TITLE: GCN CIRCULAR NUMBER: 36825 SUBJECT: EP240703a: KAIT optical upper limit DATE: 24/07/05 01:45:56 GMT FROM: Weikang Zheng at UC Berkeley weikang@berkeley.edu
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, responded to the fast X-ray transient EP240703a
from the Einstein Probe (Wang et al. GCNC 36807) starting at 1.28 days
after the trigger. A set of 30x60s images were obtained in the clear
(roughly R) filters. Preliminary analysis do not reveal any optical
counterpart candidate within the 3 arcmin radius EP-WXT error box
(Wang et al. GCN 36807) neither in single image, nor in the co-add
images, consistent with the reports from Aryan et al. (GCN 36819),
An et al. (GCN 36820), Bochenek & Perley (GCN 36821), Fernandez-Garcia
et al. (GCN 36822) and Volnova et al. (GCN 36824). The typical limiting
magnitude of our single clear image is about 19.0 mag.
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