Open Access
Table 3
Observed column densities, N (cm−2), of HNCS and HSCN in different types of sources.
| Source | Source type | TK (K) | NHNCS (cm−2) | NHSCN (cm−2) | NHNCS/NHSCN | References |
|---|---|---|---|---|---|---|
| TMC-1 | Starless core | (8.3 ± 4.4) × 1010 | (6.4 ± 2.1) × 1010 | 1.3 ± 0.7 | Adande et al. (2010) | |
| 9.1 | (3.2 ± 0.1) × 1011 | (8.3 ± 0.4) × 1011 | 0.39 ± 0.25 | Cernicharo et al. (2024) | ||
| B 213 C16 | Starless core | ≲10 | − | (5.7 ± 2.8) × 1010 | − | Moral-Almansa et al. (in prep.) |
| L 1544 | Pre-stellar core | 7.5 | − | (6.0 ± 0.2) × 1010 | − | Vastel et al. (2018), |
| Bianchi et al. (2023) | ||||||
| L483 | Class 0 | 9.5 | (2.1 ± 1.8) × 1011 | (1.1 ± 0.4) × 1011 | 1.9 ± 0.5 | Anglada et al. (1997), |
| Agúndez et al. (2019) | ||||||
| IRAS 4A | Class 0 | 40 | <7.1 × 1011 | (1.5 ± 0.7) × 1011 | <4.7 | Fernández-Ruiz et al. (in prep.), |
| Koumpia et al. (2016), | ||||||
| Quitián-Lara et al. (2024) | ||||||
| B 335 | Class 0 | 15 | <4.7 × 1012 | (1.0 ± 0.5) × 1012 | <4.7 | Shirley et al. (2011), |
| Esplugues et al. (2023) | ||||||
| B1-a | Class I | 15 | <1.45 × 1012 | (1.1 ± 0.6) × 1012 | <1.3 | This work |
| Sgr B2 | High-mass Star-forming region | ≳150 | (0.8–4.7) × 1013 | (0.2–1.3) × 1013 | 2.2–7.0 | Bonfand et al. (2019), Adande et al. (2010) |
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