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Table 1

Number of galaxies of each type in each sample.

Type SIP SDSS pairs SIG SDSS single

Total 764 2251 2299 6867
Optical AGN 387 1009 1153 3027
      LINER 152 454 482 1081
      Seyfert 44 96 123 266
      TO 191 459 548 1680
SFN 169 564 587 1777
Passive 208 678 559 2063

Radio AGN 10 39 11 22
      HERG 1 2 0 0
      LERG 8 37 11 22

Notes. Meaning of the different types. Total: total number of galaxies in each sample; optical AGN: galaxies classified as LINER, Seyfert, or transition objects (TO); SFN: star-forming nuclei galaxies; passive: galaxies with no optical nuclear activity; radio AGN: galaxies classified as HERG or LERG radio AGN with L1.4 GHz ≥ 1023 W m-2 Hz-1.

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