2012CBET.3282....3I

C. Inserra, S. J. Smartt, M. Fraser, D. Young, and K. Smith, Queen's University, Belfast; F. Cellier-Holzem and P. El-Hage, Laboratoire de Physique Nucleaire et de Hautes Energies, Paris; Y.-C. Pan, University of Oxford; M. Sullivan, University of Southampton; I. Arcavi, A. Gal-Yam, and O. Yaron, Wiezmann Institute of Science; S. Benetti, A. Pastorello, and S. Valenti, Istituto Nazionale di Astrofisica, Padova; and S. Taubenberger, A. Sternberg, and S. Benitez-Herrera, Max-Planck-Institute fuer Astrophysik, Garching, on behalf of the PESSTO collaboration (see Valenti et al., posted at website URL http://www.astronomerstelegram.org/?read=4037), report that optical spectroscopy (range 360-910 nm), obtained on Aug. 26 with the New Technology Telescope (+ EFOSC2), show that PSN J21015899-4816259 = SN 2012fw is a type-Ia supernova at redshift z = 0.010; the best fit is to the spectrum of SN 2002ck at maximum light, within a few days of the explosion. PESSTO classification spectra can be obtained at website URL http://www.pessto.org/; classification is made via SNID (Blondin and Tonry 2007, Ap.J. 666, 1024) and GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383).