GCN 44775: EP260530a/AT 2026nwl: KAIT optical observations

2026-06-02T18:47:59.526Z | rev 0 | event: EP260530a

WeiKang Zheng (UCB), Xuhui Han (NAOC), Pinpin Zhang (NAOC) and

Alexei V. Filippenko (UCB) report on behalf of the KAIT GRB team:


The 0.76-m Katzman Automatic Imaging Telescope (KAIT), located at

Lick Observatory, observed the field of EP260530a (Wu et al.,

ATel #17824) on May 31 and again on Jun 02 UT. A set of clear

(roughly R) filter images were obtained. We clearly detected the

bright CV outburst associated with AT 2026nwl (TNS Astronomical

Transient Report 306622, 306654; TNS Classification Reports 23885;

Globus et al., GCN 44759).  We measure its brightness decayed from

14.4 +/- 0.1 mag (Vega) at 0.98d after the burst, to 15.6 +/- 0.1

mag at 2.95d after the burst.