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The Structure of the Envelopes of Symbiotic Novae+

Published online by Cambridge University Press:  12 April 2016

G.B. Baratta
Affiliation:
Osservatorio Astronomico, Via del Parco Mellini 84, 00136 Roma
A. Damineli Neto
Affiliation:
Istituto Astrofisica Spaziale, CNR, Via E. Fermi 21, 00044 Frascati RM
C. Rossi
Affiliation:
Istituto Astronomico, Università La Sapienza, Via Lancisi 29, 00161 Roma
R. Viotti
Affiliation:
Istituto Astrofisica Spaziale, CNR, Via E. Fermi 21, 00044 Frascati RM

Extract

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Symbiotic novae are composite spectrum stars whose light history is characterized by one single major outburst. At high resolution their optical and UV spectra are very rich of emission lines belonging to a wide ionization range. Generally one can identify both narrow and broad line systems. The latter includes emission lines with multiple structure, broad emission wings, WR features, and P Cygnl lines. Frequently the broad line profiles are largely variable with time. They should be associated with the major stellar outburst. An overview of the problem with extensive references can be found in Viotti (1989).

Type
4. Related Objects
Copyright
Copyright © Springer-Verlag 1990

Footnotes

*

On leave of absence from Instituto Astronomico e Geofisico da Universidade de Sao Paulo, Sao Paulo, Brasil.

+

Based on spectra collected at the Dominion Astrophysical Observatory, Victoria, Canada, and at the Laboratorio Nacional de Astrofisica, Minas Gerais, Brasil.

References

Baratta, G.B., Viotti, R.: 1989, Astron. Astrophys. in press.Google Scholar
Crampton, D., Grygar, J., Kohoutek, L., Viotti, R.: 1970, Astrophys. Lett., 6, 5.Google Scholar
Viotti, R.: 1989, in Cataclysmic and Related Variables, Hack, M. ed., NASA in press.Google Scholar
Wallerstein, G., Soif, J., Mikolajewska, J., Crampton, D., Brugel, E.: 1989, P.A.S.P. 101, 189.CrossRefGoogle Scholar