Massive Stars in the SDSS-IV/APOGEE SURVEY. I. OB Stars
In this work, we make use of DR14 APOGEE spectroscopic data to study a sample of 92 known OB stars. We developed a near-infrared semi-empirical spectral classification method that was successfully used in case of four new exemplars, previously classified as later B-type stars. Our results agree well with those determined independently from ECHELLE
Roman-Lopes, A. et al.
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2018