Properties of Cool Stellar Components in S-Type Symbiotic Stars
In 1975 Webster and Allen (1975) divided all symbiotic stars into two groups-those in which the 1—4 M m continuum show only the presence of a cool star (type S),and those in which dust emission dominates (type D). With the exception of some of yellow symbiotic stars, the dust presence in others correlates with the spectral type of their cool components. That is why one can say that S-type symbiotics contain red giants with spectral type earlier than M6–M7.
KeywordscoLour Index Spectral Type Asymptotic Branch Giant Cool Star Cool Component
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