Correlations between He I λ5877 line flux measured in this work, and Hα line flux and UV excess reported in ENTROPY II. The He I and UV flux are in units of 10⁻¹⁷ cgs and Hα are in units of 10⁻¹⁵ cgs. The Pearson’s correlation coefficients (r) and the corresponding p-values are given in each plot. For both He I and Hα, ‘T’ denotes the total flux integrated over their entire profile.