A Catalog of OB Stars from LAMOST Spectroscopic Survey
Authors: Zhicun Liu, Wenyuan Cui, Chao Liu, Yang Huang, Gang Zhao, and Bo Zhang
2019 The Astrophysical Journal Supplement Series24132.
Provider: AAS Journals
Caption: Figure 11.
Gray shadow displays the distribution of Ca II K vs. Hγ for the stars with successful classifications in MKCLASS. The red contours indicate the similar distribution for the stars with discrepant classifications in MKCLASS.