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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 Series 241 32.

• Provider: AAS Journals

Caption: Figure 1.

Distribution of the LAMOST DR5 stars with an S/N > 15 at the g band (the contours) in the Ca II K (3933 Å) vs. Hγ (4340 Å) plane. The blue dashed line with the asterisks and red dashed line with the unfilled circles represent the loci of the main-sequence and giant stars provided by Liu et al. (2015), respectively. The red solid lines are the cuts for OB candidate, following Equations (2) and (3).