Central Bureau for Astronomical Telegrams

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IAUC 8038: 2002ka; 2002kb, 2002kc, 2002kd, 2002ke

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                                                  Circular No. 8038
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://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


SUPERNOVA 2002ka
     B. F. Madore, Carnegie Observatories, reports the discovery of
a supernova on a spectrogram (range 400-800 nm) taken Dec. 28.256
UT with the Baade 6.5-m telescope, showing the object to be of type
Ia, approximately 26 days past maximum light.  The telescope-
pointing position was R.A. = 9h30m42s.0, Decl. = -14o47'04"
(equinox 2000.0).  Following requests by the Central Bureau,
additional information has been received from R. Kushida
(Yatsugatake South Base Observatory; via S. Nakano, Sumoto, Japan)
and from W. Li (University of California, Berkeley).  An image
taken by Kushida (measured by Y. Kushida) on Dec. 28.708 yields mag
17.5 and the following precise position:  R.A. = 9h30m41s.62, Decl.
= -14o46'55".3, which is 2".5 west and and 1".7 north of the center
of a small galaxy.  SN 2002ka is also present on KAIT images (cf.
IAUC 7906) at position end figures 41s.64, 55".2, or 2".4 west and
2".0 north of the diffuse nucleus of the host galaxy; Li also
provides the following magnitudes for the supernova:  Apr. 8.3,
[19:; Nov. 19.5, 14.8; 30.5, 15.0; Dec. 11.5, 15.3.


SUPERNOVAE 2002kb, 2002kc, 2002kd, 2002ke
     Further to IAUC 7981, L. Strolger, Space Telescope Science
Institute, on behalf of the GOODS Treasury Team (+ P. Garnavich, C.
Kretchmer, and E. Taylor) and the Hubble Higher-z Supernova Team,
reports the discovery of four new apparent supernovae on images of
the Chandra Deep Field South, each detected by subtracting from ACS
images of Dec. 19-22 those taken on July 31-Aug. 4, Sept. 19-22,
and Oct. 31-Nov. 3.  SN 2002kb was not detected in the Dec. 19-22
images, but was clearly visible earlier; the remaining objects were
detected independently in each of four separate z-band (F850lp)
exposures, as well as in the two i-band (F775W) and the two v-band
(F606W) exposures.  The offsets given below are from the centers of
the nearest visible galaxies.  Further z-band magnitudes:  SN
2002kb, Sept. 22.16 UT, 24.1; Oct. 30.82, 24.2; Dec. 20.10, [26.5.
2002kc, Nov. 3.41, [26.  SN 2002kd, Nov. 1.00, [28.  SN 2002ke,
Sept. 20.30, [27.5.

SN      2002 UT       R.A.  (2000.0)  Decl.     z       Offset
2002kb  July 31.74   3 32 42.42  -27 50 25.4  24.2   0".01 W, 0".20 S
2002kc  Dec. 21.50   3 32 34.72  -27 39 58.3  21.7   0".28 W, 0".85 S
2002kd  Dec. 21.64   3 32 22.34  -27 44 26.9  23.8   3".13 W, 0".98 S
2002ke  Dec. 21.90   3 31 58.77  -27 45 00.7  25.7   1".15 E, 0".26 S

                      (C) Copyright 2002 CBAT
2002 December 28               (8038)            Daniel W. E. Green

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