GCN Circular 37511

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 EP240913a/GRB 240913C (Li et al.,

GCN 37492
Not found
 
 
; Yin et al., GCN Circ. 37493
Not found
 
 
; Dasgupta et al., GCN 37505
Not found
 
 
;

Pawar et al., GCN 37510
Not found
 
 
) starting at 06:12 UT, Sep 14th, ~18.6

hours after the trigger. A set of 30x60s images were obtained in

the clear (roughly R) filters. Preliminary analysis do not reveal

any new optical counterpart candidate within the Swift-XRT error

circle of the X-ray counterpart candidate (Jiang et al., GCN 37497
Not found
 
 
)

neither in single image, nor in the co-add images, consistent with

the reports from Asquini et al. (GCN 37499
Not found
 
 
) and Zhu et al. (GCN

37500
Not found
 
 
, 37501
Not found
 
 
). The typical limiting magnitude of our single clear

image is about 19.5 mag, and about 20.5 mag in the co-add image.