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IAUC 8359: 2004cj-2004cq; 2004cr

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                                                  Circular No. 8359
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 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  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


SUPERNOVAE 2004cj-2004cq
     Further to IAUC 8302, A. Connolly reports the discovery by the
'SDSS Collaboration' of several supernovae, detected during its
spectroscopic survey operations in 45-min-exposure spectra (range
approximately 380-920 nm) taken with the SDSS multi-fiber
spectrograph (with a field diameter of 3").  The positions given
for the supernovae below are those of the fiber center; each
supernova is at the center of its host galaxy, except for SN 2004ck,
which is 7" east and 8" north of its host's center.  Each supernova
was identified by subtracting the underlying galaxy spectrum and
then fitting supernova spectral templates to estimate the age of
the supernova.  The r magnitudes (on the AB system; cf. Fukugita et
al. 1996, A.J. 111, 1748) for each supernova are estimated after
subtracting the galaxy component.  Also given below is the type and
age (time in days after maximum; typical uncertainty +/- 5 days)
for each supernova.  Redshifts for the host galaxies (consistent
with those measured for the supernovae):  2004cj, 0.102; 2004ck,
0.029; 2004cl, 0.112; 2004cm, 0.005; 2004cn, 0.024; 2004co, 0.028;
2004cp, 0.054; 2004cq in UGC 9882, 0.022.

SN       2004 UT         R.A. (2000.0) Decl.      r     Type (Age)
2004cj   Jan. 29.34   10 22 50.12  +11 42 10.8   20.1   Ia (-3)
2004ck   Feb. 26.17   10 14 35.20  +11 52 05.7   19.8   Ia (+69)
2004cl   Mar. 20.11    8 29 33.47  + 8 52 05.4   21.5   Ia (-4)
2004cm   Mar. 24.46   14 07 24.96  +55 06 11.0   18.8   II (+21)
2004cn   Apr. 17.27   12 27 28.11  +42 20 28.6   21.1   Ia (+43)
2004co   Apr. 17.38   13 28 34.01  +41 51 08.2   17.4   Ia (+7)
2004cp   May  24.21   15 40 24.76  +32 51 57.2   19.6   Ia (+28)
2004cq   May  24.26   15 31 19.76  +40 16 52.1   17.5   Ia (+27)


SUPERNOVA 2004cr IN UGC 11603
     Further to IAUC 8357, M. Armstrong, reports his discovery of
an apparent supernova (mag 17.8) on unfiltered CCD images taken on
June 17.035 and 18.965 UT with a 0.35-m reflector.  SN 2004cr is
located at R.A. = 20h36m06s.84, Decl. = +63o44'12".4 (equinox
2000.0), which is approximately 45".9 west and 10".6 south of the
center of UGC 11603.  Nothing was visible at this position on his
images taken on 2001 Aug. 5, 31, and 2003 July 13 (limiting mag
about 19.5) or on Palomar Sky Survey red and blue plates.

                      (C) Copyright 2004 CBAT
2004 June 18                   (8359)            Daniel W. E. Green

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