All Tables

Table 1: The basic properties of the 27 combined spectra. Columns (1)-(6) refer to the counting number, the label for the mass bin (marked in Fig. 1), the mass bin, the average EW([O II] $\lambda$ 3727) of the sample galaxies in each bin, the total number of the galaxies, and the number of the selected spectra to be combined (about half) in each bin, respectively.
Table 2: The derived properties of the combined galaxies.