Electronic Telegram No. 626
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html


SUPERNOVA 2006el IN UGC 12188
     S. Blondin, M. Modjaz, R. Kirshner, and P. Challis, Harvard-Smithsonian
Center for Astrophysics, report that spectra (range 350-740 nm) of SN 2006el
(cf. IAUC 8741), obtained on Sept. 16.26, 17.19, and 18.28 UT by M. Calkins
with the F. L. Whipple Observatory 1.5-m telescope (+ FAST), show 2006el to
be most similar to the type-IIb supernova 2006T (cf. CBET 425) at two weeks
past maximum light.  SN 2006el was classified both as a peculiar type-Ib
event by Blondin et al. (cf. CBET 612) and as a a type-IIb event by
Filippenko et al. (cf. CBET 614).  Blueshifted absorption features due to
H_alpha and H_beta are clearly seen in these three additional spectra,
thereby confirming the type-IIb identification given by Filippenko et al. on
CBET 614.  Adopting a recession velocity of 5150 km/s for the host galaxy
(from Huchra et al. 1999, Ap.J. Suppl. 121, 287), the maximum absorption in
the H_beta line is blueshifted by roughly 11500 km/s.  A comparison plot can
be seen at the following URL:
http://www.cfa.harvard.edu/oir/Research/supernova/spectra/sn2006el_comp2.gif


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2006 CBAT
2006 September 18                (CBET 626)               Daniel W. E. Green