GCN Circular 41266
Subject
EP250806a:SVOM/VT refined analysis
Event
Date
2025-08-07T14:41:19Z (17 days ago)
From
Liping Xin at NAOC, SVOM <xlp@nao.cas.cn>
Via
Web form
L. P. Xin, H. L. Li, Y. N. Ma, Y. L. Qiu, C. Wu, Z. H. Yao, Y. Xu, J. Wang, P. P. Zhang, W. J. Xie, Y. J. Xiao, H. B. Cai, L. Lan, J. S. Deng, J. Y. Wei (NAOC), J. Palmerio (CEA) report on behalf of the SVOM/VT team.
After the refined analysis, the candidate reported (Xin et al., GCN 41254) was a cataloged source in Legacy survey, not an uncatalogued source, as reported by Becerra et al., (GCN 41255).
No any candidates were found in VT images within EP/FXT errorbox (Yang et al., GCN 41246; Liang et al., GCN 41256), the 3 sigma limit is about VT_B~23.6 mag and VT_R~23.1 mag in AB mag at 8.19 hours after the EP/WXT trigger.
The results are consistent with the reports (Fortin et al. GCN 41248; Becerra et al., GCN 41255; Lipunov et al., GCN 41258; Kumar et al., GCN 41263).
The Space Variable Objects Monitor (SVOM) is a China-France joint mission led by the Chinese National Space Administration (CNSA, China), National Center for Space Studies (CNES, France) and the Chinese Academy of Sciences (CAS, China), which is dedicated to observing gamma-ray bursts and other transient phenomena in the energetic universe. VT was jointly developed by Xi'an Institute of Optics and Precision Mechanics (XIOPM), CAS and National astronomical observatories (NAOC), CAS.