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Table 4
Results for H2CO and CH3OH from the flat model based on constant densities and constant temperatures.
| Molecule/ | Integration | Flat model | Comparison | |||||
|---|---|---|---|---|---|---|---|---|
| source | (homogeneous structure) | of | ||||||
| settings(a) |  |
 |
N(X)total |  |
 (X) |
 (X) |
models | |
| (rstart − rend) | (θmb = 25′′) | N(X)total(flat) / | ||||||
| [K] | [cm−3] | [#] | [cm−2] | [cm−2] | N(X)total(gradient) | |||
| H2CO | ||||||||
| R CrA-IRS 5A | B | 18.6 | 1.0 × 10−3 | 1.0 × 1048 | 8.5 × 10−9 | 8.5 × 1013 | 1.2 × 1014 | 1.92 |
| NGC 1333-IRAS 2A | B | 20.5 | 1.6 × 10−3 | 1.1 × 1049 | 1.5 × 10−8 | 2.5 × 1014 | 3.5 × 1014 | 1.39 |
| L1551-IRS 5 | B | 20.7 | 4.87 × 10−4 | 1.8 × 1048 | 5.3 × 10−9 | 6.2 × 1013 | 8.5 × 1013 | 1.36 |
| CH3OH | ||||||||
| R CrA-IRS 5A | B | 18.6 | 6.7 × 10−4 | 6.9 × 1047 | 5.6 × 10−9 | 5.6 × 1013 | 8.0 × 1013 | 2.00 |
| NGC 1333-IRAS 2A | B | 20.5 | 3.9 × 10−3 | 2.6 × 1049 | 3.7 × 10−8 | 6.0 × 1014 | 8.5 × 1014 | 1.22 |
| L1551-IRS 5 | B | 20.7 | 3.1 × 10−4 | 1.1 × 1048 | 3.3 × 10−9 | 3.9 × 1013 | 5.4 × 1013 | 1.14 |
Notes. (a) For integration setting details see Table 2. Here rend is used as integration radius.
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