2011CBET.2641....2C

I. Cosimo and F. Bufano, Istituto Nazionale di Astrofisica (INAF), Osservatorio Astrofisico di Catania; S. Benetti and S. Valenti, INAF, Osservatorio Astronomico di Padova; A. Pastorello, Queen's University, Belfast; and G. Pignata, Universidad Andres Bello, on behalf of a larger collaboration, report on a spectroscopic observation (range 365-925 nm; resolution 1.8 nm) of 2011N obtained on Jan. 25.05 UT with the EFOSC2 spectrograph mounted on the New Technology Telescope at the European Southern Observatory. The spectrum of 2011N is that of a heavily reddened type-Ic supernova; from a comparison with a library of supernova spectra performed with the "GELATO" code (Harutyunyan et al. 2008, A.Ap. 488, 383; available at the following website URL: https://gelato.tng.iac.es/login.cgi), 2011N is found to be most similar to SN 2004aw (Taubenberger et al. 2006, MNRAS 371, 1459) around maximum light. A reddening of E(B-V) about 0.7 and a redshift of 0.01135, as derived from the EW and position of the Na I D interstellar doublet, respectively, have been assumed.