Abstract
A H-R diagram is drawn from the bolometric luminosities and effective temperatures of 24 symbiotic stars and compared with theoretical evolutionary tracks of Population I metal-rich stars. It is shown that the S-type and D-type symbiotic stars are classified very clearly in course of their evolution and it is suggested that it depends on their cool components, whether it is a normal giant or an asymptotic giant branch star. The recurrent novae are less evolved than classical novae or symbiotic novae.
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Seal, P. A discussion on the classification and evolution of symbiotic stars. Astrophys Space Sci 174, 321–325 (1990). https://doi.org/10.1007/BF00642518
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DOI: https://doi.org/10.1007/BF00642518