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IAUC 8278: V445 Pup; C/2003 B2, 2003 C2, 2003 C3, 2003 C4,, 2003 C5; 2004B

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IAUC number

                                                  Circular No. 8278
Central Bureau for Astronomical Telegrams
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)

     D. K. Lynch, R. J. Rudy, S. Mazuk, and C. C. Venturini,
Aerospace Corporation; R. C. Puetter, University of California at
San Diego; and R. B. Perry, Langley Research Center, NASA, report
0.5-2.5-micron spectroscopy of V445 Pup on Jan. 14 and 16 UT using
the Aerospace Corporation's Near-Infrared Imaging Spectrograph on
the Lick 3-m telescope.  The object has faded to fainter than mag J
= 18 and could not be detected spectroscopically in the visible.
In the infrared, only the He-I 1.0830- and 2.0581-micron lines were
seen, both showing doubled profiles, as though a bipolar outflow is
taking place.  Notably absent were He II or coronal lines,
suggesting that the ionizing source is not hot enough to produce
significant He II or the more highly ionized states associated with
the coronal features.  The very red continuum detected longward of
1.5 microns appears to be produced by emission from hot dust and
affected by reddening.  Additional magnitudes:  H = 16.7 +/- 0.2,
K_s [2.16-micron] = 13.8 +/- 0.2.  In view of this very unusual
behavior, further monitoring is recommended.

COMETS C/2003 B2, 2003 C2, 2003 C3, 2003 C4, AND 2003 C5 (SOHO)
     Further to IAUC 8276, K. Battams reports measures of
additional Kreutz comets found on SOHO C3 website images by D.
Evans (C/2003 C2, which was also visible in C2-coronagraph images),
R. Kracht (C/2003 C3), and J. Sachs (C/2003 C4 and C/2003 C5).
Reduced positions and orbital elements by B. G. Marsden appear on
MPEC 2004-B34.
     Corrigendum.  On IAUC 8276, the discovery date for C/2003 B2
*should read*  Jan. 18.821.

      Comet          2003 UT           R.A. (2000.0) Decl.
      C/2003 C2      Feb.  8.433       21 57.3      -17 29
      C/2003 C3           10.613       21 51.5      -15 30
      C/2003 C4           13.929       22 05.6      -14 16
      C/2003 C5           15.971       22 21.0      -14 19

     T. Matheson, P. Challis, and R. Kirshner, Harvard-Smithsonian
Center for Astrophysics, report that a spectrum (range 370-750 nm)
of SN 2004B (cf. IAUC 8268), obtained by P. Berlind on Jan. 28.16
UT with the F. L. Whipple Observatory 1.5-m telescope (+ FAST
spectrograph), shows it to be a type-Ia supernova several weeks
past maximum.

                      (C) Copyright 2004 CBAT
2004 January 29                (8278)            Daniel W. E. Green

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