[IAUC] CBET 1367: 20080507 : SUPERNOVAE 2008ce AND 2008cf

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                                                  Electronic Telegram No. 1367
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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SUPERNOVAE 2008ce AND 2008cf
     J.-H. Woo, University of California, Santa Barbara; N. Bennert,
University of California, Riverside; and J. M. Silverman and A. V.
Filippenko, University of California, Berkeley, report that inspection of a
CCD spectrum (range 330-1050 nm), obtained on May 4 UT with the Shane 3-m
telescope at Lick Observatory, reveals that 2008ce (CBETs 1363, 1364) is a
type-II supernova.  The spectrum exhibits hydrogen Balmer lines having P-Cyg
profiles.  Removing the host-galaxy recession velocity of 2779 km/s,
calculated from narrow emission lines, the minimum of the H-alpha absorption
is blueshifted by about 7000 km/s.
     J.-H. Woo, R. A. Street, and M. G. Hidas, University of California,
Santa Barbara; and J. M. Silverman, T. N. Steele, and A. V. Filippenko,
University of California, Berkeley, report that inspection of a CCD spectrum
(range 360-920 nm), obtained as above on May 7 UT, reveals that 2008cf
(CBET 1365) is a type-Ia supernova near maximum brightness.  Removing a
host-galaxy recession velocity of 13800 km/s (from a narrow emission lines),
the minimum of the Si II 635.5-nm absorption feature is found to be
blueshifted by about 11000 km/s.


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                         (C) Copyright 2008 CBAT
2008 May 7                       (CBET 1367)              Daniel W. E. Green