A spectroscopic analysis of the eclipsing nova-like EC 21178−5417 – discovery of spiral density structures
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Date
2020
Authors
Journal Title
Journal ISSN
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Publisher
Oxford University Press
Abstract
We present phase-resolved optical spectroscopy of the eclipsing nova-like cataclysmic variable EC 21178−5417 obtained between 2002 and 2013. The average spectrum of EC 21178−5417 shows broad double-peaked emission lines from He II 4686 Å (strongest feature) and the Balmer series. The high-excitation feature, C III/N III at 4640–4650 Å, is also present and appears broad in emission. A number of other lines, mostly He I, are clearly present in absorption and/or emission.
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Keywords
Accretion, Accretion discs, Binaries: close, Stars: individual: EC 21178−5417, Cataclysmic variables
Citation
Kilkenny, D. et al. (2020). A spectroscopic analysis of the eclipsing nova-like EC 21178−5417 – discovery of spiral density structures. Monthly Notices of the Royal Astronomical Society, 495(1), 637–649