Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-05T08:58:41.087Z Has data issue: false hasContentIssue false
  • English
  • Français

The Symbiotic Binary System AG Pegasi

Published online by Cambridge University Press:  14 August 2015

Charles D. Keyes  and
Mirek J. Plavec
Charles D. Keyes
Affiliation:
Department of Astronomy, University of California Los Angeles, CA 90024, U.S.A.
Mirek J. Plavec
Affiliation:
Department of Astronomy, University of California Los Angeles, CA 90024, U.S.A.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A complete coverage of the spectrum of AG Peg has been obtained between wavelengths 1200 − 7000 A by us, and can be supplemented by IR photometric observations by others. Our IUE observations yield a lower value of E(B-V), about 0.12. The two stellar components are easily recognized, but their characteristics are still rather uncertain.

The cool component may be a normal M1.7 III giant, but the temperature and luminosity of the hot star remain largely indeterminate. Firstly, there are no good models for a hot subdwarf, and secondly, it is difficult to determine the relative contribution of the star itself and the surrounding hydrogen cloud.

The emission lines observed in the UV have double or triple structure, indicating two or three distinct emitting regions.

Type
X. … and The Rest (Symbiotics, Supergiants, Planetaries, Population II Systems)
Information
Symposium - International Astronomical Union , Volume 88: Close Binary Stars: Observations and Interpretation , 1980 , pp. 535 - 542
Copyright
Copyright © Reidel 1980 

References

Bath, G.T.: 1978, Mon. Not. R.A.S. 182, 35.CrossRefGoogle Scholar
Bohlin, R.C., Harrington, J.P., and Stecher, T.P.: 1978, Ap. J. 219, 575.CrossRefGoogle Scholar
Gallagher, J.S., Holm, A.V., Anderson, C.M., and Webbink, R.F.: 1979, Astrophys. J. 229, 994.CrossRefGoogle Scholar
Hutchings, J.B., Cowley, A.P., and Redman, R.O.: 1975, Ap. J. 201, 404.CrossRefGoogle Scholar
Lee, T.A.: 1970, Ap. J. 162, 217.CrossRefGoogle Scholar
Plavec, M., Ulrich, R.K., and Polidan, R.S.: 1974, Pub. A.S.P. 85, 769.CrossRefGoogle Scholar
Swings, J.-P. and Allen, D.A.: 1972, Pub. Astr. Soc. Pacif. 84, 523.CrossRefGoogle Scholar
Szkody, P.: 1977, Astrophys. J. 211, 432 Google Scholar
Thackeray, A.D. and Hutchings, J.B.: 1974, Mon. Not. R.A.S. 167, 319.CrossRefGoogle Scholar