Spectral classification of the cool companions of symbiotic stars.

Astronomy and Astrophysics – Astronomy

Scientific paper

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Symbiotic Stars: Infrared Spectra, Symbiotic Stars: Cool Stars, Symbiotic Stars: Spectral Classification

Scientific paper

In the near infrared band (λλ8100 to 8725 Å), the spectra of 10 S-type symbiotic stars and 27 K-M type comparison stars have been observed with a moderate dispersion of 33 Å mm-1, the resolving power R = λ/δλ > 4000, signal to noise ratio S/N > 100. All the ten bright symbiotic stars are class III giants, none of them presents the features of a bright giant or supergiant.

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