[IAUC] CBET 2566: 20101205 : SUPERNOVAE 2010kj AND 2010kk

[quai en eps.harvard.edu]

                                                  Electronic Telegram No. 2566
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)
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Prepared using the Tamkin Foundation Computer Network


SUPERNOVAE 2010kj AND 2010kk
     T. A. Fatkhullin, V. N. Komarova, A. S. Moskvitin, V. V. Sokolov, and
T. N. Sokolova, Special Astrophysical Observatory (SAO), Russian Academy of
Sciences; and A. J. Drake, S. G. Djorgovski, A. Mahabal, M. J. Graham, and
R. Williams, California Institute of Technology, report the discovery of
two supernovae in the course of the Mt. Lemmon Survey.

 SN       2010 UT       R.A. (2000.0) Decl.      Mag.      Offset
 2010kj   Nov. 2.32    2 48 37.15  + 7 24 10.8   18.5    1" E, 1" S
 2010kk   Nov. 8.36    3 53 23.23  + 9 54 33.3   20.2    0".5 W

Catalina Sky Survey (CSS) magnitudes for 2010kj:  Oct. 11.36 UT, [20.1; 28.37,
19.1; Nov. 17.16, 18.0; 28.31, 18.9.  Nothing was visible at the position of
2010kk on a CSS image from 2009 Nov. 22.36 (limiting mag 21.2).  Spectroscopy
was obtained of both objects with the SAO's BTA 6-m reflector (+ SCORPIO;
range 380-790 nm) on Nov. 15 UT.  Cross-correlation of the spectra with a
library of supernova spectra using the "Supernova Identification" code (SNID;
Blondin and Tonry 2007, Ap.J. 666, 1024) indicates that both are normal type-
Ia supernovae.  SN 2010kj is similar to SN 1995D at around four days after
maximum with redshift 0.064 +/- 0.002 (according to broad lines in the
spectrum), and 2010kk is similar to SN 1994ae around six days after maximum
at redshift 0.213 +/- 0.005.


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                         (C) Copyright 2010 CBAT
2010 December 5                  (CBET 2566)              Daniel W. E. Green