Classification of SN 2005ec, a Type Ia Supernova
G. Aldering, S. Bailey, B.  C. Lee, S. Loken, P. Nugent, S. Perlmutter, R. Scalzo, R. C. Thomas, L. Wang, B. A. Weaver (Lawrence Berkeley National Laboratory, Berkeley, CA), C. Bonnaud, E. Pecontal (Centre de Recherche Astronomique de Lyon), P. Antilogus, G. Garavini, S. Gilles, R. Pain (Laboratoire de Physique Nucleaire et de Haute Energies de Paris), N. Blanc, S. Bongard, Y. Copin, E.  Gangler, L. Sauge, G. Smadja (Institut de Physique Nucleaire de Lyon), R. Kessler (Kavli Institute for Cosmological Physics, Chicago, IL), C. Baltay, D. Rabinowitz, A. Bauer (Yale)
The Nearby Supernova Factory reports that a spectrum (range 320-1000 nm) of SN2005ec (CBET #228), obtained September 21.6 UT with the Supernova Integral Field Spectrograph on the University of Hawaii 2.2-meter telescope, shows it to be a Type Ia supernova at an age of two weeks after maximum at a redshift of z = 0.03, in agreement with the host redshift (NGC 1690; Ostriker et al. 1988, AJ, 96, 1775). The spectrum is similar to SN 1994D at this phase, shifted to the host's redshift.
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