Four states of the recurrent symbiotic nova V407 Cyg
V.F. Esipov
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, Russia
Search for more papers by this authorE.A. Kolotilov
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, Russia
Search for more papers by this authorG.V. Komissarova
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, Russia
Search for more papers by this authorV.I. Shenavrin
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, Russia
Search for more papers by this authorS.Yu. Shugarov
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, Russia
Astronomical Institute, Slovak Academy of Science, 059 60 Tatranska Lomnica, Slovakia
Search for more papers by this authorT.N. Tarasova
Astrophysical Observatory, Nauchnyi, Crimea, 98409, Ukraine
Search for more papers by this authorA.M. Tatarnikov
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, Russia
Search for more papers by this authorCorresponding Author
A.A. Tatarnikova
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, Russia
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, RussiaSearch for more papers by this authorV.F. Esipov
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, Russia
Search for more papers by this authorE.A. Kolotilov
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, Russia
Search for more papers by this authorG.V. Komissarova
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, Russia
Search for more papers by this authorV.I. Shenavrin
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, Russia
Search for more papers by this authorS.Yu. Shugarov
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, Russia
Astronomical Institute, Slovak Academy of Science, 059 60 Tatranska Lomnica, Slovakia
Search for more papers by this authorT.N. Tarasova
Astrophysical Observatory, Nauchnyi, Crimea, 98409, Ukraine
Search for more papers by this authorA.M. Tatarnikov
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, Russia
Search for more papers by this authorCorresponding Author
A.A. Tatarnikova
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, Russia
Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetskij Pr. 13, Moscow 119992, RussiaSearch for more papers by this authorAbstract
We analyze the results of our spectroscopic and photometric monitoring of V407 Cyg in 1984–2009. We show that the hot component of V407 Cyg can be in four different states: a passive state (the system looks as an ordinary, non-symbiotic Mira), a quiescent state (the system looks as a low-excitation classical symbiotic star), a Z And-type outburst, and an RS Oph-type outburst. (© 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
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