Stellar flare detected from LP 435-538 associated with EP-WXT trigger 01709258652

AI Summary

A stellar flare from LP 435-538 was detected by EP-WXT, with follow-up confirming a decline in g-band magnitude and X-ray emission consistent with the flare.

Notices (1)

Einstein Probe WXT — GRB · Thu, 26 Feb 2026 13:49:59 GMT

GCN Circulars (4)

GCN-44400 — The EP-WXT trigger 01709258652 · Thu, 23 Apr 2026 13:31:19 GMT
The EP-WXT trigger 01709258652 was observed with the AZT-33IK telescope starting 8 hours after the trigger. No significant variability was detected within 1 hour of the observations.

GCN-43889 — EP-WXT trigger 01709258652 · Sun, 01 Mar 2026 13:18:28 GMT
The 50cm Telescope at Yunnan University observed a stellar flare in the star LP 435-538, which was triggered by the EP/WXT satellite. The flare caused a decline in the star's g-band magnitude from 14.41 to 14.89 over a period of approximately 47 minutes. This observation supports the previous finding of a stellar flare associated with the EP X-ray trigger.

GCN-43857 — EP-WXT trigger 01709258652 · Fri, 27 Feb 2026 02:06:29 GMT
The SVOM/C-GFT team confirmed a stellar flare using g-, r-, and i-band observations with the Chinese Ground Follow-up Telescope (C-GFT) at Jilin Station. The flare, detected by EP/WXT, occurred in the star LP 435-538 and caused a decline in magnitude from 13.8 to 15.4 in the g-band over approximately 110 minutes.

GCN-43849 — The EP-WXT trigger 01709258652 is likely a flaring star · Thu, 26 Feb 2026 16:09:54 GMT
The EP-WXT trigger 01709258652, detected on 2026-02-26, is likely a stellar flare from the star LP 435-538. The estimated flux of the flare is around 8e-11 erg/s/cm^2 in the 0.5-4.0 keV energy range, corresponding to an X-ray luminosity of approximately 2.071e+31 erg/s. A follow-up observation with the FXT telescope confirmed the source position and detected X-ray emission consistent with the star.