Electronic Telegram No. 790
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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CBAT@CFA.HARVARD.EDU (science)
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SUPERNOVA 2006td  [correction to CBET 789:  date of observation]
     U. K. Gurugubelli, G. C. Anupama, and D. K. Sahu, Indian Institute
of Astrophysics, report that a spectrum (range 360-910 nm) of 2006td
(cf. CBET 787), obtained on Dec. 28.77 UT with the Indian Astronomical
Observatory's 2-m Himalayan Chandra Telescope (+ HFOSC), shows it to be
a normal type-Ia supernova.  The spectrum is similar to that of SN 2003du
about 10 days past B-band maximum light (Anupama et al. 2005, A.Ap. 429,
667).  Identifying the narrow emission line seen at 666.7 nm with H_alpha
from the host galaxy (KUG 0155+361), a recession velocity of 4760 km/s is
estimated.  Using this value, the blue-shifted velocity of the Si II
635.5-nm absorption is estimated as 10900 km/s.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2006 CBAT
2006 December 29                 (CBET 790)               Daniel W. E. Green