Electronic Telegram No. 3771 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION CBAT Director: Daniel W. E. Green; Hoffman Lab 209; Harvard University; 20 Oxford St.; Cambridge, MA 02138; U.S.A. e-mail: cbatiau@eps.harvard.edu (alternate cbat@iau.org) URL http://www.cbat.eps.harvard.edu/index.html Prepared using the Tamkin Foundation Computer Network SUPERNOVA 2014A IN NGC 5054 = PSN J13165936-1637570 Further to CBET 3743, H. Kim, W. Zheng, W. Li, and A. V. Filippenko, University of California at Berkeley; and S. B. Cenko, Goddard Space Flight Center, report the LOSS discovery of a supernova in NGC 5054 on unfiltered KAIT images: SN 2014 UT R.A. (2000.0) Decl. Mag. Offset 2014A Jan. 1.58 13 16 59.36 -16 37 57.0 16.4 12".5 E, 8".6 N Nothing was detected at this position on a KAIT image taken on 2013 June 16.2 UT (limiting mag about 18.0). A finding chart was posted at website URL http://astro.berkeley.edu/~zwk/findingchart/PSN_J13165936-16375704.jpg. The variable was designated PSN J13165936-1637570 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2014A based on the spectroscopic confirmation reported below. The type-Ia supernova 2004ab also appeared in NGC 5054 (cf. IAUC 8293). L. Le Guillou, M. Fleury, S. Baumont, and C.Balland, Laboratoire de Physique Nucleaire et de Hautes Energies, Paris; P.-F. Leget, Laboratoire de Physique Corpusculaire, Clermont-Ferrand; C. Inserra, S. Smartt, K. Smith, and D. Young, Queen's University, Belfast; M. Sullivan, University of Southampton; S. Taubenberger, Max-Planck-Institute fuer Astrophysik, Garching; S. Valenti, Las Cumbres Observatory Global Telescope; M. Fraser, Institute of Astronomy, Cambridge; O. Yaron, I. Manulis, and A. Gal-Yam, Wiezmann Institute of Science; and C. Knapic, R. Smareglia, and M. Molinaro, Astronomical Observatory of Trieste, on behalf of the PESSTO collaboration, report that optical spectroscopy (range 360-910 nm, resolution 1.8 nm; 300-s exposure), obtained on 2014 Jan. 2.30 UT with the New Technology Telescope (+ EFOSC2), shows that PSN J13165936-1637570 = 2014A is a type-II supernova at the host- galaxy redshift (z = 0.006); the best fit is to the spectrum of the type-IIP supernova 2003Z at 26 days after explosion. PESSTO classification spectra can be obtained from 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). E. Y. Hsiao, Las Campanas Observatory; and J. L. Prieto, Princeton University, report that a near-infrared spectrogram (range 800-2400 nm) of PSN J13165936-1637570 = SN 2014A was obtained on Jan. 2.35 UT with the FoldedPort Infrared Echellette (FIRE) spectrograph on the 6.5-m Magellan Baade Telescope. The spectrum indicates that 2014A is a type-II supernova more than a month past explosion. Adopting the redshift of the presumed host galaxy (NGC 5054) as z = 0.00581 (Pisano et al. 2011, Ap.J. Suppl. 197, 28), the near-infrared spectrum resembles that of SN 2013gd, a type-IIP supernova, at approximately 50 days past explosion. Jujia Zhang, Yunnan Astronimical Observatory (YNAO); and Xulin Zhao and Xiaofeng Wang, Tsinghua University, report on an optical spectrogram (range 370-900 nm) of PSN J13165936-1637570 = 2014A that was obtained on 2014 Jan. 2.93 UT with the 2.4-m telescope (+ YFOSC) at the LiJiang Gaomeigu Station of the YNAO. The spectrum is consistent with a type-II-P supernova after maximum light. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) shows that 2014A matches with a couple of type-IIP supernovae ranging from one week to a few weeks after maximum light. Adopting a redshift of 0.0058 for the host galaxy, NGC 5054 (Pisano et al. 2011, Ap.J. Supp. 197, 28), the absorption minimum of the H-alpha line is found to be blueshifted by about 4700 km/s. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2014 CBAT 2014 January 4 (CBET 3771) Daniel W. E. Green