Table 3.
Absorption column densities for late-type galaxies.
| Name | NH, f = 0.5 | NH, f = 1 | Metallicity | References |
|---|---|---|---|---|
| (1021 cm−2) | (1021 cm−2) | (Z⊙) | for metallicity | |
| (1) | (2) | (3) | (4) | (5) |
| NGC 5236 (M 83) | 3.35 | 6.35 | ∼0.5* | Bresolin et al. (2009) |
| NGC 5194 (M 51) | 1.84 | 3.51 | ∼0.7* | Moustakas et al. (2010, see Table 8, KK04 calibration) |
| NGC 3031 (M 81) | 1.30 | 1.53 | ∼0.7* | Stanghellini et al. (2014) |
| NGC 5457 (M 101) | 1.67 | 2.46 | 1 | Assumed for spectral fit |
Notes. (1) Galaxy name. (2) and (3) Median value of NH of soft sources calculated assuming f = 0.5 and f = 1 (Eq. (5)) respectively. (4) Metallicities of galaxies used in spectral fit and (5) References for these values. Metallicities marked with an asterisk were recalculated relative to solar abundance [O/H]⊙ = 4.9 × 10−4 of Wilms et al. (2000).
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