NOVA Cyg 2014
An amateur spectroscopic survey of a peculiar Nova
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NOVA Cyg 2014 An amateur spectroscopic survey of a peculiar Nova |
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| update 30-05-2014 |
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The peculiar lightcurve of Nova Cyg 2014
red dots = ARAS Spectra
Selected spectra from ARAS data base
The spectra are flux calibrated, using AAVSO data base (V band)
| AAVSO Light curve (V + Vis.) | Full optical range [4000-7500 Å] Flux : Logarithmic scale | H alpha | H beta |
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Step by step evolution
After the classical rapid rise in luminosity, the slope changes between JD 2456750.0 and JD 2456754.9 During the premaximum halt (?), the absorptions disappear. |
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| At maximum luminosity, emission lines vanish and strong absorptions reappear. |
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The maximum is followed by a very fast decline from Mag V = 9.4 to 10.8 (14/04/2014) in four days (about 0.35 mag/day) During this first phase of this decline, absorptions disappear. The Balmer lines evolve : a broad piedestal (FWZI = 2700 km/s) appear. |
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| At the minimum (JD 2456761.9), 4 days (V = + 1.5 mag) after maximum the emission lines are broader |
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Evolution of the absorption system
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List of observers
C. Buil O. Garde A. Garcia P. Gerlach T. Lester J. Montier F. Teyssier
