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Elemental Abundances in Symbiotic Stars

Published online by Cambridge University Press:  07 August 2017

H.M. Schmid  and
H. Nussbaumer
H.M. Schmid
Affiliation:
Institute of Astronomy, ETH Zentrum, CH-8092 Zurich
H. Nussbaumer
Affiliation:
Institute of Astronomy, ETH Zentrum, CH-8092 Zurich

Extract

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Symbiotic objects are related to planetary nebulae in that they represent late stages of stellar evolution. They are interacting binary systems where a hot companion star ionizes the stellar wind of a red giant. This configuration offers the unique possibility for deriving elemental abundances for cool giants from a nebular spectrum with the diagnostic tools employed for HII regions. The analysis can be applied to different types of symbiotic systems having a G, K or M giant, a Mira variable or a carbon star as cool component. The great advantage of this technique is, that it does not depend on stellar parameters or molecular data, and that it can therefore be used as a test or an alternative for the traditional photospheric abundance determinations.

Type
IV. Planetary Nebulae Connection: Evolution from the AGB
Information
Symposium - International Astronomical Union , Volume 155: Planetary Nebulae , 1993 , pp. 402
Copyright
Copyright © Kluwer 1993 

References

de Freitas Pacheco, J.A., Costa, R.D.D.: 1992, A&A 257, 619 Google Scholar
Lambert, D.L., Gustafsson, B., Eriksson, K., Hinkle, K.H.: 1986, ApJS 62, 373 Google Scholar
Nussbaumer, H., Schild, H., Schmid, H.M., Vogel, M.: 1988, A&A 198, 179 Google Scholar
Schild, H., Boyle, S.J., Schmid, H.M.: 1992, MNRAS , (in press) Google Scholar
Schmid, H.M., Schild, H.: 1990, MNRAS 246, 84 Google Scholar