Table 4
H2D+ and N2H+ abundances estimated with RATRAN for each core based on the JCMT observations.
| Literature | This work | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Core | Species | XIN | XINTERMEDIATE | XOUT | Authors | QE-BES | LP | SIS | Static |
| L183 | (r < 300 au) | (300 au < r < 5000 au) | (5000 au < r < 10 000 au) | α | Multiplication factor | ||||
| H2D+ | 1 × 10−10 | 2 × 10−10 | 4 × 10−11 | 2 | 0.5 | 100 | 1 | ||
| L1544 | (r < 2500 au) | n/a | (2500 au < r < 10 000 au) | β | Multiplication factor | ||||
| H2D+ | 1 × 10−9 | n/a | 5 × 10−10 | 1 | 0.3 | 60 | 0.8 | ||
| (r < 2500 au) | n/a | (2500 au < r < 10 000 au) | γ | Multiplication factor | |||||
| N2H+ | 0 | n/a | 2 × 10−10 | 20 | 0.8 | 500 | 4 | ||
| L694-2 | n/a | n/a | n/a | n/a | Abundance (const.) | ||||
| H2D+ | n/a | n/a | n/a | n/a | 4.4 × 10−10 | 5.2 × 10−11 | 2 × 10−8 | 2.5 × 10−10 | |
| L1517B | n/a | n/a | n/a | n/a | Abundance (const.) | ||||
| H2D+ | n/a | n/a | n/a | n/a | 5 × 10−11 | 1.2 × 10−11 | 5 × 10−9 | 1.5 × 10−10 | |
| L1521f | (r < 3500 au) | n/a | (3500 au < r < 10 000 au) | δ | Multiplication factor | ||||
| H2D+ | 3 × 10−10 | n/a | 6 × 10−11 | 1.3 | 0.75 | 100 | 1 | ||
| (r < 3500 au) | n/a | (3500 au < r < 10 000 au) | δ | Multiplication factor | |||||
| N2H+ | 1 × 10−10 | n/a | 2 × 10−10 | 1 | 0.3 | 15 | 1 | ||
Notes. The table contains also the initial abundance profiles adopted from literature when available for direct comparison. The first two columns of the table report the core name and the observed species. The abundance profiles of the observed species per core as retrieved by the literature are presented in Cols. 3–5. In particular, we report the inner, intermediate and outer abundances (XIN, XINTERMEDIATE and XOUT) following their corresponding shell sizes. Lastly, the resulted abundance profiles of this work and per model (QE-BES, LP, SIS, and Static) are reported in Cols. 7–10. The multiplication factor is the one applied to the abundance profiles taken from literature (when available) resulting in the best fit between the modeled and observed line intensity at the central position of the maps. For L1517B and L694-2 we report the resulted constant abundance. Authors: α Pagani et al. (2009); for 300 au < r < 5000 au, the average value of the reported abundances was adopted, β van der Tak et al. (2005), γ Caselli et al. (2002), δ Crapsi et al. (2004).
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