[IAUC] CBET 2384: 20100720 : SUPERNOVA 2010gi IN IC 4660

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Mar Jul 20 11:41:09 ART 2010


                                                  Electronic Telegram No. 2384
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  Daniel W. E. Green; Room 209; Dept. of Earth and Planetary
 Sciences; Harvard University; 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbat en iau.org; cbatiau en eps.harvard.edu
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2010gi IN IC 4660
     M. Yamanaka, Hiroshima University; A. Arai, Kyoto Sangyo University;
and K. Sakimoto, T. Okushima, K. S. Kawabata, Hiroshima University, report
that they obtained low-resolution optical spectra of 2010gi (cf. CBET 2376)
on July 19.7 UT at Higashi-Hiroshima Observatory (resolution, R, of 400),
Hiroshima University, and at Koyama Astronomical Observatory (R = 500), Kyoto
Sangyo University.  The spectra have broad absorption features at 540-580 and
590-620 nm, showing some resemblance to that of the type-IIb supernova 1993J
at a week before maximum light.  If it is assumed that the features are He I
587.9-nm and H-alpha, the blue-shifts of their line centers correspond to
about -14000 km/s and -23000 km/s, respectively.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2010 CBAT
2010 July 20                     (CBET 2384)              Daniel W. E. Green



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