6-m telescope Spectroscopic follow-up observation of the bright OT MASTER081443.89+125459.7

ATel #3730; Karachentsev I. D., Fatkhullin T. A. (Special Astrophysical Observatory, Russia), Krushinsky V. V. (Ural State University), Sokolovsky K. V. (ASC Lebedev/SAI MSU), Tyurina N. V. (Moscow State University/ SAI)
on 2 Nov 2011; 08:04 UT
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Credential Certification: Vladimir Lipunov (lipunov2007@gmail.com)

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We report the result of the follow-up spectroscopic observations of the recent bright OT MASTER081443.89+125459.7 (Tyurina et al., ATel #3715).

Spectrum of this objects was obtained by T.A.Fatkhullin and I.D.Karachentsev with 6-m BTA SAO RAS (+ SCORPIO/LS) :

blue part: range 4100-5800AA, resolution FWHM=5A, 28.097 Oct. UT red part: range 5800-7500AA, resolution FWHM=5A, 29.138 Oct. UT

These observations suggest that the object can be type dwarf Nova ( WZ Sge ) .

The amplitude of optical ( V ) flash (7 magnitudes) specifies in this subtype too.

Spectrum is available at http://observ.pereplet.ru/images/OT111024/spectrum.png

We detected the Balmer lines in absoption in the blue and red spectrum part (as was previously reported by Magill et al. , ATel #3724) .

Our results are the following:

Red:
Halpha - emission and absorption
HeI 5876 - absorption

Blue:
HeI 5016, 4920, 4470 - absorption
Hbeta - absorption
HeII 4685 - emission and absorption
Hgamma - absorption
Hdelta - absorption