[IAUC] CBET 1093: 20071004 : SUPERNOVA 2007kj IN NGC 7803

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                                                  Electronic Telegram No. 1093
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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SUPERNOVA 2007kj IN NGC 7803
     F. Olivares, University of Chile; and G. Folatelli and N. Morrell,
Las Campanas Observatory, on behalf of the Carnegie Supernova Project,
report that a spectrum of 2007kj (cf. CBET 1092) obtained on Oct. 3.2 UT
with the European Southern Observatory 3.6-m telescope (+ EFOSC2) at La
Silla, shows this to be a type-Ib/c supernova.  Assuming the NED recession
velocity of 5366 km/s for the host galaxy (from Huchra et al. 1999, Ap.J.
Suppl. 121, 287), the 'superfit' spectrum-comparison code (Howell et al.
2005, Ap.J. 634, 1190) shows that 2007kj is similar to SN 1999ex (cf. IAUC
7310) at five days after maximum light.  Weak He I 587.5-, 706.5-, and
728.1-nm lines are detected with absorption minima wavelengths that
indicate an expansion velocity of 7300 km/s, after correcting for the
host-galaxy velocity given above.  A strong absorption is observed at about
625.0 nm, which could be identified as high-velocity (14000 km/s) H-alpha,
although no evidence is found of H-beta at the same expansion velocity.


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                         (C) Copyright 2007 CBAT
2007 October 4                   (CBET 1093)              Daniel W. E. Green