2010CBET.2131....1P

J. L. Prieto, Carnegie Observatories; R. Khan, Ohio State University; A. J. Drake, S. G. Djorgovski, A. Mahabal, M. J. Graham, and R. Williams, California Institute of Technology; M. Catelan, Pontificia Universidad Catolica de Chile; E. C. Beshore and S. M. Larson, Lunar and Planetary Laboratory, University of Arizona; and E. Christensen, Gemini Observatory, report the CRTS discovery of nine confirmed supernovae and two apparent supernovae in unfiltered images from the Catalina Sky Survey (CSS) 0.7-m telescope and the 1.5-m Mt. Lemmon Survey (MLS) telescope, with the discovery observations tabulated below. The spectroscopic types tabulated below were from observations made with the Boller and Chivens CCD Spectrograph on the 2.4-m Hiltner telescope at MDM Observatory between Jan. 8 and 15 UT; cross-correlation was made with a library of supernovae spectra using the SuperNova IDentification code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024), and the spectra reveal the following redshifts: 2009ns z = 0.05; 2009nu, 0.04; 2009nv, 0.09; 2009nw, 0.14; 2010I, 0.06; 2010J, 0.17; 2010K, 0.02; 2010L, 0.07; 2010M, 0.06.

---------------------------------------------------------------------------— SN 2009 UT R.A. (2000.0) Decl. Mag. Offset Type ---------------------------------------------------------------------------— 2009ns Oct. 15.33 2 15 37.60 - 3 25 41.0 16.9 0".5 W, 1".5 N Ia 2009nt Nov. 20.16 23 11 03.12 +20 26 19.6 19.6 0".1 E, 1".2 N 2009nu Dec. 15.14 2 20 37.69 + 2 24 14.7 18.7 6".4 E, 9".5 S II 2009nv Dec. 18.51 12 02 55.28 +15 35 02.4 19.1 8".7 W, 4".9 N Ia 2009nw Dec. 18.46 10 40 10.86 +22 37 35.5 19.4 1".8 W, 0".4 S IIn 2009nx Dec. 20.11 0 44 11.67 +23 44 25.4 19.0 0".7 W, 1".7 S ---------------------------------------------------------------------------—

---------------------------------------------------------------------------— SN 2010 UT R.A. (2000.0) Decl. Mag. Offset Type ---------------------------------------------------------------------------— 2010I Jan. 8.46 10 12 13.27 - 1 49 00.1 18.1 – Ia 2010J Jan. 8.49 11 15 26.75 + 8 06 43.7 19.7 1".8 W, 0".4 S Ia 2010K Jan. 8.49 12 02 46.87 + 2 24 06.1 16.4 1".4 W, 3".5 N II 2010L Jan. 12.12 2 23 28.78 + 5 35 30.6 18.5 0".5 E, 2".7 N Ia 2010M Jan. 13.14 3 21 37.59 +26 36 50.3 18.8 0".6 W, 1".8 S IIn ---------------------------------------------------------------------------—

Unfiltered follow-up CCD observations were made remotely by S. Howerton (Arkansas City, KS, U.S.A.) using the "Light Buckets 3" (LB3) 0.3-m telescope located at Rodeo, NM, U.S.A., and by J. Brimacombe (Cairns, Australia) using the New Mexico Skies 0.6-m RCOS telescope. Further magnitudes for 2009ns: 2009 Sept. 16.43 UT, [18.8 (CSS); Sept. 24.46, 18.3 (CSS) Oct. 27.29, 17.4 (CSS); Nov. 17.30, 18.1 (CSS); Dec. 15.15, 18.3 (CSS). Further magnitudes for 2009nt: 2009 Sept. 28.25, [20.4 (CSS); Oct. 26.19, 19.1 (CSS); Nov. 8.18, 19.3 (CSS); 2010 Jan. 3.05, 20.3 (RCOS). Further magnitudes for 2009nu: 2009 Oct. 16.40, [20.5 (CSS); Nov. 8.34, 18.9 (CSS); Nov. 23.19, 18.8 (CSS); 2010 Jan 2.64, 19.1 (RCOS). Further magnitudes for 2009nv: 2009 Nov. 23.52, [20.5 (CSS); 2010 Jan. 2.46, 19.0 (RCOS). Further magnitudes for 2009nw: 2009 May 7.23, [20.7 (CSS); Oct. 14.51, 20.2 (CSS); Nov. 19.47, 19.4 (CSS); 2010 Jan. 3.3, 19.5 (RCOS). Further magnitudes for 2009nx: 2009 Nov. 26.14, [20.3 (CSS); Dec. 11.16, 20.3 (CSS); 2010 Jan. 3.1, 19.3 (RCOS). Further magnitudes for 2010I: 2009 Dec. 16.52, [20.5 (CSS). Further magnitudes for 2010J: 2007 Oct. 30.52, [21.8 (MLS). Further magnitudes for 2010K: 2009 June 15.17, [17.5 (CSS); 2010 Jan. 10.49, 16.6 (LB3). Further magnitudes for 2010L: 2009 Nov. 23.19, [19.0 (CSS). Further magnitudes for 2010M: 2009 Nov. 22.28, [20.0 (CSS).