Open Access
Table 2
Absorption peak, band strength, and column densities of ices towards objects.
| H2O | HDO | 12CO2 | CO | XCN | |
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| Absorption peak [μm] | 3.05 | 4.07 | 4.27 | 4.67 | 4.62 |
| Band strength 10-17 cm molecule-1 | 20 | 4.3 | 7.6 | see text | 5.0 |
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| Column density | 1017 [cm-2] | 1017 [cm-2] | 1017 [cm-2] | 1017 [cm-2] | 1017 [cm-2] |
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| L1527(04368+2557) | 47 ± 13 | 0.96 (2.0%)a | 10 ± 1.1 (21%) | 18 ± 2.6 (38%) | 1.5 ± 0.22 (3.2%) |
| IRC-L1041-2 | 39 ± 6.6 | 3.7 (9.5%) | 9.4 ± 1.6 (24%) | 18 ± 4.0 (46%) | 2.5 ± 0.48 (6.4%) |
| IRAS 04302+2247 | 24 ± 0.82 | 5.3 (22%) | 6.8 ± 0.64 (28%) | 3.1 ± 0.55 (13%) | 0.53 ± 0.064 (2.2%) |
| ASR 41 | 7.8 ± 2.2 | – | – | – | – |
| 2MASSJ 1628137-243139 | 6.7 ± 2.6 | – | – | – | – |
| HV Tau | 5.4 ± 0.23 | 1.0 (19%) | 0.72 ± 0.11 (13%) | – | – |
| HK Tau | 2.1 ± 0.23b | – | 0.9 ± 0.11 (43%) | – | – |
| UY Aur | 0.61 ± 0.20 | – | 0.54 ± 0.086 (89%) | – | |
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