Table 4
Best-fit parameters for the ten regions obtained with MC11 using the Mathis RF (top table) and 4 Myr RF (bottom table).
| MC11 (a0) – Mathis RF | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Region | χ2/d.o.f. | XISRF |  |
 |
YSamC | YLamC | YaSil | Ydust,tot (10−2) | INIRcont. (10−3) | a0 |  |
 |
| MW | – | 1.00 | 7.80 × 10−4 | 7.80 × 10−4 | 1.65 × 10−4 | 1.45 × 10−3 | 6.70 × 10−3 | 0.99 | – | 2.0 | 0.20 | 19.14 |
| SSDR1 | 1.64 | 0.65 | 8.74 × 10−4 | 2.83 × 10−4 | 3.33 × 10−3 | 3.50 × 10−3 | 1.92 × 10−5 | 0.80 | 4.06 | 4.51 | 9.46 | 32.9 |
| SSDR5 | 4.98 | 1.64 | 4.71 × 10−4 | 5.95 × 10−6 | 1.09 × 10−3 | 3.93 × 10−3 | 1.38 × 10−2 | 1.90 | 0.963 | 2.67 | 0.615 | 2.69 |
| SSDR7 | 2.88 | 4.71 | 2.18 × 10−4 | 4.59 × 10−6 | 3.77 × 10−4 | 5.36 × 10−4 | 9.09 × 10−3 | 1.02 | 7.62 | 3.73 | 0.392 | 2.31 |
| SSDR9 | 7.38 | 0.65 | 1.09 × 10−4 | 2.38 × 10−4 | 6.09 × 10−3 | 4.60 × 10−3 | 1.01 × 10−6 | 1.10 | 0.402 | 4.60 | 13.2 | 7.54 |
| SSDR8 | 3.40 | 1.01 | 1.85 × 10−4 | 2.48 × 10−4 | 7.59 × 10−3 | 3.16 × 10−3 | 1.00 × 10−6 | 1.11 | 0.00 | 2.91 | 24.0 | 13.7 |
| SSDR10 | 2.57 | 1.41 | 8.93 × 10−4 | 1.78 × 10−4 | 7.15 × 10−3 | 4.71 × 10−3 | 5.83 × 10−4 | 1.35 | 11.4 | 2.66 | 13.5 | 20.2 |
| DEML10 | 3.87 | 2.38 | 4.52 × 10−4 | 1.48 × 10−4 | 3.25 × 10−3 | 7.07 × 10−3 | 1.00 × 10−6 | 1.09 | 0.00 | 2.17 | 4.60 | 8.49 |
| DEML34 | 0.83 | 4.38 | 2.59 × 10−4 | 5.86 × 10−4 | 4.28 × 10−3 | 5.12 × 10−4 | 3.20 × 10−2 | 3.76 | 0.109 | 2.03 | 1.32 | 2.60 |
| DEML86 | 1.06 | 4.22 | 4.93 × 10−4 | 1.25 × 10−3 | 5.45 × 10−3 | 2.01 × 10−3 | 3.05 × 10−2 | 3.97 | 0.00 | 2.22 | 1.68 | 5.36 |
| DEML323 | 3.21 | 2.19 | 2.93 × 10−4 | 2.68 × 10−4 | 3.92 × 10−3 | 2.65 × 10−3 | 4.36 × 10−3 | 1.15 | 4.76 | 2.51 | 5.59 | 8.00 |
| <All> | 3.00 | |||||||||||
| <Diff.> | 4.17 | |||||||||||
| <Mol.> | 3.59 | |||||||||||
| <HII> | 2.42 | |||||||||||
| MC11 (a0)–4MyrRF | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Region | χ2/d.o.f. | XISRF |  |
 |
YSamC | YLamC | YaSil | Ydust,tot (10−2) | INIRcont. (10−3) | a0 |  |
 |
| SSDR1 | 1.59 | 0.042 | 3.08 × 10−4 | 2.57 × 10−5 | 1.08 × 10−3 | 4.32 × 10−3 | 4.03 × 10−3 | 0.98 | 3.3 | 4.86 | 1.29 | 3.99 |
| SSDR5 | 4.95 | 0.054 | 2.62 × 10−4 | 1.00 × 10−6 | 7.70 × 10−4 | 4.62 × 10−3 | 1.63 × 10−2 | 2.20 | 0.309 | 2.82 | 0.368 | 1.26 |
| SSDR7 | 2.88 | 0.099 | 2.00 × 10−4 | 1.00 × 10−6 | 3.55 × 10−4 | 4.37 × 10−4 | 1.11 × 10−2 | 1.21 | 6.25 | 3.65 | 0.308 | 1.74 |
| SSDR9 | 7.35 | 0.064 | 3.30 × 10−5 | 3.04 × 10−5 | 1.21 × 10−3 | 7.64 × 10−3 | 1.77 × 10−6 | 0.89 | 0.208 | 5.04 | 1.58 | 0.829 |
| SSDR8 | 3.50 | 0.10 | 3.80 × 10−5 | 3.98 × 10−5 | 1.82 × 10−3 | 5.16 × 10−3 | 2.27 × 10−6 | 0.71 | 0.00 | 3.30 | 3.53 | 1.51 |
| SSDR10 | 2.58 | 0.12 | 2.20 × 10−4 | 1.00 × 10−6 | 2.21 × 10−3 | 6.80 × 10−3 | 1.00 × 10−6 | 0.92 | 10.0 | 3.10 | 3.25 | 3.25 |
| DEML10 | 3.90 | 0.21 | 9.90 × 10−5 | 1.31 × 10−5 | 9.71 × 10−4 | 8.11 × 10−3 | 1.00 × 10−6 | 0.92 | 0.00 | 2.44 | 1.20 | 1.47 |
| DEML34 | 0.89 | 0.15 | 1.62 × 10−4 | 2.83 × 10−4 | 3.56 × 10−3 | 6.73 × 10−3 | 1.45 × 10−2 | 2.52 | 8.76 | 2.36 | 1.68 | 2.10 |
| DEML86 | 1.10 | 0.10 | 4.24 × 10−4 | 7.48 × 10−4 | 6.28 × 10−3 | 2.01 × 10−3 | 2.57 × 10−3 | 1.20 | 0.00 | 2.58 | 13.7 | 25.59 |
| DEML323 | 3.24 | 0.13 | 1.15 × 10−4 | 5.46 × 10−5 | 1.85 × 10−3 | 4.17 × 10−3 | 2.98 × 10−3 | 0.92 | 4.03 | 2.94 | 2.59 | 2.37 |
| <All> | 3.31 | |||||||||||
| <Diff.> | 4.35 | |||||||||||
| <Mol.> | 3.84 | |||||||||||
| <HII> | 2.79 | |||||||||||
Notes. The value of the reduced χ2 is given in Col. 2, the intensity of the RF in Col. 3, the abundances of the different dust components in Cols. 4–8, the total dust abundance in Col. 9, the intensity of the NIR continuum in Col. 10, the small-grain size parameter a0 in nm in Col. 11, the ratio of the small amorphous carbon abundance over the total large-grain abundance in Col. 12, and ratio of the total PAH abundance over the total large-grain abundance in Col. 13. Bottom table: Same as the top table, but using a 4 Myr RF. Average values of a0 in nm, deduced from all regions, from diffuse (SSDR7 and SSDR9), molecular (SSDR1 and SSDR5), and ionized region (SSDR8, SSDR10, DEML10, DEML34, DEML86, and DEML323) are also given. A null abundance is not possible for computational reason and is set to 1.00 × 106 instead. Standard parameters for our Galaxy are also given for comparison.
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