Electronic Telegram No. 225
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 2005dz IN UGC 12717
     V. Stanishev and A. Goobar, Stockholm University, report
that a spectrum of SN 2005dz (cf. IAUC 8598), obtained by J.
Naranen (Helsinki University) on Sept. 12.9 UT with the Nordic
Optical Telescope (+ ALFOSC; range 350-900 nm), reveals a young
type-II supernova with blue continuum and superimposed P-Cyg
profiles.  The spectrum closely resembles that of SN 1999em
around maximum (Hamuy et al. 2001, Ap.J. 558, 615), but the
continuum is bluer and the the P-Cyg absorptions more shallow.
Adopting a recession velocity of 5692 km/s for the host galaxy
(Huchra et al. 1999, Ap.J. Suppl. 121, 287, as quoted by NED),
the absorption troughs of H_beta and H_alpha indicate expansion
velocity of about 11000 km/s.


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      superseded by text appearing later in the formal IAU Circulars.

                         (C) Copyright 2005 CBAT
2005 September 13                (CBET 225)               Daniel W. E. Green