Central Bureau for Astronomical Telegrams
IAUC 8058: 2003B, 2003Q, 2003R, 2003S,, 2003T
The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).
Read IAUC 8059
.dvi or
.ps format.
Circular No. 8058
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)
SUPERNOVAE 2003B, 2003Q, 2003R, 2003S, AND 2003T
Several additional supernova discoveries on unfiltered CCD
images have been reported, with the tabulated magnitudes below all
stated to be approximate. SNe 2003Q and 2003R were reported by D.
Poznanski, A. Gal-Yam, K. Sharon, and D. Maoz, Tel Aviv University;
and B. T. Jannuzi, National Optical Astronomy Observatory (NOAO),
from images of the NOAO Deep Wide Field Survey field J0205-0455
obtained by Jannuzi with the 4-m Mayall telescope (+ Mosaic Camera)
at Kitt Peak. SNe 2003S and 2003T were found via LOTOSS (cf. IAUC
7906) -- the former reported by M. Papenkova and W. Li (KAIT
discovery) and the latter by M. Schwartz and Li (Tenagra II
discovery).
SN 2003 UT R.A. (2000.0) Decl. Mag. Offset
2003Q Jan. 2 2 05 47.55 - 4 52 48.0 20 --
2003R Jan. 2 2 05 11.27 - 4 42 30.0 22 --
2003S Jan. 24.6 13 41 19.49 +55 40 36.5 18.0 1".1 W, 3".3 S
2003T Jan. 25.4 9 14 11.06 +16 44 48.0 18.1 25".0 W, 14".9 N
Additional magnitudes: SN 2003Q, 2002 Oct. 11, [26: (Jannuzi).
SN 2003R, 2002 Oct. 11, [26: (Jannuzi). SN 2003S in MCG +09-22-94,
2002 June 14.3 UT, [19.0: (KAIT); 2003 Jan. 26.5, 18.0: (Tenagra
II). SN 2003T in UGC 4864, Jan. 5.4, [19.0: (KAIT); 27.4, 17.9:
(Tenagra II).
A. V. Filippenko and R. Chornock, University of California,
Berkeley, report that inspection of CCD spectra (range 310-1000
nm), obtained on Jan. 7 UT with the Keck I 10-m telescope (+ LRIS),
shows that SN 2003Q is of type Ia, probably within a week of
maximum brightness; the approximate redshift is 0.21, based on a
comparison with the spectrum of SN 1989B. SN 2003R is also of type
Ia, with a redshift of 0.668 (measured from narrow [O II]
emission), but the S/N ratio is fairly low.
T. Matheson, P. Challis, and R. Kirshner, Harvard-Smithsonian
Center for Astrophysics, report that a spectrum (range 370-750 nm)
of SN 2003S, obtained by P. Berlind on Jan. 27.48 UT with the F. L.
Whipple Observatory 1.5-m telescope (+ FAST spectrograph), shows it
to be a type-Ia supernova near maximum. Narrow emission lines
superposed on the spectrum of the supernova indicate a recession
velocity of 11700 km/s for the host galaxy. Using this value, the
supernova expansion velocity is about 10600 km/s for Si II (rest
635.5 nm).
Prediscovery unfiltered CCD images taken on 2002 Dec. 28.09 UT
by M. Motta at Center Harbor, NH, show SN 2003B at mag 16.4.
(C) Copyright 2003 CBAT
2003 January 27 (8058) Daniel W. E. Green
Read IAUC 8059
.dvi or
.ps format.
Our Web policy. Index to the CBAT/MPC/ICQ pages.
