Table 3.
Summary statistics for interstellar host-galaxy reddening E(B − V) obtained from simulating dust columns densities in random sight lines to type Ia SNe.
| LT (B/T = 0) | LT (B/T = 0.3) | S0 | E | All types | ||||||
| any Rp | Rp = 0 | Rp = 0.5R25 | z = 0 | any Rp | Rp = 0 | Rp = 0.5R25 | any Rp | any Rp | any Rp | |
| ⟨E(B − V)⟩ | 0.15 | 0.35 | 0.08 | 0.20 | 0.19 | 0.33 | 0.08 | 0.019 | 0.002 | 0.09 |
| E(B − V)25% | 0.02 | 0.10 | 0.02 | 0.06 | 0.03 | 0.13 | 0.02 | 0.004 | 0.00004 | 0.001 |
| E(B − V)50% | 0.08 | 0.27 | 0.05 | 0.11 | 0.11 | 0.26 | 0.5 | 0.013 | 0.0002 | 0.019 |
| E(B − V)75% | 0.19 | 0.48 | 0.09 | 0.22 | 0.26 | 0.44 | 0.09 | 0.026 | 0.0013 | 0.10 |
| E(B − V)95% | 0.56 | 1.05 | 0.26 | 0.71 | 0.67 | 0.95 | 0.26 | 0.064 | 0.010 | 0.43 |
| γ | 0.62 | 0.91 | 0.70 | 1.03 | 0.66 | 1.17 | 0.70 | 0.71 | 0.29 | 0.30 |
Notes. The results are based on modelling the dust and type Ia SN distributions in galaxies representing four morphological types (see details in Tables 1–2). For LT galaxies the table provides also summary statistics conditioned on projected distances Rp between SNe and the host-galaxy centre (two cases with Rp = 0 and Rp = 0.5R25) or SNe originating from the z = 0 plane of the disc-dominated (B/T = 0) galaxy. Finally, ⟨⟩ and “k” denote the mean and k-th percentile, while γ is the best-fit parameter of the γ-distribution model fitted to the simulated data.
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