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IAUC 8843: 2007ca-2007ck

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                                                  Circular No. 8843
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://www.cfa.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


SUPERNOVAE 2007ca-2007ck
     Numerous supernovae have been discovered on unfiltered CCD
frames:  2007cd by K. Itagaki (cf. IAUC 8817; via S. Nakano);
2007ce by R. Quimby (cf. IAUC 8779); 2007cf and 2007ci by T.
Puckett (cf. IAUC 8834; 2007cf with W. McDonald, 2007ci with T.
Crowley); 2007ch by L. A. G. Monard (cf. IAUC 8814); 2007cj by
T.-H. Liou, T.-w. Chen et al. (cf. IAUC 8834); 2007ck by T. Boles
(cf. IAUC 8789); and the rest by W. Li via LOSS/KAIT (cf. IAUC
8829; 2007ca with R. Prasad; 2007cb, 2007cc, and 2007cg with P.
Thrasher).  Discovery observations:

SN      2007 UT       R.A.  (2000.0)  Decl.    Mag.     Offset
2007ca  Apr. 25.34   13 31 05.81  -15 06 06.6  16.7  25".1 E, 1".7 S
2007cb  Apr. 27.35   13 58 17.20  -23 22 20.7  16.8  0".9 E, 3".5 S
2007cc  Apr. 27.35   14 08 41.98  -21 35 48.4  15.9  1".2 E, 2".7 N
2007cd  Apr. 27.61   13 29 26.48  +11 00 44.8  17.5  9" E, 16" N
2007ce  May   4.14   12 10 17.96  +48 43 31.5  17.4     --
2007cf  May   8.31   15 23 07.66  + 8 31 45.5  17.9  3".3 E, 3".1 N
2007cg  May  11.34   13 25 33.58  -24 39 08.1  17.7  3".1 E, 0".7 N
2007ch  May  11.92   15 49 47.82  -29 23 13.7  17.2  23" W, 1" S
2007ci  May  15.12   11 45 45.85  +19 46 13.9  17.5  3".8 W, 12".4 S
2007cj  May   3.54    9 59 55.76  -29 37 03.3  15.9  1".1 E, 0".3 S
2007ck  May  19.04   18 23 05.59  +29 54 01.0  18.5  17".9 E, 4".2 S

Additional information is available on Electronic Telegrams:
2007ca in MCG -02-34-61, CBETs 945, 947 (type-Ia supernova,
discovered near maximum); 2007cb in ESO 510-G31, CBETs 949, 955
(type-Ia, discovered shortly past maximum); 2007cc in ESO 578-G26,
CBETs 949, 956 (type-Ia, discovered shortly past maximum); 2007cd
in NGC 5174, CBET 950; 2007ce, CBET 953 (type-Ic); 2007cf in MCG
+02-39-21, CBETs 954, 958 (type-Ia, discovered several days past
maximum); 2007cg in ESO 508-G75, CBETs 960, 962 (type-Ia,
discovered before maximum); 2007ch in NGC 6000, CBETs 961, 963
(type-II, discovered a couple of weeks past explosion); 2007ci in
NGC 3873, CBETs 966, 967 (subluminous type-Ia, discovered a couple
of days before maximum); 2007cj in IC 2531, CBETs 968, 969 (type-Ia,
discovered a week or two past maximum); 2007ck in MCG +05-43-16,
CBETs 970, 971 (type-II, discovered a few weeks past explosion).
A. Klotz writes that TAROT images of NGC 3873 taken at the Haute
Provence Observatory on May 15.06 UT show nothing at the position
of 2007ci (limiting mag 18.5).

                      (C) Copyright 2007 CBAT
2007 June 9                    (8843)            Daniel W. E. Green

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