An Atlas of 115 medium-resolution K -band (2.0-2.4 μm) stellar spectra, spanning spectral types O-M and luminosity types I-V, is presented. K -band spectra are also presented for one N- and one J-type carbon star. A time series of spectra is presented for an S-type Mira variable. All the spectra are at a resolution of ~3000 (1.4 cm -1 ) and have had the terrestrial absorption removed by dividing by a featureless spectrum. The spectra are plotted with the major spectral features identified and are available digitally.
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Wallace et al. (1997) studied this question.
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