SIMBAD references

E. S. Walker, Scuola Normale Superiore (SNS), Pisa; P. A. Mazzali, Max-Planck-Institut fuer Astrophysik, Garching, and Istituto Nazionale di Astrofisica (INAF), Padova; E. Pian, SNS, Pisa, and INAF, Trieste; Masaomi Tanaka, National Astronomical Observatory of Japan; Tomoki Morokuma, Institute of Astronomy, University of Tokyo; and Nozomu Tominaga and Kensho Mori, Konan University, report that they obtained a CCD spectrogram (range 350-800 nm) of 2012ct using the DOLORES spectrograph on the Telescopio Nazionale di Galileo situated on La Palma on May 24.9 UT. The spectrum shows a series of hydrogen Balmer features, implying that 2012ct is a type-II supernova. The hydrogen features show strong emission components. SN 2012ct is situated in the galaxy SDSS J163213.74+383920.0 and shows a redshift of lines consistent with the redshift of the host z = 0.039 (from Sloan Digital Sky Survey catalogue 3.C, dated 2004). Using the publicly available SNID code (Blondin and Tonry 2007, Ap.J. 666, 1024), 2012ct appears most similar to the type-II supernovae 2005cs, 1999em, and 2004et around maximum light.