[IAUC] CBET 460: 20060404 : SUPERNOVA 2006bj

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                                                  Electronic Telegram No. 460
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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CBAT en CFA.HARVARD.EDU (science)
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SUPERNOVA 2006bj
     Further to IAUC 8622, R. Quimby, University of Texas, reports the
discovery of an apparent supernova in unfiltered CCD images taken with
the 0.45-m ROTSE-IIIb telescope at the McDonald Observatory on Mar.
26.19 (at mag about 17.3) and Apr. 2.17 UT (mag about 17.2).  The new
object is located at R.A. = 12h22m19s.16, Decl. = +7o37'25".3 (equinox
2000.0; uncertainty +/- 0".5), which is 1".1 east and 1".1 north of
the center of the apparent host galaxy.  The supernova was found by
subtracting a co-addition of images taken between 2004 Dec. 15 and 2005
May 9 (limiting mag about 19.0).  A spectrum (range 420-890 nm), obtained
on Mar. 3.34 with the 9.2-m Hobby-Eberly Telescope (+ Marcario
Low-Resolution Spectrograph) by S. C. Odewahn and F. Deglman, shows
2006bj to be a young type-II supernova.  The spectrum consists of a blue
continuum mostly devoid of features except for (most notably) a weak,
broad absorption near 493 nm.  Using narrow emission lines superimposed
from the host galaxy, a redshift of z = 0.038 is calculated.


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                         (C) Copyright 2006 CBAT
2006 April 4                     (CBET 460)               Daniel W. E. Green