TITLE:   GCN CIRCULAR
NUMBER:  46206
SUBJECT: The EP-WXT trigger 01709322330 is likely a AGN
DATE:    26/11/09 11:31:01 GMT
FROM:    EP Team at NAOC/CAS <ep_ta@bao.ac.cn>

J. Y. Cao, G. L. Huang (IHEP, CAS), Y. Q. Zhao (PRIC, USTC), H. Shun (NAOC, CAS) on behalf of the Einstein Probe (EP) team:

The EP-WXT trigger 01709322330 at the time of 2026-11-09T09:54:34 (UTC), is likely associated with 2MASS J00454334+1217119. The estimated flux of the flare is around 6 x 10^-11 erg/s/cm^2 in 0.5-4.0 keV, corresponding to an X-ray luminosity of around 3 x 0^37 erg/s. The WXT position of the source is R.A. = 11.437 deg, DEC = 12.286 deg (J2000) with an uncertainty of 3 arcmin in radius (90% C.L. statistical and systematic).

A follow-up observation with the Follow-up X-ray Telescope (FXT) was performed automatically. Within the WXT error circle, the corresponding X-ray source was detected at R.A. = 11.4301 deg, DEC = 12.2872 deg (J2000) with an uncertainty of 20 arcsec in radius (90% C.L. statistical and systematic), 2MASS J00454334+1217119. The estimated 0.5–10 keV flux is approximately 3 x 10^-11 erg/cm2/s corresponding to an X-ray luminosity of 2 x 10^37 erg/s.

Further information will be updated when the telemetry data is received.

Launched on January 9, 2024, EP is a space X-ray observatory to monitor the soft X-ray sky with X-ray follow-up capability (Yuan et al. 2022, Handbook of X-ray and Gamma-ray Astrophysics).