Table 2
Parameters of the intrinsic distribution of stars and dust in NGC 4013 as obtained by FitSKIRT, by Bianchi (2007) and by Xilouris et al. (1999).
| Parameter | Unit | FitSKIRT | B07 | X99 |
|
|
||||
| τf | – | 0.97 ± 0.36 | 1.46 | 0.67 ± 0.01 |
| τe | – | 15.1 ± 3.1 | 21.0 | 12.6 |
| Md | 106 M⊙ | 9.9 ± 1.9 | 7.3 | 7.3 |
| hR,d | kpc | 3.00 ± 0.46 | 2.08 | 3.09 ± 0.13 |
| hz,d | pc | 192 ± 16 | 145 | 164 ± 13 |
| hR, ∗ | kpc | 2.12 ± 0.11 | 2.89 | 2.45 ± 0.13 |
| hz, ∗ | pc | 287 ± 104 | 376 | 278 ± 13 |
| B/D | – | 1.18 ± 0.32 | 2.13 | 1.47 |
| Re | kpc | 2.30 ± 0.46 | 1.91 | 1.79 ± 0.05 |
| n | – | 3.2 ± 0.7 | 4 | 4 |
| q | – | 0.35 ± 0.03 | 0.37 | 0.44 ± 0.01 |
| i | deg | 90.0 ± 0.1 | 89.9 | 89.7 ± 0.1 |
Notes.For the latter two models, the values are scaled to our assumed distance of 18.6 Mpc and dust masses are calculated using the same values for the dust extinction coefficient κ as used in FitSKIRT.
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