Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 8117: 2003dm, 2003dn, 2003do, 2003dp, 2003dq, 2003dr; 2003cx, 2003dc

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 8116 SEARCH Read IAUC 8118

View IAUC 8117 in .dvi or .ps format.
IAUC number 

                                                  Circular No. 8117
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 2003dm, 2003dn, 2003do, 2003dp, 2003dq, 2003dr
     Several additional supernovae found on unfiltered CCD images
have been reported -- SN 2003dr in NGC 5714 independently by T.
Puckett and D. Toth (cf. IAUC 8045) and by M. Schwartz and P. R.
Holvorcem (LOTOSS/Tenagra II; cf. IAUC 8111), and the rest by W. M.
Wood-Vasey, G. Aldering, P. Nugent, and A. Kulkarni (NEAT; cf. IAUC
8115).  The tabulated data for SN 2003dr below are from Puckett.

SN      2003 UT      R.A.  (2000.0)  Decl.    Mag.      Offset
2003dm  Mar. 22.20  11 31 38.15  +25 34 14.3  19.2   2" W, 1" N
2003dn  Apr.  7.30  11 20 08.03  +25 36 48.7  20.0   6" S
2003do  Apr.  8.29  13 03 29.37  +27 19 11.1  19.9   1".4 E, 1".3 S
2003dp  Apr.  8.36  13 13 24.23  +27 56 09.3  20.0   3".1 W
2003dq  Apr. 10.15  11 04 45.44  +15 26 49.4  18.9   0".3 E, 1".9 S
2003dr  Apr. 13.18  14 38 11.13  +46 38 03.4  18.0   3".7 W, 13".9 S

Additional approximate magnitudes from the respective observers:
2003dm, 2002 Mar. 31.38, [20.9; 2003 Jan. 19.54, [20.5; Apr. 7.33,
19.7.  2003dn, 2002 Mar. 31.37, [21.0; 2003 Feb. 21.50, [20.7; Apr.
10.15, 20.0.  2003do, 2002 Apr. 9.21, [21.6; 20.25, [20.9; 2003 Mar.
22.40, 20.2; Apr. 11.32, 19.9.  2003dp, 2002 May 3.21, [21.4; 2003
Mar. 22.40, [21.1; Apr. 11.32, 20.0.  2003dq, 2002 Apr. 2.27, [21.8;
2003 Mar. 24.16, [21.5; 25.24, [21.3; Apr. 9.42, 19.0.  SN 2003dr,
1997 July 1, [21.0 (Palomar Sky Survey, via Puckett); 2003 Mar. 24,
[20.5 (Puckett); Apr. 8.3, [18.5 (Holvorcem); 12.4, 17.9
(Holvorcem); 14.16, 18.0 (Puckett); 14.4, 17.9 (Holvorcem).


SUPERNOVAE 2003cx AND 2003dc
     M. Hamuy, Carnegie Observatories, reports that a spectrum
(range 370-900 nm) of SN 2003cx (cf. IAUC 8105), obtained on Apr.
10.39 UT with the Las Campanas Observatory Clay 6.5-m telescope (+
LDSS-2), shows it to be a normal type-II supernova with Balmer
lines exhibiting P-Cyg profiles.  The expansion velocity of -10000
km/s, derived from the minimum of H_alpha (based on a redshift of
0.037, derived for the host galaxy from superimposed narrow
emission Balmer lines), and the relatively blue continuum suggest
that SN 2003cx is about 2-3 weeks old.  A spectrum of SN 2003dc
(cf. IAUC 8111), taken on Apr. 10.37, shows it to be a type-Ia
supernova near maximum light.  The minimum of the Si II 635.5-nm
line yields an expansion velocity of -10060 km/s (based on a
redshift of 0.067, derived for the host galaxy from superimposed
narrow H_alpha emission).

                      (C) Copyright 2003 CBAT
2003 April 14                  (8117)            Daniel W. E. Green

Read IAUC 8116 SEARCH Read IAUC 8118

View IAUC 8117 in .dvi or .ps format.

Our Web policy. Index to the CBAT/MPC/ICQ pages.

Valid HTML 4.01!