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IAUC 8875: 2007gw-2007kd; 2007ke, 2007kf, 2007kg, 2007kh

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IAUC number

                                                  Circular No. 8875
Central Bureau for Astronomical Telegrams
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
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SUPERNOVAE 2007gw-2007kd
     Further to IAUC 8874, published data for objects not yet
spectroscopically confirmed appear on the specified CBETs:  2007gw
in NGC 4161, CBET 1042 (Corrigendum to CBET 1042:  2006dk was a
type-II supernova); 2007ig in MCG -01-5-2, CBET 1060; 2007iq in UGC
3416, CBET 1064; 2007iw in ESO 325-43, CBET 1071; 2007kc in UGC
8400, CBET 1082; 2007kd in MCG +6-21-36, CBET 1083.  The spectral
type of 2007ir in UGC 2033 is unknown (cf. CBETs 1067, 1077).  Data
for type-Ia supernovae:  2007hj in NGC 7461, CBET 1048; 2007hu in
NGC 6261, CBETs 1056, 1058; 2007if, CBET 1059; 2007is in UGC 10553,
CBETs 1067, 1075.  SN 2007hb in NGC 819 is a type-Ib/c supernova
(cf. CBETs 1043, 1066, 1067).  Data for type-II supernovae:  2007hv
in UGC 2858 (CBETs 1056 and 1058); 2007il in IC 1704, CBET 1062;
2007it in NGC 5530, CBETs 1065, 1068; 2007iv in UGC 12917, CBETs
1070, 1072.  Prediscovery V magnitudes of 2007it from G. Pojmanski
(Warsaw University Astronomical Observatory) from All Sky Automated
Survey images, somewhat affected by light from the galactic core:
Sept. 4.008 UT, [14; 5.994, 12.4; 6.014, 12.0; 8.036, 12.4; 11.027,
12.1; 12.983, 12.3.  SNe 2007gx, 2007hl, and 2007hn are also of
type Ib or Ic; 2007gy, 2007gz, 2007hc, 2007hi, 2007hm, 2007hr,
2007hs, 2007hw, 2007ib, 2007iu, 2007iz, 2007ja, 2007jf, 2007jm, and
2007jn are of also of type II; the remainder are type-Ia supernovae.
SN 2007iu is 10".3 west and 1".3 north of the center of the
apparent host galaxy (which is not a star, as stated on CBET 1069).
Objects questioned as possible type-Ia supernovae include 2007ie,
2007ii, 2007jc, and 2007jv.  Objects questioned as possible type-Ib
or -Ic supernovae include 2007jc, 2007ju, and 2007jy.

SUPERNOVAE 2007ke, 2007kf, 2007kg, 2007kh
     Four additional apparent supernovae have been found on
unfiltered CCD images:  2007ke in NGC 1129 by J. Chu and W. Li
(LOSS/KAIT; details on CBET 1084); 2007kf by W. Kloehr (cf. IAUC
8851; details on CBET 1085); 2007kg by H. Mikuz (cf. IAUC 8834;
details on CBET 1086); and type-Ia SN 2007kh by F. Yuan et al.
(details on CBET 1089).  Discovery observations tabulated for those
objects reported to be around mag 17:

SN       2007 UT       R.A.  (2000.0)  Decl.    Mag.     Offset
2007kf   Sep. 22.93   17 31 31.76  +69 18 40.1  17.0   2".2 E, 4".9 S
2007kg   Sep. 22.90   23 58 37.43  +60 59 06.7  17.1   7" E, 6" N

                      (C) Copyright 2007 CBAT
2007 September 27              (8875)            Daniel W. E. Green

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