共生星近红外光谱分类

We present preliminary results of spectral classification observations of symbiotic stars in the nearinfrared region. Representative CCD near-infrared spectra of some K and M standard stars and 3 symbiotic stars are presented. On the specaograms at a dispersion of 33 A/mm the Fel/TiI blend A 8469 and Fel ). 8514 arc more usefu' luminosity discriminants for symbiotic stars than Call triplet (-US498, 8542 and 8662) which is disturbed by emission lines of Call triplet and Paschcn series of HI in some symbiotic stars. For late M symbiotic stars the temperature classification car, be reliably derived from strengths of TiO and VO bands. New spectral types and luminosity classes of six symbiotic stars observed are discussed.