein Probe WXT — GRB · Fri, 16 Oct 2026 03:43:00 GMT
GCN Circulars (1)
GCN-45954 — The EP-WXT trigger 01709321333 is likely a flaring star
· Fri, 16 Oct 2026 04:40:39 GMT
The EP-WXT trigger 01709321333 detected on October 16, 2026, is likely a stellar flare from the low-mass star 1RXS J043137.9-304237, with an estimated flux of 1.4e-10 erg/s/cm^2 in the 0.5-4.0 keV range and an X-ray luminosity of around 1.1e32 erg/s. This event was observed by the Einstein Probe (EP) space X-ray observatory, which monitors the soft X-ray sky.
AI summary generated Fri, 16 Oct 2026 04:49:40 GMT.