Circular No. 8720

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) BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science) URL http://cfa-www.harvard.edu/iau/cbat.html Phone 617-495-7244/7440/7444 (for emergency use only)

SUPERNOVAE 2006cs, 2006ct, 2006cu, 2006cv, 2006cw

Five new apparent supernovae found on unfiltered CCD frames
have been reported:  2006cs by N. Y. Lee and W. Li (LOSS/KAIT; cf.
IAUC 8716); 2006ct by R. Quimby and P. Mondol (cf. IAUC 8713); and
the rest by the 'Nearby Supernova Factory' collaboration (cf. CBETs
538, 540).

SN      2006 UT     R.A.  (2000.0)  Decl.    Mag.     Offset
2006cs  June 3.29  13 45 33.89  +35 36 36.6  17.8  13".4 W, 3".8 S
2006ct  May 25.21  12 09 57.03  +47 05 43.9  17.0  3".4 E, 1".4 S
2006cu  May 29.4   14 47 43.31  + 9 39 33.9  18.1      --
2006cv  June 5.4   14 47 47.83  +23 17 58.6  19.1      --
2006cw  June 5.4   15 03 01.01  +21 41 40.6  19.4      --

Additional magnitudes for 2006cs in MCG +06-30-79:  May 18.29 UT,
[19.0; June 4.31, 17.7.  A spectogram of 2006cs obtained on June
5.29 shows it to be a type-Ia supernova around maximum light
(details on CBET 539).  Additional magnitudes for 2006ct, which is
also a type-Ia supernova (details on CBET 537):  2004 Dec. 15-2006
Jan. 28, [18.7 (co-addition of images); May 31.21, 16.9; June 3.19,
16.6.  SNe 2006cu and 2006cv are type-IIn supernovae, and 2006cw is
a type-II supernova (cf. CBET 538, 540).

Host galaxy info: vel = 7098 km/s, 0.7 x 0.4 ; 15.1; S0?

SN type info: Ia

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