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IAUC 7994: 2002gn, go, gp, gq, gr, gs, gt, gu, 2002gv; 2001ig

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                                                  Circular No. 7994
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)
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Phone 617-495-7440/7244/7444 (for emergency use only)


SUPERNOVAE 2002gn, go, gp, gq, gr, gs, gt, gu, 2002gv
     G. Miknaitis, University of Washington, reports the detection
by the Sloan Digital Sky Survey (SDSS) of nine supernovae in images
taken on Oct. 10.4 UT with the SDSS 2.5-m telescope at Apache Point
Observatory (APO).  The new objects were detected by subtraction
against images taken on 2001 Nov. 12 (limiting mag r = 22.5).  SDSS
r magnitudes and each object's offset from the center of its host
galaxy (SN 2002gq has no apparent host) are given below.  CCD
spectra taken by B. Leibundgut and J. Sollerman at the Very Large
Telescope on Oct. 11 (first five) and 12 (SNe 2002gs, 2002gt)
reveal the following supernova types, approximate time before (-)
or after (+) maximum light, and redshifts: SN 2002gn, Ia, +13 days,
0.044 (from Mgb and Na I D lines in the host spectrum); SN 2002go,
Ia, -2 days, 0.236; SN 2002gp, Ia, +9 days, 0.18; SN 2002gq,
peculiar II, 0.20 (wide emissions of H-alpha and H-beta and no
P-Cyg lines); SN 2002gr, Ia, +2 weeks, 0.09 (from galaxy emission
lines); SN 2002gs, Ia, +2 weeks, 0.33; SN 2002gt, Ia, +10 days,
0.37.  SNe 2002gu and 2002gv were confirmed by CCD imaging carried
out by Miknaitis and A. Miceli at the APO 3.5-m telescope on Oct.
12.

SN       2002 UT       R.A. (2000.0) Decl.      r        Offset
2002gn   Oct. 10.4   1 56 54.56  - 1 06 49.0   19.8   1".8 E, 4".0 N
2002go        10.4   2 45 43.16  - 0 37 44.7   21.3   3".7 E, 2".7 N
2002gp        10.4   1 52 36.76  - 0 13 31.5   21.2   2".4 W, 9".5 N
2002gq        10.4   2 10 29.69  + 0 32 16.9   21.0        --
2002gr        10.4   2 27 13.22  + 0 53 57.8   21.8   3".3 E, 1".8 N
2002gs        10.4   1 39 56.44  - 0 45 01.2   21.4   1".0 W, 1".0 N
2002gt        10.4   2 40 29.78  - 0 22 46.0   21.7   2".0 W, 2".0 S
2002gu        10.4   2 31 48.56  - 1 09 19.7   20.9   4".0 E, 6".5 N
2002gv        10.4   1 52 17.48  + 0 12 17.3   20.6   2".6 W, 2".0 S


SUPERNOVA 2001ig IN NGC 7424
     P. Chandra and A. Ray, Tata Institute of Fundamental Research,
Mumbai; and S. Bhatnagar, National Radio Astronomy Observatory,
Socorro, report the detection of SN 2001ig at 1396.75 MHz (flux
density 11.7 +/- 1.5 mJy) with the Giant Meterwave Radio Telescope
(GMRT) on Sept. 25.8 UT.  SN 2001ig is 21".3 away from a radio
source of flux density 38.4 +/- 1.6 mJy.  In an earlier GMRT
observation on 2001 Dec. 31, the 2-sigma upper limit of flux
density of the supernova in the 610-MHz band was 2 mJy.

                      (C) Copyright 2002 CBAT
2002 October 16                (7994)            Daniel W. E. Green

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