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Table 3
OH and H2O abundances and their ratios in line-of-sight clouds towards W49N and W51.
| W49N υlsr intervals [km s-1] | W51 υlsr intervals [km s-1] | ||||||||
|
|
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| (30, 37) | (37, 44) | (44, 49) | (49, 54) | (54, 72) | (−1, 11) | (11, 16)(c) | (43, 50) | ||
|
|
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| NOH | [1013 cm-2] | 7.1(0.5) | 11.3(6.3) | 1.2(0.2) | 1.5(0.3) | 18.1(1.3) | 6.4(0.9) | − | 3.1(0.6) |
|
[1013 cm-2] | 2.3(0.1) | 6.2(0.6) | 0.1(0.05) | 1.5(0.07) | 11.6(0.4) | 2.6(0.1) | 0.23(0.05) | 2.5(0.1) |
|
[1020 cm-2] | 5.9(1.9) | 6.6(2.0) | 0.9(0.03) | 3.2(0.1) | 22.6(3.7) | 4.3(0.1) | 0.6(0.03) | 2.6(0.8) |
| [OH] /[H2] | [10-8] | 12.0(4.0) | 17(11) | 13.2(2.5) | 4.5(0.9) | 8.0(1.4) | 15(2.1) | − | 11.9(4.3) |
| [H2O] /[H2] | [10-8] | 3.9(1.3) | 9.4(3.0) | 1.1(0.6) | 4.7(0.3) | 5.1(0.9) | 6.0(0.3) | 3.8(0.9) | 9.6(3.0) |
| [H2O] /[OH] | 0.32(0.03) | 0.55(0.31) | 0.08(0.04) | 1.03(0.20) | 0.64(0.05) | 0.40(0.06) | − | 0.81(0.16) | |
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