Electronic Telegram No. 2101 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://www.cfa.harvard.edu/iau/cbat.html SUPERNOVAE 2009nc-2009nj Further to CBET 2092, A. J. Drake, A. Mahabal, S. G. Djorgovski, M. J. Graham, and R. Williams, California Institute of Technology; J. Prieto, Observatories of Carnegie Institution of Washington; 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 supernovae in unfiltered Catalina Sky Survey (CSS) images, with the discovery data tabulated below. Spectrograms (range 390-800 nm) of each object were obtained with the Palomar 5-m reflector (+ DBSP) during Dec. 17, 18 and 19 UT. Cross- correlation was performed with a library of supernova spectra using the "SuperNova IDentification" code (Blondin and Tonry 2007, Ap.J. 666, 1024) with the types as tabulated below. SN 2009 UT R.A. (2000.0) Decl. Mag. Offset Type 2009nc Nov. 8.53 11 33 07.28 +24 41 30.8 18.6 0".2 E, 0".2 N Ia 2009nd Nov. 9.24 2 00 53.94 +13 52 15.3 19.3 0".1 E, 0".5 N Ia 2009ne Nov. 10.53 12 07 36.61 +20 42 13.4 18.6 0".8 W, 0".2 N Ia 2009nf Nov. 11.23 1 58 56.97 - 7 16 58.3 19.8 -- IIb 2009ng Nov. 21.14 1 37 28.24 +25 34 50.2 17.9 1".4 E, 0".2 S Ia 2009nh Nov. 26.44 9 10 59.01 +15 36 41.1 19.3 3".6 E, 1".6 S Ic 2009ni Dec. 16.40 8 44 41.49 - 6 19 35.3 18.4 0".5 W, 0".1 S Ia 2009nj Dec. 17.47 11 06 36.88 +34 19 51.6 18.8 0".7 W, 0".3 S IIn Further CSS magnitudes for 2009nc: May 7.23 UT, [20.2; Nov. 20.52, 19.1. Further CSS magnitudes for 2009nd: Oct. 14.28, [20.3; Dec. 10.17, 20.1. Further CSS magnitudes for 2009ne: May 17.25, [20.0; Nov. 10.53, 18.6; 24.51, 17.9; Dec. 19.53, 19.1. Further CSS magnitudes for 2009nf: Oct. 27.26, [20.3; Dec. 15.21, 20.0. There is no clear host galaxy for 2009ng in Digitized Sky Survey images or Palomar/Quest co-added images reaching mag about 22. Further CSS magnitudes for 2009ng: Nov. 6.34, [19.8; Dec. 18.17, 18.4. Further CSS magnitudes for 2009nh: Nov. 11.50, [19.8; 27.41, 19.2. Further CSS magnitudes for 2009ni: Oct. 27.52, [19.6. Further CSS magnitudes for 2009nj: May 26.23, [20.5; Dec. 17.47, 18.8. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2009 CBAT 2009 December 30 (CBET 2101) Daniel W. E. Green