The effects of the environment on the central activity of galaxies as derived using mid-IR tracers

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Table 3.

Excitation-type fractions over the full stellar mass range (‘Total’ column of Table 2).

Excitation type
Sy2	Retired	LINER	SFG
VCM (0.08 ± 0.03)	H I-normal (0.12 ± 0.03)	RPS (0.19 ± 0.05)	H I-deficient (0.25 ± 0.05)
H I-deficient (0.11 ± 0.04)	RPS (0.12 ± 0.04)	H I-normal (0.22 ± 0.04)	VCM (0.44 ± 0.06)
H I-normal (0.11 ± 0.03)	field (0.19 ± 0.04)	field (0.23 ± 0.04)	field (0.45 ± 0.06)
field (0.13 ± 0.03)	VCM (0.23 ± 0.05)	VCM (0.24 ± 0.05)	RPS (0.54 ± 0.09)
RPS (0.14±0.04)	HI-deficient (0.36±0.07)	HI-deficient (0.28±0.06)	HI-normal (0.55±0.06)

Notes. These fractions are based on central aperture colour indices (Section 4.1). Environmental classifications (Sections 2.1 and 2.2) are ordered by ascending fractional contribution within each excitation type, with the highest values highlighted.

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