[IAUC] CBET 2101: 20091230 : SUPERNOVAE 2009nc-2009nj

Mie Dic 30 18:59:05 ART 2009

                                                  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 en CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT en CFA.HARVARD.EDU (science)
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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