[IAUC] CBET 4013: 20141110 : DWARF NOVA IN GEMINI

[quai en eps.harvard.edu]

                                                  Electronic Telegram No. 4013
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


DWARF NOVA IN GEMINI
     T. Morokuma, Institute of Astronomy, University of Tokyo; N. Tominaga,
E. Matsumoto, T. Shibata, and M. Yamanaka, Konan University; and M. Tanaka,
National Astronomical Observatory of Japan -- on behalf of the Kiso Supernova
Survey (KISS) collaboration -- report the discovery of a new transient object
(mag 16.6) on a g-band CCD image (limiting mag 19.9) taken on Oct. 27.72 UT
with the Kiso Wide Field Camera (field-of-view 2.1 deg x 2.1 deg) on the
1.05-m Schmidt telescope at the Kiso Observatory.  The new object is located
at R.A. = 7h55m40s.62, Decl. = +26d46'18".4 (equinox 2000.0), which is the
same position as a blue object in the Sloan Digital Sky Survey (SDSS
J075540.64+264618.6).
     T. Nakaoka, M. Uemura, K. Kawaguchi, Y. Kanda, K. S. Kawabata, K.
Takaki, and M. Kawabata, Hiroshima University; and M. Yamanaka, Konan
University -- on behalf of the KISS collaboration -- report that they obtained
a low-resolution optical spectrum on Oct. 28.8 UT with the 1.5-m Kanata
telescope (+ HOWPol) at the Higashi-Hiroshima Observatory.  The spectrum shows
a blue continuum and prominent emission lines in Balmer series.  The FWHM and
equivalent widths of the H-alpha, H-beta, and H-gamma emission lines are about
1500 km/s and 4.8 nm, 2100 km/s and 5.8 nm, and 1600 km/s and 3.3 nm,
respectively.  Other emission lines of He II 468.6-nm, and He I 667.8-,
587.6-, and 447.1-nm, are also confirmed.  These suggest that the object would
be classified as a dwarf nova.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2014 CBAT
2014 November 10                 (CBET 4013)              Daniel W. E. Green