[IAUC] CBET 2514: 20101027 : SUPERNOVA 2010ja IN NGC 2513

[quai en eps.harvard.edu]

                                                  Electronic Telegram No. 2514
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 2010ja IN NGC 2513
     G. Pignata, and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy,
R. Antezana, L. Gonzalez, R. Cartier, and F. Forster, Universidad de Chile; P.
Gonzalez, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan
University; G. Folatelli, Institute for the Physics and Mathematics of the
Universe (IPMU), University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip,
A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North
Carolina at Chapel Hill, on behalf of the CHASE project, report the discovery
of an apparent supernova (mag approximately 17.9) on an unfiltered image taken
on Oct. 15.35 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo.
The new object is located at R.A. = 8h02m28s.39 +/- 0".2, Decl. = +9o23'40".9
+/- 0".2 (equinox 2000.0), which is about 55" east and 68" south of the center
of the galaxy NGC 2513; nothing is visible at this position on stacked
archival images taken between Jan. 8.13 and Mar. 19.04 (limiting mag 19.5),
but 2010ja is visible at mag approximately 18.0 on images taken on Oct. 16.34
and 17.33.

     N. Morrell, Las Campanas Observatory; and G. Folatelli, IPMU, University
of Tokyo, reports on spectroscopic observations (range 330-950 nm) of 2010ja,
obtained on Oct. 22.4 UT with the Boller and Chivens spectrograph attached to
the 2.5-m du Pont telescope at Las Campanas Observatory.  The low-signal-noise
spectrum of 2010ja is that of an evolved type-Ia supernova; cross-correlation
with a library of supernova using SNID (Blondin and Tonry 2007, Ap.J. 666,
1024) shows 2010? to be most similar to SN 1991bg at about three months after
maximum light.


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                         (C) Copyright 2010 CBAT
2010 October 27                  (CBET 2514)              Daniel W. E. Green