Photometric and spectroscopic evolution of the symbiotic nova V1016 Cygni after its outburstстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:We have constructed the light curves of the symbiotic nova V1016 Cyg for the period 1971-2007 in a homogeneous photometric system close to UBV using our observations with the Zeiss-600 SAI telescope. Based on the observational data obtained with the 125-cm SAI telescope in 2000-2007, we have performed absolute spectrophotometry of the star in the range lambda 3700-9300 angstrom. The derived line intensities are compared with the data of other authors in the preceding years (1965-1988). The behavior of nebular lines showed the variations in electron density and, probably, electron temperature in the [OIII] emission region caused by a variable stellar wind from the hot component. All the available observations of the star confirm the theoretical conclusion that the nova-like outburst of V1016 Cyg was produced by a thermonuclear flash in the accreted envelope of a white dwarf.