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Periodic variabilities in the IUE spectra of SS Cygni


The analysis of the IUE low resolution spectra of SS Cyg in quiescence clearly shows modulations with the orbital phase of the continuum and the emission lines total area. The shape of such modulations is depending on the type of the optical outburst preceding the quiescent phase in which the UV spectra were collected. This behaviour, together with those in other wavelength regions, could be explained within the framework of the intermediate polar models.

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Lombardi, R., Giovannelli, F. & Gaudenzi, S. Periodic variabilities in the IUE spectra of SS Cygni. Astrophys Space Sci 130, 275–278 (1987).

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  • Emission Line
  • Wavelength Region
  • Polar Model
  • Orbital Phase
  • Quiescent Phase