GCN Circular 13146

R. S�nchez-Ram�rez, J. Gorosabel, A. J. Castro-Tirado (IAA-CSIC Granada),
M. A. Rivero and G. G�mez-Velarde (GTC La Palma), on behalf of a larger
collaboration, report:

"Following the detection of the optical afterglow to GRB 120327A
(Sbarufatti et al. GCNC 13123), we have taken three spectra (400s each)
with the 10.4m GTC (+ OSIRIS) at the Spanish Observatorio del Roque de los
Muchachos (La Palma). The spectra, covering the range 3800-7800 A were
taken starting 2.33 hr post burst, and reveal a strong damped Ly-alpha
system besides several absorption features, including SiIV, SiII, CIV,
FeII, AlII (and others) at a common redshift of 2.813, consistent with the
value reported by Perley and Tanvir (GCNC 13133) and Kruehler et al.
(GCNC 13134)."

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