Electronic Telegram No. 2620
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@eps.harvard.edu (alternate cbat@iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


SUPERNOVA 2010lr
     J. L. Prieto, Carnegie Observatories, reports that a spectrum (range
380-920 nm; resolution 0.8 nm) of 2010lr (cf. CBET 2614), obtained on Dec.
31.1 UT with WFCCD mounted on the du Pont 2.5-m telescope at Las Campanas
Observatory, shows it to be a normal type-Ia supernova.  Cross-correlation
with a library of supernova spectra using SNID (Blondin and Tonry 2007,
Ap.J. 666, 1024) shows that that 2010lr is most similar to SN 1998bu at 11
days after maximum light.  After correcting for the recession velocity of
its host galaxy, 2MASX J00023401-3044061, (+18634 km/s; from the 6dF
Galaxy Survey), a blueshift of the Si II (rest 635.5 nm) line is measured
to be 10400 km/s.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2011 CBAT
2011 January 4                   (CBET 2620)              Daniel W. E. Green