Circular No. 8646

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 2005lw, 2005lx, 2005ly, 2005lz

Additional supernovae have been discovered on unfiltered CCD
images:  2005lw by R. R. Prasad and W. Li (LOSS/KAIT; cf. IAUC
8645); 2005lx by independently by Yoshimi Ichimura (Yoshimi-machi,
Hiki-gun, Saitama-ken, Japan, 0.28-m f/5.5 Schmidt-Cassegrain
reflector; communicated via S. Nakano, Sumoto, Japan) and by T.
Boles (Coddenham, England, 0.35-m reflector; tabulated data below
from Boles); and 2005ly and 2005lz by T. Puckett (0.60-m automated
supernova patrol telescope; cf. IAUC 8645; with G. Sostero for
2005ly and with R. Gagliano for 2005lz).

SN      2005 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2005lw  Dec. 14.57  11 08 03.21  -12 29 09.4  18.8  1".5 E, 6".5 S
2005lx  Dec. 19.95   2 22 39.01  +28 15 07.1  18.1  24".8 W, 17".9 S
2005ly  Dec. 21.12   1 23 28.84  +30 46 45.7  18.6  5".4 E, 18".2 S
2005lz  Dec. 24.07   2 10 49.76  +34 58 58.2  17.8  13".8 E, 6".3 S

Additional KAIT magnitudes for 2005lw in IC 672:  Jan. 20.48 UT,
[19.5; Nov. 21.58, [18.5; Dec. 15.60, 18.4.  SN 2005lw is a type-II
supernova (cf. CBET 321).  Additional unfiltered CCD magnitudes for
2005lx in IC 221:  2003 Oct. 30, [18.5 (K. Itagaki, Yamagata, Japan;
via Nakano); 2005 Oct. 27 and Nov. 9, [19.5 (Boles); Dec. 19.667,
16.9 (Ichimura; measured by Nakano); 20.401, 17.0 (Ichimura);
20.417, 18.0 (R. and Y. Kushida, Kitakoma, Yamanashi, Japan; via
Nakano); 20.596, 17.6 (K. Kadota, Ageo, Japan; via Nakano).  Boles
adds that nothing is visible at the location of 2005lx on Digitized
Sky Survey images from 1989 (limiting red mag 21.0) and 1987
(limiting blue mag 20.5).  Additional position end figures for
2005lx:  Dec. 19.687, 38s.8, 06" (offset from galaxy center:  27"
west, 19".5 south; measured by Nakano from Ichimura's jpeg image);
Dec. 20.417, 38s.95, 08".0 (R. Kushida, through clouds with a
0.40-m f/10 reflector; measured by Y. Kushida); Dec. 20.596, 39s.00,
07".7 (Kadota, 0.25-m f/5 reflector).  Additional unfiltered CCD
magnitudes for 2005ly in UGC 934, Nov. 3, 10, 17, 24, and Dec. 10,
[19.3-[19.9 (Puckett); 21.77, 17.8 (Sostero, 0.45-m reflector,
Udine, Italy).  SN 2005ly is a type-IIn supernova (cf. CBET 327).
Additional unfiltered CCD magnitudes for 2005lz in UGC 1666:  Sept.
11, [19.6 (Puckett); Dec. 25.11, 17.7 (J. Newton, Portal, AZ,
0.35-m reflector).  Nothing was present at the position of 2005lz
on images taken by Puckett on numerous dates from 1999 to 2005
(limiting mag ranging from 18.4 to 20.1).  SN 2005lz is a type-Ia
supernova (cf. CBET 337).

Host galaxy info: vel = 7710 km/s, 0.5 x 0.2, 15.22

SN type info: II

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