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Table 1

Megamaser sample, global properties, and references.

Name z N H log (L2−10) Ref. M BH Ref. R d Disk size Ref.
[1024 cm-2] [erg s-1] [106 M] [pc] [pc]
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)

NGC 1068 0.0038 > 5.6 43.34 Bau14 8.0 ± 0.3 Lod03 0.27 0.651.1 Gre97
NGC 1194 0.0136 1.4 42.78 this work 65 ± 3 Kuo11 0.14 0.541.33 Kuo11
NGC 1386 0.0029 5 ± 1 41.90 this work 1.2 McC13 0.05 0.440.94 Til08
NGC 2273 0.0061 > 7.3 43.11 this work 7.5 ± 0.4 Kuo11 0.20 0.0340.20 this work*
NGC 2960 0.0165 0.5 41.41 this work 11.6 ± 0.5 Kuo11 0.03 0.130.37 Kuo11
NGC 3079 0.0037 2.5 ± 0.3 42.15 this work 2.4 McC13 0.07 0.41.3 Kon05
NGC 3393 0.0125 2.2 43.30 this work 31 ± 2 Kon08 0.25 0.171.5 Kon08
NGC 4388 0.0084 0.44 ± 0.06 42.59 this work 8.5 ± 0.2 Kuo11 0.11 0.240.29 Kuo11
NGC 4945 0.0019 3.5 ± 0.2 42.52 Puc14 1.4 McC13 0.10 0.130.41 this work**
IC 2560 0.0098 > 6.7 42.98 this work 3.5 ± 0.5 Yam12 0.17 0.0870.335 Yam12
Circinus 0.0015 8.7 ± 1.5 42.57 Are14 1.7 ± 0.3 Gre03 0.11 0.110.4 Gre03

NGC 4258 0.0015 0.087 ± 0.003 41.2 Cas13 39 ± 3 Til08 0.02 0.120.28 Til08
NGC 6264 0.0340 > 1 42.6 Cas13 29.1 ± 0.4 Kuo11 0.11 0.240.80 Kuo11
UGC 3789 0.0109 > 1 42.3 Cas13 10.4 ± 0.5 Kuo11 0.08 0.0840.30 Kuo11

Notes. Main properties of the disk maser AGN sample used in this work. The last three sources are the ones lacking NuSTAR data.(1) Galaxy name. (2) Redshift. (3) Best fit intrinsic column density. (4) Logarithm of the best fit intrinsic (deabsorbed) 210 keV luminosity. (5) References for Cols. (3)(4): Are14 Arévalo et al. (2014); Bau14 Bauer et al. (2015); Cas13 Castangia et al. (2013); Puc14 Puccetti et al. (2014). (6) AGN central mass. (7) References for Col. (6): Gre03 Greenhill et al. (2003); Til08 Tilak et al. (2008); Kon08 Kondratko et al. (2008); Kuo11 Kuo et al. (2011); Lod03 Lodato & Bertin (2003); McC13 McConnell & Ma (2013); Yam12 Yamauchi et al. (2012). (8) Dust sublimation radius, calculated using the relation from Gandhi et al. (2009). See Sect. 3 for details. (9) Maser disk inner and outer radii. (10) References for Col. (9): Gre97 Greenhill & Gwinn (1997); Gre03 Greenhill et al. (2003); Kon05 Kondratko et al. (2005); Kon08 Kondratko et al. (2008); Kuo11 Kuo et al. (2011); Til08 Tilak et al. (2008); Yam12 Yamauchi et al. (2012).

(*)

New maser disk extension estimate from VLBI maps.

(**)

Adapted from Greenhill et al. (1997).

(†)

Maser method mass for which in the original paper an uncertainty is not provided. The error given by McConnell & Ma (2013) is overestimated.

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