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Table 2

The average values and standard deviations of the logarithmic luminosity ratios for each subset of Seyfert galaxies.

(1) (2) (3) (4) (5)
LX/L [O IV]  L7 μm/L [O IV]  L [O III] /L [O IV]  Parent Sample
Parent Sample Subset Number log(Ratio) Number log(Ratio) Number log(Ratio) Number

CfA Sy1 maser 3 0.8 ± 0.9 3 1.6 ± 0.1 3 0.0 ± 0.6 3
Sy1 non-maser 16 2.0 ± 0.5 14 1.9 ± 0.5 16 0.1 ± 0.4 18
Sy1 unknown 2 1.73 ± 0.02 3 2.1 ± 0.6 2 −0.1 ± 0.1 4
Sy2 maser 4 0.1 ± 0.5 4 1.2 ± 0.7 4 −0.2 ± 0.6 4
Sy2 non-maser 16 1.1 ± 0.9 18 1.3 ± 0.5 20 −0.2 ± 0.5 24
Sy2 unknown 0 1 1.4 1 −1.3 1

12 μm Sy1 maser 2 1.25 ± 0.93 2 1.6 ± 0.1 2 0.4 ± 0.5 2
Sy1 non-maser 22 2.0 ± 0.6 22 1.8 ± 0.5 27 0.1 ± 0.4 30
Sy1 unknown 4 2.3 ± 0.6 5 1.9 ± 0.6 6 0.0 ± 0.3 9
Sy2 maser 11 0.5 ± 0.7 10 1.2 ± 0.6 11 −0.3 ± 0.5 13
Sy2 non-maser 29 0.9 ± 1.0 34 1.4 ± 0.5 42 −0.4 ± 0.6 51
Sy2 unknown 1 1.1 1 1.4 2 −0.7 ± 0.9 2

IRAS Sy1 maser 0 0 0 0
Sy1 non-maser 13 2.2 ± 0.4 10 1.7 ± 0.3 15 0.0 ± 0.4 15
Sy1 unknown 0 0 0 0
Sy2 maser 8 0.2 ± 1.0 8 1.2 ± 0.7 8 −0.3 ± 0.4 8
Sy2 non-maser 6 0.7 ± 0.8 9 1.3 ± 0.5 10 −0.2 ± 0.5 11
Sy2 unknown 0 0 0 0

Combined: Sy1 maser 3 .8 ± 0.9 3 1.6 ± 0.1 3 0.0 ± 0.6 3
CfA ∪ Sy1 non-maser 28 2.0 ± 0.6 25 1.8 ± 0.5 33 0.1 ± 0.4 36
12 μm ∪ Sy1 unknown 5 2.1 ± 0.6 6 1.9 ± 0.5 7 0.0 ± 0.3 10
IRAS    Sy2 maser 13 0.4 ± 0.8 12 1.1 ± 0.6 13 −0.4 ± 0.5 15
Sy2 non-maser 32 0.9 ± 1.0 42 1.4 ± 0.5 50 −0.3 ± 0.6 60
Sy2 unknown 1 1.1 1 1.4 2 −0.7 ± 0.9 2

Notes. Column 1: in descending order, the optically selected CfA sources (Huchra & Burg 1992), the MIR-selected 12 μm sources (Rush & Malkan 1993), the IRAS F25/F60 flux-ratio selected sources (Schmitt et al. 2003) and the combined sample that is used in this work. Columns 2–4: number of sources with luminosities available in [O IV] and one of the following: 2–10 keV X-rays (Col. 2) or 7 μm (Col. 3) or [O III] (Col. 4). Each sample’s row is subdivided into Sy1 maser, non-maser, maser-unknown and Sy2 maser, non-maser, and maser-unknown. Column 5: total number of objects in the parent sample from Col. 1, e.g. 3 Sy1 maser in the CfA, 18 Sy1 non-maser in the CfA, and so forth.

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