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Periodic Variabilities in the IUE Spectra of SS Cygni

Published online by Cambridge University Press:  12 April 2016

R. Lombardi
Affiliation:
Istituto di Astronomia, Università di Roma, La Sapienza, Roma, Italy
F. Giovannelli
Affiliation:
Istituto di Astrofisica Spaziale, CNR, Frascati , Italy
S. Gaudenzi
Affiliation:
Istituto di Astronomia, Università di Roma, La Sapienza, Roma, Italy

Abstract

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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.

Type
III. UV and X-Ray Observations
Copyright
Copyright © Reidel 1987

References

Fabbiano, G., et al.: 1981, Astrophys. J. 213, 145.Google Scholar
Feldt, A.N., Chincarini, G.: 1980, Pub. Astr. Soc. Pacific 92, 528.CrossRefGoogle Scholar
Giovannelli, F., et al.: 1983, Acta Astron. 33, 319 Google Scholar
Giovannelli, F., et al.: 1984, ESA SP-218, p. 391.Google Scholar
Giovannelli, F., et al.: 1985, in Multifrequency Behaviour of Galactic Accreting Sources, Giovannelli, F. (ed.), Siderea, Roma, P. 37.Google Scholar
Hessman, F.V., et al.: 1984, Astrophys. J. 286, 747 CrossRefGoogle Scholar
Howarth, I.D.: 1978, J. Br. Astron. Assoc. 88, 5, p. 458.Google Scholar
Kiplinger, A.L.: 1979, Astron. J. 84, 655 CrossRefGoogle Scholar
Lomb, M.R.: 1976, Astrophys. Space Sci. 39, 447 CrossRefGoogle Scholar
Patterson, J., Raymond, J.C.: 1985, Astrophys. J. 292, 535.CrossRefGoogle Scholar
Raymond, J.C. et al.: 1979, Astrophys. J. Letters 230, L95.CrossRefGoogle Scholar
Seaton, M.J.: 1979, Mon. Not. R. astron. Soc. 187, 73p.CrossRefGoogle Scholar
Voloshina, I.V., Lyutyi, V.M.: 1983, Soviet Astron. Letters 9, 319.Google Scholar
Warner, B.: 1983, IAU Coll. No. 72, p. 155.Google Scholar
Zuckermann, M.C.: 1961, Annales d’Astrophysique 24, 431.Google Scholar