Circular No. 8297

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 2004ak, 2004al, AND 2004am

Further to IAUC 8288, D. Singer, H. Pugh, and W. Li report the
LOSS discovery of three apparent supernovae on unfiltered KAIT
images:

SN      2004 UT        R.A.  (2000.0)  Decl.   Mag.     Offset
2004ak   Feb. 29.24   8 29 47.57  +48 46 22.9  18.4   26".4 W, 26".9 S
2004al   Mar.  3.23   9 37 06.66  +22 10 18.9  16.8   7".0 W, 0".9 S
2004am   Mar.  5.23   9 55 46.61  +69 40 38.1  17.0   30" W, 7" S

Additional KAIT magnitudes for SN 2004ak in UGC 4436, Jan. 17.31
UT, [19.5; Mar. 5.30, 17.6.  Additional KAIT magnitudes for SN
2004al in ESO 565-G25, Feb. 8.36, [18.0; Mar. 4.23, 16.6.  SN
2004am in M82 (= NGC 3034) is present on numerous earlier KAIT
images, as indicated by the following measured magnitudes, but it
sits on a bright (H II?) spot (which was subtracted for the derived
magnitudes), causing the detection software to miss the new object:
2003 May 2.17 UT, [19.0; Nov. 21.57, 16.0; Nov. 23.54, 16.1; Dec.
28.43, 16.3; 2004 Jan. 2.49, 16.4; Jan. 17.36, 16.4; Jan. 21.40,
16.4; Jan. 30.32, 16.4; Feb. 5.32, 16.4.

Host galaxy info: vel = 203 km/s, 11.2 x 4.3, 9.3, I0;Sbrst HII

SN type info: II

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