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GCN Circular 14114

GRB 121226A: 10.4m GTC optical observations
2012-12-28T01:49:33Z (11 years ago)
Javier Gorosabel at IAA-CSIC <>
A.J. Castro-Tirado, M. Jelinek, R. S�nchez-Ram�rez, J.C. Tello (IAA-CSIC),
J.M. Gonz�lez-P�rez (GTC/IAC), S. Guziy (Mykolaiv Nat. Univ.), D.
P�rez-Ram�rez (Univ. de Ja�n), P. Ferrero (IAC), J.M. Castro Cer�n (ESAC),
A. Fern�ndez-Soto (IFCA-UNICAN) and J. Gorosabel (IAA-CSIC), report:

�We have obtained deep r�i�z� images with the 10.4m GTC telescope at
Observatorio del Roque de los Muchachos for GRB 121226A (Krimm et al. GCNC
14105; Baumgartner et al. GCNC 14111) starting on Dec 27.230--27.261 UT
(i.e., 10.3--11.1 hr post burst). A faint object is detected at
RA(J2000)=11:14:34.14, DEC(J2000)=-30:24:22.9 (0.7" error in each
coordinate), consistent with the position of the X-ray afterglow
(Littlejohns et al. GCNC 14112). The object shows a magnitude around
r'~25. At this stage we cannot conclude whether this is the GRB 121226A
optical afterglow or the underlying host galaxy.�
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