Chromospheric Activity of Periodic Variable Stars Based on the LAMOST Low- and Medium-resolution Spectral Survey
Authors: Liu Long, Li-yun Zhang*, Shao-Lan Bi, Jianrong Shi, Hong-Peng Lu, Xianming L. Han, Haifeng Wang, and Misra Prabhakar
2021 The Astrophysical Journal Supplement Series25351.
Provider: AAS Journals
Caption: Figure 10.
Ratio of maximum and minimum EWs of Hα lines, R(EWHα), plotted against spectral type. The inset shows the mean values of R(EWHα) as a function of spectral type.