GCN Circular 38665
Subject
EP241223a
Date
2024-12-24T18:00:05Z (16 days ago)
Edited On
2024-12-25T06:39:21Z (16 days ago)
From
Xinglong Observatory at National Astronomical Observatories (NAOC), Chinese Academy of Sciences (CAS) <xinglong@nao.cas.cn>
Edited By
Vidushi Sharma at NASA GSFC/UMBC <vidushi.sharma@nasa.gov> on behalf of Xinglong Observatory at National Astronomical Observatories (NAOC), Chinese Academy of Sciences (CAS) <xinglong@nao.cas.cn>
Via
Web form
Junjie-Jin (NAOC), Haiyang-Mu(NAOC),Zheng-Jie (NAOC), Liguo-Fang (NAOC), Sen-Liu (NAOC), Zhou-Fan (NAOC), Hong-Wu (NAOC) report:
We observed the field of the X-ray transient, EP241223a by the Xinglong 2.16-m telescope located at Xinglong, Hebei, China.
Following the detection of EP241223a by EP-WXT (Li et al., GCN 36405), we observed the field of EP241223a using the 2.16-m telescope at Xinglong Observatory, NAOC. We obtained 6x600s clear-band frames with a median time of 2024-12-24T14:16:34, 10 hr after the EP trigger.
No uncatalogued optical transient is detected in the stacked images within the 3 arcmin EP/WXT error circle (Li et al., GCN 36405), down to 5-sigma limiting magnitudes of g ~ 22.5, calibrated with Pan-STARRS sources in the field. Also there is no apparent brightening for the catalogued sources within the error circle.