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GCN Circular 37361

Subject
GRB 240825A: SOAR observations
Date
2024-08-31T13:26:09Z (18 days ago)
From
James Freeburn at Swinburne University of Technology <jamesfreeburn54@gmail.com>
Via
Web form
J. Freeburn (Swinburne/OzGrav) and I. Andreoni (UNC/UMD/NASA)

We observed the field of GRB 240825A (The Fermi GBM team,
GCN 37273Not found
 
 
; Gupta et al., GCN 37274Not found
 
 
; Lalla et al., GCN 37288Not found
 
 
;
Evans et al., 37290; Gropp et al., GCN 37294Not found
 
 
; Joshi et al.,
GCN 37298Not found
 
 
; Sharma et al., GCN 37301Not found
 
 
; Frederiks et al., GCN 37302Not found
 
 
;
Wang and Xiong, GCN 37315Not found
 
 
; Moss et al., GCN 37355Not found
 
 
) with the 
Goodman High Throughput Spectrograph mounted on the SOAR telescope 
in imaging mode. We took one 300s exposure each in filters
g,r and i between 2024-08-31T04:45:51 and 2024-08-31T05:00:23 UTC.

We place upper limits on the optical counterpart to GRB 240825A
(Gupta et al., GCN 37274Not found
 
 
; Jiang et al., GCN 37275Not found
 
 
; Dutton et al., 
GCN 37276Not found
 
 
; Odeh et al., GCN 37277Not found
 
 
; Zhang et al., GCN 37278Not found
 
 
; 
Li et al., GCN 37280Not found
 
 
; Izzo et al., GCN 37287Not found
 
 
; Lipunov et al., 
GCN 37289Not found
 
 
; Leonini et al., GCN 37291Not found
 
 
; Wu et al., GCN 37292Not found
 
 
; 
Martin-Carrillo et al., GCN 37293Not found
 
 
; Brivio et al., GCN 37295Not found
 
 
; 
Kuin et al., GCN 37296Not found
 
 
; Odeh et al., GCN 37299Not found
 
 
; Le Floc'h et al., 
GCN 37300Not found
 
 
; Guiffreda et al., GCN 37303Not found
 
 
; Zheng et al., GCN 37304Not found
 
 
; 
Wang et al., GCN 37306Not found
 
 
; Maksut et al., GCN 37307Not found
 
 
; Melandri et al., 
GCN 37310Not found
 
 
; Romanov, GCN 37335Not found
 
 
; Moskvitin et al., GCN 37336Not found
 
 
; 
Qiu et al., GCN 37338Not found
 
 
).  Zeropoints for each filter were measured 
using the Pan-STARRS1 catalogue. Our AB magnitude 5-sigma upper 
limits are as follows:
g > 23.2
r > 23.1
i > 22.8