Table 2
1σ confidence level (range) from the Non-LTE LVG Analysis of the SO, SO2, and H2CS lines towards SVS13-A as imaged with NOEMA.
| Species | Ntot |  |
Tkin | Size |  (a) |
|---|---|---|---|---|---|
| (cm−2) | (cm−3) | (K) | (arcsec) | ||
| SO | 0.2–3 × 1017 | ≥6 × 106 | ≥150 K | 0.′′2–0.′′5 | 7 × 10−9–1 × 10−7 |
| SO2 | 0.3–3 × 1018 | ≥5 × 106 | 100–300 | 0.′′1–0.′′3 | 1–10 × 10−7 |
| H2CS | 0.7–2 × 1015 | ≥105 | ≥50 K | 0.′′2–0.′′8 | 2–7 × 10−10 |
| Ntot |  |
Trot | Size |  (a) |
|
| (cm−2) | (cm−3) | (K) | (arcsec) | ||
| OCS (b) | 1–2 × 1015 | – | 70–170 | 0.′′3 (b) | 3–7 × 10−10 |
| CS (c) | 0.8–17 × 1018 | – | 37.5 (d)–300 | 0.′′3 (c) | 0.3–6 × 10−6 |
| NS (c) | 1–6 × 1015 | – | 37.5 (d)–300 | 0.′′3 (c) | 0.2–3 × 10−9 |
| NS+ (c) | ≤8 × 1014 | – | 37.5 (d)–300 | 0.′′3 (c) | ≤3 × 10−10 |
| H2S (c),(e) | 0.5–1 × 1018 | – | 37.5 (d)–300 | 0.′′3 (c) | 2–4 × 10−7 |
Notes. The OCS, CS, and NS column densities, derived assuming LTE conditions, are also reported. The last row with H2S, is based on IRAM 30-m data at 1.4 mm. The last column is for the abundance with respect to H2. (a) We assume
= 3 × 1024 cm−2 (Chen et al. 2009). (b)Estimate derived using the RD approach, and assuming a source size of 0.′′3 following the SO, SO2, and H2CS LVG analysis. (c) Estimates derived using one line, and assuming: (i) a source size of 0.′′3, and a temperature in the 37.5–300 K range (from LVG analysis of SO, SO2, and H2CS). For CS, we took into account the line opacity of 14 derived from the comparison with the emission of C34 S and C33 S. (d) For Trot we conservatively used a lower limit of 37.5 K, according to the partition function tabulated in the Jet Propulsion Laboratory (JPL, Pickett et al. 1998) database. (e) Estimated based on the 22,0 –21,1 line observed with a HPBW = 11′′ using the IRAM 30-m antenna (see Sect. 6.4).
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