[IAUC] CBET 1589: 20081128 : SUPERNOVA 2008hp

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                                                  Electronic Telegram No. 1589
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 2008hp
     Further to CBET 1581, A. J. Drake, R. Williams, A. Mahabal, S. G.
Djorgovski, and M. J. Graham, California Institute of Technology; M. Catelan,
Pontificia Universidad Catolica; E. C. Beshore, S. M. Larson, and A. Boattini,
Lunar and Planetary Laboratory, University of Arizona; and E. Christensen,
Gemini Observatory, report the Catalina Real-time Transient Survey (CRTS)
discovery of apparent supernovae in unfiltered Catalina Sky Suvey (CSS) images:

 SN       2008 UT       R.A. (2000.0) Decl.      Mag.      Offset
 2008hp   Nov. 22.43   9 43 26.22  +25 10 21.9   16.4    1" north

The host galaxy, SDSS J094326.19+251020.7, has Gunn magnitudes u = 23.2, g =
22.7, r = 22.8, i = 22.7, z = 23.6.  Additional magnitudes for 2008hp:  Oct.
28.52 UT, [20.0 (CSS); Nov. 24.34, g = 16.7, r = 16.8, i = 17.4 (Palomar 1.52-m
reflector + Gunn filters).
     E. Y. Hsiao, M. L. Graham, C. J. Pritchet, A. Parker, S. Sadavoy, and D.
Balam, Department of Physics and Astronomy, University of Victoria, report
that a spectrogram (range 390-703 nm, resolution 0.3 nm) of 2008hp, obtained
on Nov. 26.44 UT with the 1.82-m Plaskett Telescope of the National Research
Council of Canada, shows it to be a type-Ia supernova about 11 days past
maximum light.  Cross-correlation with a library of supernova spectra using
the "Supernova Identification" code (Blondin and Tonry 2007, Ap.J. 666, 1024)
indicates that 2008hp is most similar to the type-Ia supernova 1994ae at 11
days past maximum light.  The redshift derived from this fit is 0.027.


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                         (C) Copyright 2008 CBAT
2008 November 28                 (CBET 1589)              Daniel W. E. Green