EARLY PHOTOMETRIC AND SPECTRAL EVOLUTION OF NOVA CYGNI 2014 (V2659 CYG)

被引:0
作者
Burlak, M. A. [1 ]
Esipov, V. F. [1 ]
Komissarova, G. V. [1 ]
机构
[1] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Univ Skij Prospect 13, Moscow 119992, Russia
关键词
novae; cataclysmic variables; stars: individual: V2659 Cyg;
D O I
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中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present optical spectroscopic and UBV(RI)(C) photometric observations of Nova Cygni 2014 (V2659 Cyg) from its rebrightening to the nebular stage. After the first maximum, the nova underwent several irregular flare-like rebrightenings, with amplitudes up to two magnitudes, accompanied with spectral changes. During the bright state, forbidden lines became weaker; the absorption components of Balmer, He I, Fe II, N I, N II, O I lines strengthened, indicating an increase in the density and mass-loss rate in the form of a wind.
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页码:345 / 352
页数:8
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