Electronic Telegram No. 230
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html


SUPERNOVA 2005ec in NGC 1690
     The "Nearby Supernova Factory" group (G. Aldering, S.
Bailey, B. C. Lee, S. Loken, P. Nugent, S. Perlmutter, R.
Scalzo, R. C. Thomas, L. Wang, and B. A. Weaver, Lawrence
Berkeley National Laboratory; C. Bonnaud and E. Pecontal, Centre
de Recherche Astronomique de Lyon; P. Antilogus, G. Garavini,
S. Gilles, and R. Pain, Laboratoire de Physique Nucleaire et de
Haute Energies de Paris; N. Blanc, S. Bongard, Y. Copin, E.
Gangler, L. Sauge, and G. Smadja, Institut de Physique Nucleaire
de Lyon; R. Kessler, Kavli Institute for Cosmological Physics,
Chicago; and C. Baltay, D. Rabinowitz, and A. Bauer, Yale
University) reports that a spectrum (range 320-1000 nm) of SN
2005ec (cf. CBET 228), obtained Sept. 21.6 UT with the Supernova
Integral Field Spectrograph on the University of Hawaii 2.2-m
telescope, shows it to be a type-Ia supernova at an age of two
weeks after maximum and at a redshift of z = 0.03, in agreement
with the host redshift (NGC 1690; Ostriker et al. 1988, A.J. 96,
1775).  The spectrum is similar to that of SN 1994D at this phase,
shifted to the host's redshift.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the formal IAU Circulars.

                         (C) Copyright 2005 CBAT
2005 September 21                (CBET 230)               Daniel W. E. Green