SIMBAD references

D. Sand, Harvard-Smithsonian Center for Astrophysics and Las Cumbres Observatory Global Telescope Network; M. L. Graham and C. Bildfell, University of Victoria; D. W. Just, S. Herbert-Fort, and S. Sivanandam, Steward Observatory; C. J. Pritchet and H. Hoekstra, Leiden University; and D. Zaritsky, Steward Observatory, report that four more supernovae (cf. CBET 1727) were discovered on g'- and r'-band images obtained at the Canada- France-Hawaii Telescope (+ Megacam). Auxiliary imaging/photometry was obtained with the Steward Observatory 2.3-m reflector (+ 90Prime imager). All spectroscopy was obtained with Hectospec on the MMT at Mount Hopkins (during "queue observations"). The publicly available Supernova Identification code of Blondin and Tonry (2007, Ap.J. 666, 1024) was utilized for determining spectroscopic types.

---------------------------------------------------------------------------— SN 2009 UT R.A. (2000.0) Decl. g' r' Offset ---------------------------------------------------------------------------— 2009cc Feb. 27 9 23 59.36 +14 09 51.3 20.6 20.3 0".43 E, 1".20 N 2009cd Feb. 28 10 23 18.59 +49 05 16.5 21.3 21.4 0".1 E, 1".33 S 2009ce Mar. 2 14 31 01.13 +25 46 57.9 19.8 19.4 0".83 E, 0".14 N 2009cf Mar. 2 14 53 37.34 +18 21 08.3 20.7 20.1 0".12 W, 0".76 S ---------------------------------------------------------------------------—

A spectrum of 2009cc obtained on Mar. 16 UT shows it to be a normal type-Ia supernova (at z = 0.138), roughly 30 days after maximum; additional magnitudes for 2009cc: Jan. 26, g' = 22.8 ± 0.3, r' = 21.8 ± 0.3; Feb. 21, g' = 19.4 ± 0.1, r' = 19.1 ± 0.1. The apparent host galaxy of 2009cc has magnitudes g' = 18.79 ± 0.03 and r' = 17.84 ± 0.01. A spectrum of 2009cd obtained on Mar. 16 shows it to be a normal type-IIP supernova at z = 0.143; additional magnitudes for 2009cd: Feb. 20, g' = 21.6 ± 0.1, r' = 21.9 ± 0.1. The apparent host galaxy of 2009cd has magnitudes g' = 21.21 ± 0.03 and r' = 21.18 ± 0.02. A spectrum of 2009ce obtained on Mar. 17 shows it to be a normal type-Ia supernova (at z = 0.095), roughly 25 days after maximum; additional magnitudes for 2009ce: Feb. 20, g' = 18.5 ± 0.15, r' = 18.3 ± 0.15. The apparent host galaxy of 2009ce has magnitudes g' = 19.29 ± 0.03 and r' = 18.69 ± 0.01. A spectrum of 2009cf obtained on Mar. 17 shows it to be similar to SN 1984L, a normal type-Ib supernova roughly 30 days after maximum at z = 0.09; the apparent host galaxy of 2009cf has magnitudes g' = 21.52 ± 0.02 and r' = 21.21 ± 0.02.