TITLE: GCN CIRCULAR NUMBER: 44042 SUBJECT: IceCube-260315A/AT2026fpm: EP-FXT follow-up observation DATE: 26/03/18 04:57:04 GMT FROM: EP Team at NAOC/CAS <ep_ta@bao.ac.cn> J. P. Feng, B. Zhang (USTC), H. N. Yang, Y. Liu (NAO, CAS) The Follow-up X-ray Telescope (FXT) on board the Einstein Probe (EP) performed a follow-up observation of AT2026fpm (Segura et al., GCN 44023) at UTC 2026-03-16T23:31:53 (T0+45.21h) (The IceCube Collaboration, GCN 44017). An X-ray source was detected at R.A. = 176.1586 deg, DEC = -2.6035 deg (J2000) with an uncertainty of 10 arcsec in radius (90% C.L. statistical and systematic) and the flux of 1.1×10^(-13) erg/s/cm^2 in 0.5-10 keV band. The X-ray position is consistent with the optical transient AT2026fpm, which is spatially consistent with a QSO at z=1.389. 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). View this GCN Circular online at https://gcn.nasa.gov/circulars/44042. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...