Table 6
Best-fit parameters for the ten regions obtained with DBP90 using the Mathis RF (top and middle tables) and 4 My RF (bottom table).
| DBP90 (α, amin = 1.2 nm, amax = 15 nm) – Mathis RF | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Region | χ2/d.o.f. | XISRF |  |
YVSG | YBG | Ydust,tot (10−2) | INIRcont. | α | amin | amax ( × 10) |  |
 |
| MW | – | 1.00 | 4.30 × 10−4 | 4.70 × 10−4 | 6.40 × 10−3 | 0.73 | – | −2.6 | 1.2 | 1.5 | 0.73 | 6.72 |
| SSDR1 | 1.89 | 1.02 | 4.94 × 10−4 | 1.23 × 10−3 | 6.53 × 10−3 | 0.83 | 3.43 × 10−3 | −0.1 | – | – | 1.88 | 7.57 |
| SSDR5 | 5.10 | 1.66 | 3.18 × 10−4 | 1.40 × 10−3 | 1.04 × 10−2 | 1.21 | 0.00 | −1.87 | – | – | 1.35 | 3.06 |
| SSDR7 | 2.88 | 4.96 | 1.51 × 10−4 | 3.35 × 10−4 | 3.73 × 10−3 | 0.42 | 6.10 × 10−3 | −1.20 | – | – | 0.900 | 4.05 |
| SSDR9 | 7.99 | 1.20 | 7.25 × 10−5 | 1.54 × 10−3 | 9.36 × 10−3 | 1.10 | 1.19 × 10−3 | −0.1 | – | – | 1.65 | 0.774 |
| SSDR8 | 3.49 | 3.93 | 3.09 × 10−5 | 1.99 × 10−3 | 2.21 × 10−3 | 0.42 | 0.00 | −1.66 | – | – | 9.02 | 1.40 |
| SSDR10 | 2.61 | 3.64 | 2.29 × 10−4 | 2.88 × 10−3 | 3.83 × 10−3 | 0.69 | 1.06 × 10−2 | −2.13 | – | – | 7.52 | 5.98 |
| DEML10 | 4.07 | 2.42 | 3.09 × 10−4 | 4.66 × 10−3 | 7.34 × 10−3 | 1.23 | 0.00 | −2.33 | – | – | 6.35 | 4.21 |
| DEML34 | 2.25 | 6.54 | 2.77 × 10−4 | 3.19 × 10−3 | 6.71 × 10−3 | 1.02 | 9.65 × 10−3 | −2.72 | – | – | 4.75 | 4.13 |
| DEML86 | 2.76 | 8.25 | 3.95 × 10−4 | 3.03 × 10−3 | 6.84 × 10−3 | 1.03 | 0.00 | −2.54 | – | – | 4.43 | 5.77 |
| DEML323 | 3.74 | 6.10 | 9.96 × 10−5 | 1.52 × 10−3 | 2.37 × 10−3 | 0.40 | 5.18 × 10−3 | −2.15 | – | – | 6.41 | 4.20 |
| DBP90 (α = −2.6, amin, amax) – Mathis RF | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Region | χ2/d.o.f. | XISRF |  |
YVSG | YBG | Ydust,tot (10−2) | INIRcont. | α | amin | amax ( × 10) |  |
 |
| SSDR1 | 1.67 | 1.71 | 3.01 × 10−4 | 1.03 × 10−3 | 3.53 × 10−3 | 0.48 | 3.36 × 10−3 | −2.6 | 5.87 | 2.46 | 2.92 | 8.53 |
| SSDR5 | 4.92 | 1.96 | 2.73 × 10−4 | 1.46 × 10−3 | 8.25 × 10−3 | 1.00 | 1.04 × 10−4 | −2.6 | 2.40 | 2.11 | 1.77 | 3.31 |
| SSDR7 | 2.92 | 5.11 | 1.49 × 10−4 | 3.11 × 10−4 | 3.66 × 10−3 | 0.55 | 6.07 × 10−3 | −2.6 | 4.34 | 1.75 | 0.850 | 4.07 |
| SSDR9 | 7.29 | 1.90 | 6.06 × 10−5 | 1.61 × 10−3 | 4.95 × 10−3 | 0.66 | 8.52 × 10−4 | −2.6 | 6.96 | 2.30 | 3.25 | 1.22 |
| SSDR8 | 3.53 | 2.08 | 8.44 × 10−5 | 3.29 × 10−3 | 3.62 × 10−3 | 0.70 | 6.50 × 10−4 | −2.6 | 3.18 | 1.60 | 9.09 | 2.33 |
| SSDR10 | 2.62 | 2.95 | 3.26 × 10−4 | 3.33 × 10−3 | 4.92 × 10−3 | 0.86 | 1.05 × 10−2 | −2.6 | 2.79 | 1.49 | 6.77 | 6.63 |
| DEML10 | 3.87 | 4.46 | 1.86 × 10−4 | 2.55 × 10−3 | 5.27 × 10−3 | 0.80 | 0.00 | −2.6 | 1.82 | 1.63 | 4.84 | 3.78 |
| DEML34 | 1.32 | 3.94 | 6.30 × 10−4 | 4.27 × 10−3 | 1.32 × 10−2 | 1.81 | 1.03 × 10−2 | −2.6 | 3.09 | 0.88 | 3.23 | 4.77 |
| DEML86 | 2.08 | 4.52 | 9.09 × 10−4 | 4.75 × 10−3 | 1.35 × 10−2 | 1.92 | 0.00 | −2.6 | 3.43 | 1.00 | 3.52 | 6.73 |
| DEML323 | 3.36 | 3.66 | 2.07 × 10−4 | 2.29 × 10−3 | 4.30 × 10−3 | 0.68 | 5.52 × 10−3 | −2.6 | 3.29 | 1.27 | 5.33 | 4.81 |
| <All> | 3.72 | 1.65 | ||||||||||
| <Diff.> | 5.65 | 2.03 | ||||||||||
| <Mol.> | 4.13 | 2.29 | ||||||||||
| <HII> | 2.93 | 1.31 | ||||||||||
| DBP90 (α = −2.6, amin, amax) – 4 Myr RF | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Region | χ2/d.o.f. | XISRF |  |
YVSG | YBG | Ydust,tot (10−2) | INIRcont. | α | amin | amax ( × 10) |  |
 |
| SSDR1 | 1.65 | 0.089 | 1.13 × 10−4 | 6.07 × 10−4 | 3.36 × 10−3 | 0.40 | 2.44 × 10−3 | −2.6 | 5.26 | 3.51 | 1.81 | 3.36 |
| SSDR5 | 4.91 | 0.090 | 1.06 × 10−4 | 9.55 × 10−4 | 9.01 × 10−3 | 1.00 | 0.00 | −2.6 | 2.42 | 2.66 | 1.06 | 1.18 |
| SSDR7 | 2.93 | 0.26 | 5.53 × 10−5 | 1.83 × 10−3 | 3.77 × 10−3 | 0.57 | 5.10 × 10−3 | −2.6 | 3.32 | 2.45 | 4.85 | 1.46 |
| SSDR9 | 7.27 | 0.15 | 1.62 × 10−5 | 7.23 × 10−4 | 2.93 × 10−3 | 0.37 | 3.64 × 10−4 | −2.6 | 6.90 | 3.73 | 2.47 | 0.552 |
| SSDR8 | 3.33 | 0.20 | 1.61 × 10−5 | 1.12 × 10−3 | 2.04 × 10−3 | 0.32 | 1.07 × 10−4 | −2.6 | 3.26 | 2.32 | 5.49 | 0.789 |
| SSDR10 | 2.59 | 0.13 | 1.30 × 10−4 | 2.24 × 10−3 | 5.27 × 10−3 | 0.76 | 9.07 × 10−3 | −2.6 | 2.72 | 1.98 | 4.25 | 2.47 |
| DEML10 | 3.92 | 0.19 | 7.41 × 10−5 | 1.90 × 10−3 | 5.89 × 10−3 | 0.79 | 0.00 | −2.6 | 1.93 | 2.11 | 3.23 | 1.26 |
| DEML34 | 1.32 | 0.22 | 1.91 × 10−4 | 2.27 × 10−3 | 1.26 × 10−2 | 1.51 | 7.50 × 10−3 | −2.6 | 2.77 | 1.25 | 1.80 | 1.52 |
| DEML86 | 1.96 | 0.22 | 3.18 × 10−4 | 2.91 × 10−3 | 1.41 × 10−2 | 1.73 | 0.00 | −2.6 | 3.08 | 1.39 | 2.06 | 2.26 |
| DEML323 | 3.34 | 0.16 | 8.60 × 10−5 | 1.53 × 10−3 | 4.72 × 10−3 | 0.63 | 4.16 × 10−3 | −2.6 | 3.37 | 1.70 | 3.24 | 1.82 |
| <All> | 3.50 | 2.31 | ||||||||||
| <Diff.> | 5.11 | 3.09 | ||||||||||
| <Mol.> | 3.84 | 3.09 | ||||||||||
| <HII> | 2.86 | 1.79 | ||||||||||
Notes. The value of the reduced χ2 is given in Col. 2, the intensity of the RF in Col. 3, the abundances of different dust components in Cols. 4–6, the total dust abundance in Col. 7, the intensity of the NIR continuum in Col. 8, the small grain size parameters in Cols. 9–11, the ratio of the VSG abundance over the large-grain abundance in Col. 12, and the ratio of the PAH abundance over the total large-grain abundance in Col. 13. Average values of amin and amax 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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