A stellar flare from HD 183870B detected by Einstein Probe WXT.
Event ID: 01709274014
Significance: medium
Notices: 1
Circulars: 2
Generated: Mon, 06 Jul 2026 15:57:33 GMT
AI Summary
The Einstein Probe WXT detected a stellar flare from the high proper motion star HD 183870B with an estimated flux of 1.8 x 10^-10 erg/s/cm^2 in the 0.5-4.0 keV range. Follow-up observations by KAIT confirmed the star's brightness decreased significantly over 1.2 hours.
Notices (1)
Einstein Probe WXT — GRB · Mon, 06 Jul 2026 09:44:54 GMT
GCN Circulars (2)
GCN-45087 — The EP-WXT trigger 01709274014
· Mon, 06 Jul 2026 14:39:25 GMT
The Katzman Automatic Imaging Telescope (KAIT) at Lick Observatory confirmed a stellar flare from the star HD 183870B, responding to the EP-WXT trigger 01709274014. The star's brightness decreased significantly in all observed bands, particularly in the B band, from ~13.6 mag to ~14.8 mag over 1.2 hours, confirming the X-ray trigger's association with the flare.
GCN-45086 — The EP-WXT trigger 01709274014 is likely a flaring star
· Mon, 06 Jul 2026 10:52:31 GMT
The Einstein Probe (EP) detected a stellar flare from the high proper motion star HD 183870B on July 6, 2026, with an estimated flux of 1.8 x 10^(-10) erg/s/cm^2 in the 0.5-4.0 keV range, corresponding to an X-ray luminosity of around 6.73 x 10^(30) erg/s. This event highlights the EP's capability to monitor and detect soft X-ray events.