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Table 3
Results of the spectral fit of the hyperfine components performed using the GILDAS-CLASS tool: sum of the opacities, line width, and peak velocity.
| Species | τ | FWHM | Vpeak |
|---|---|---|---|
| (km s−1) | (km s−1) | ||
| L1489-IRS | |||
| C15N | ≤0.1 | 1.1 (0.3) | +7.59 (0.16) |
| CCD | ≤0.1 | 1.7 (0.4) | +7.75 (0.21) |
| DCN | 1.0 (0.1) | 1.5 (0.3) | +7.75 (0.12) |
| B5-IRS1 | |||
| 13CN | ≤0.1 | 0.8 (0.1) | +10.10 (0.01) |
| 13CS | 2.5 (2.3) | 0.6 (0.1) | +9.94 (0.01) |
| CCD | ≤0.4 | 0.8 (0.1) | +10.10 (0.01) |
| DCN | ≤0.1 | 0.9 (0.1) | +10.20 (0.01) |
| N2D+ | ≤0.1 | 0.6 (0.1) | +10.20 (0.01) |
| L1455-IRS1 | |||
| 13CN | 4.4 (2.9) | 0.8 (0.1) | +4.83 (0.01) |
| 13CS | ≤0.1 | 1.6 (0.1) | +4.66 (0.01) |
| CCD | ≤0.1 | 0.6 (0.1) | +4.74 (0.01) |
| DCN | ≤0.1 | 1.4 (0.1) | +4.43 (0.01) |
| N2D+ | ≤0.2 | 0.6 (0.1) | +4.79 (0.01) |
| L1551-IRS5 | |||
| 13CN | 2.8 (1.0) | 1.0 (0.1) | +6.33 (0.01) |
| C15N | 1.0 (0.5) | 0.6 (0.1) | +5.97 (0.02) |
| 13CS | ≤0.1 | 1.4 (0.1) | +6.51 (0.03) |
| CCD | ≤0.1 | 1.1 (0.1) | +6.38 (0.01) |
| DCN | ≤0.1 | 1.3 (0.1) | +6.29 (0.01) |
| N2D+ | 2.6 (0.6) | 0.5 (0.1) | +6.13 (0.01) |
| H2C33S | ≤0.1 | 0.8 (0.2) | +6.78 (0.09) |
| c-C3H | ≤0.8 | 0.9 (0.1) | +6.89 (0.01) |
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