[IAUC] CBET 679: 20061019 : SUPERNOVA 2006jd in UGC 4179

Vie Jun 22 17:04:38 ART 2007

                                                  Electronic Telegram No. 679
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 2006jd in UGC 4179
     S. Blondin, M. Modjaz, R. Kirshner, and P. Challis, Harvard-Smithsonian
Center for Astrophysics; and T. Matheson, National Optical Astronomy
Observatory, report that a spectrum (range 350-740 nm) of SN 2006jd (cf.
CBET 673), obtained on Oct. 17.51 UT by E. Mamajek with the F. L. Whipple
Observatory 1.5-m telescope (+ FAST), shows it to be a type-IIb supernova.
Cross-correlation with a library of supernova spectra indicates that 2006jd
is similar to SN 1993J at 11 days past explosion (Matheson et al. 2000, A.J.
120, 1487; see the following URL for a comparison plot:
http://www.cfa.harvard.edu/oir/Research/supernova/spectra/sn2006jd_comp.gif).


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                         (C) Copyright 2006 CBAT
2006 October 19                  (CBET 679)               Daniel W. E. Green