GCN Circular 3584
S. Guziy, A. J. Castro-Tirado, A. de Ugarte Postigo, J. Gorosabel (IAA-CSIC Granada), J. de Le�n Cruz (IAC Tenerife), O. Bogdanov (Nikolaev State Univ.) and M. Jel�nek (IAA-CSIC), report: "Following the detection of GRB 050713 by Swift (Falcone et al. GCNC 3581), we obtained R-band images at the 2.5m Nordic Optical Telescope (+ ALFOSC) starting on June 13.295 UT (about 47 min after the burst onset). We confirm the presence of an optical source fainter than the DSS-2 limiting magnitude within the reported Swift/XRT error box, at RA(2000) = 21 22 09.53, Dec(2000) = +77 04 29.5 (+/- 0.4"), consistent with the position reported by Malesani et al. (GCNC 3582). Further observations are needed in order to confirm if this is the optical afterglow to GRB 050713. " This message can be cited.