GCN Circular 15691
Dirk Grupe (Swift MOC, PSU) reports on behalf of the Swift team: We report on the Swift observations of the field of the Fermi GBM and LAT detected GRB 140104B (Xiong, GCN Circ. 15687, G. Vianello GCN Circ. 15684, respectively). Swift started observing the field of GRB 140104B at 2014-January-05 08:55, 15.5 hours after the GBM trigger for a total of 4073s. The XRT field covered the inner part of the GBM error circle reported by Xiong. We found four faint X-ray sources in the XRT. The first source is a star already present in the DSS, the other three sources are know sources: the star TYC 5564-19-1, the AGN HE 1432-0838, and the starburst galaxy IRAS F14325-0837. No other X-ray source was found. The 3-sigma upper limit at the center of the field is 1.4e-3 counts s^-1. This report is an official product of the Swift team.