Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 8106: 2003cy, 2003cz; 2003bv, 2003cq; C/2002 W6, C/2002 W7

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 8105 SEARCH Read IAUC 8107

View IAUC 8106 in .dvi or .ps format.
IAUC number 

                                                  Circular No. 8106
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 2003cy AND 2003cz
     Further to IAUC 8105, W. M. Wood-Vasey, G. Aldering, P. Nugent,
and S. Brar report the discovery of two apparent supernovae:

SN      2003 UT      R.A.  (2000.0)  Decl.    Mag.      Offset
2003cy  Mar. 30.14  10 46 04.27  +27 20 57.2  19.0   4".4 E, 3".3 S
2003cz  Apr.  2.14  12 05 53.57  +33 27 13.0  20.2   6".8 E, 1".2 N

Additional magnitudes:  SN 2003cy, Mar. 22.14, [21.1; Apr. 2.14,
18.5.  SN 2003cz, 2002 Apr. 9.14, [21.4; 20.14, [21.0; 2003 Mar.
21.46, 19.8.


SUPERNOVAE 2003bv AND 2003cq
     Further to IAUC 8105, T. Matheson, P. Challis, and R. Kirshner
report that a spectrum of SN 2003cq (cf. IAUC 8103), obtained by M.
Calkins on Apr. 3.28 UT with the 1.5-m telescope, shows it to be a
type-Ia supernova about a week before maximum.  Adopting the NASA/
IPAC Extragalactic Database recession velocity of 9978 km/s for the
host galaxy, the supernova expansion velocity is 13200 km/s for Si
II (rest 635.5 nm).  The spectral-feature age of the supernova is 7
+/- 2 days before maximum light.  A spectrum (range 370-750 nm) of
SN 2003bv (cf. IAUC 8093), obtained by L. Macri on Mar. 25.17,
shows it to be a type-II supernova.  The spectrum consists of a
blue continuum, with broad hydrogen emission lines.  The absorption
component of a P-Cyg profile is not evident, but cannot be excluded
due to the poor signal-to-noise ratio of the spectrum.


COMETS C/2002 W6 AND C/2002 W7 (SOHO)
     Further to IAUC 8103, D. Hammer provides measurements for two
additional Kreutz sungrazing comets found on SOHO C2 website images
by R. Matson (C/2002 W6) and D. Evans (C/2002 W7).  C/2002 W7 was
also visible in the C3 coronagraph.  Reduced astrometry and orbital
elements by B. G. Marsden appear on MPEC 2003-G07.

    Comet         2002 UT           R.A. (2000) Decl.
    C/2002 W6     Nov. 20.351      15 40.9   -21 17
    C/2002 W7          21.821      15 49.0   -22 29

                      (C) Copyright 2003 CBAT
2003 April 3                   (8106)            Daniel W. E. Green

Read IAUC 8105 SEARCH Read IAUC 8107

View IAUC 8106 in .dvi or .ps format.

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

Valid HTML 4.01!