[IAUC] CBET 2527: 20101103 : SUPERNOVA 2010jf

[quai en eps.harvard.edu]

                                                  Electronic Telegram No. 2527
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  Daniel W. E. Green; Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau en eps.harvard.edu (alternate cbat en iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


SUPERNOVA 2010jf
     Denis Vida and Filip Novoselnik, on behalf of the "La Sagra Sky Survey"
(LSSS) Supernova Search Team (which also includes Ivica Skokic, David
Gostinski, Robert Gregic, Salvador Sanchez, Jaime Nomen, Reiner Stoss, Bill
Yeung, Juan Rodriguez, and Miguel Hurtado), report the discovery of an
apparent supernova (magnitude 17.7) on three CCD images (limiting mag about
20.0) taken on Oct. 20.008, 20.02, and 20.033 UT with a 0.45-m telescope.
The new object is located at R.A. = 3h40m43s.47, Decl = +1d03'34".0 (equinox
2000.0), which is 14".0 west and 10".3 north of the nucleus of the presumed
host galaxy, PGC 1183175.  Additional approximate magnitudes for 2010jf:
1990 Oct. 21.377, [22 (Digitized Sky Survey, red plate); 2010 Oct. 24.763,
18.2 (Joseph Brimacombe, Cairns, Australia, unfiltered CCD; bright moonlight).
The LSSS image from Oct. 20 has been posted (with the red DSS image on the
right) at website URL http://img261.imageshack.us/img261/9140/image000z.png.
Brimacombe's image is at http://www.flickr.com/photos/43846774@N02/5111468047/.

     D. Milisavljevic, R. Fesen, and J. Parrent, Dartmouth College, report on
a low-resolution spectrum (range 450-750 nm) of 2010jf obtained at the MDM
Observatory using the 2.4-m Hiltner telescope (+ MKIII) on Nov. 2.5 UT.
Comparison with a library of supernova spectra using the "Supernova
Identification" tool (SNID; Blondin and Tonry 2007, Ap.J., 666, 1024) shows
that 2010jf appears to be a spectroscopically peculiar, sub-luminous type-Ia
supernova around maximum light.  The spectrum closely resembles that of SN
1986G at one day past maximum.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
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                         (C) Copyright 2010 CBAT
2010 November 3                  (CBET 2527)              Daniel W. E. Green