Table D.2
Mean column density of C18O and N2H+ and opacity of the transitions (2−1) and (1−0), respectively determined from the combined dataset for the CALYPSO sample sources.
| Source | C18O (2−1) | N2H+ (1−0) | ||||
|---|---|---|---|---|---|---|
| Tex | Nmean | τmean | Tex | Nmean | τmean | |
| (K) | (1015 cm−2) | (K) | (1013 cm−2) | |||
| L1448-2A | 39 | 13.4 | 0.22 | 20 | 2.2 | 0.09 |
| L1448-NB | 33 | 17.2 | 0.37 | 19 | 3.3 | 0.16 |
| L1448-C | 61 | 20.3 | 0.18 | 26 | 2.1 | 0.06 |
| IRAS2A | 58 | 23.5 | 0.17 | 33 | 4.3 | 0.06 |
| SVS13-B | 40 | 13.4 | 0.17 | 24 | 3.9 | 0.10 |
| IRAS4A | 33 | 16.5 | 0.30 | 24 | 0.6(⋆) | 0.03(⋆) |
| IRAS4B | 39 | 9.5 | 0.14 | 25 | 0.4(⋆) | 0.03(⋆) |
| IRAM04191 | 20 | 3.5 | 0.17 | 10 | 0.6 | 0.10 |
| L1521F | 20 | 3.6 | 0.22 | 10 | 1.5 | 0.33 |
| L1527 | 37 | 5.4 | 0.13 | 19 | 0.7 | 0.05 |
| L1157 | 38 | 8.1 | 0.19 | 25 | 2.2 | 0.05 |
| GF9-2 | 43 | 4.2 | 0.09 | 21 | 1.2 | 0.05 |
Notes. The mean column density of C18O and N2H+ and the opacity of the transitions (2−1) and (1−0), respectively, are calculated within the central 5′′ × 5′′ and 20′′ × 20′′ respectively, from the combined datasets. The N2H+ column density was determined from the isolated hyperfine component (101 − 012). (⋆) For IRAS4A and IRAS4B, the calculations were made from the PdBI datasets for the N2H+ emission.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.