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GCN Circular 15703

GRB 140108A: D50+BART optical candidate detection
2014-01-08T18:27:38Z (10 years ago)
Jan Strobl at AI AS CR,Ondrejov <>
Jan Strobl (1,3), Martin Jelinek (2), Cyril Polasek (1), Michal Jakubec 
(1), Petr Skala (1,3) and Rene Hudec (1,3) (1. AI ASCR Ondrejov, 2. IAA 
CSIC Granada, 3. FEE CTU Prague)

We observed the field of the Swift GRB 140108A (Racusin et al., GCNC 
15699) with the 0.5m telescope D50 and 0.25m telescope BART in Ondrejov 
(Czech Republic), starting at 17:19:20 UT, i.e. 36s after the trigger.

We detect a new variable and uncatalogued object within the XRT 

         21:40:26.813 +58:44:40.17 (J2000) +-1".

Preliminary photometry provides brightness of R~18.0 300s after the GRB 

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