GCN Circular 44441
Subject
EP260502a: Las Cumbres upper limit
Event
Date
2026-05-02T07:43:21Z (7 days ago)
From
Wenxiong Li at NAOC <liwenxiong1992@gmail.com>
Via
Web form
Wenxiong Li (NAOC), Iair Arcavi (TAU), Runduo Liang (NAOC), Ido Keinan (TAU), David Sand (U of Arizona)
We observed the position of EP260502a (Liu et al., GCN 44440) with a Las Cumbres 1m telescope at Cerro Tololo Interamerican Observatory, Chile, 19 mins after the Einstein Probe WXT trigger. We took 2x300s exposures in each visit in the broad optical w band.
We didn’t detect any uncataloged source within the EP-FXT error circle down to a 3-sigma limiting r-band mag of 20.0 mag.