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Table 3.
Inferred elemental abundances and uncertainties.
| Species | System | |Δν| | 3D | ⟨3D⟩ | ATMO | MARCS | HM74 | σ(atmos.) | σ(trend) | σ(comp.) | σ(stat.) | σ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Carbon | ||||||||||||
| C2 | Swan | 0 | 8.455 | 8.473 | 8.438 | 8.433 | 8.520 | 0.018 | 0.003 | 0.006 | 0.005 | 0.020 |
| C2 | Swan | 1 | 8.474 | 8.494 | 8.459 | 8.454 | 8.540 | 0.018 | 0.004 | 0.006 | 0.010 | 0.022 |
| ⟨C2⟩ | 8.464 | 8.483 | 8.448 | 8.443 | 8.530 | 0.018 | 0.003 | 0.006 | 0.005 | 0.020 | ||
| CH | A−X | 0 | 8.459 | 8.471 | 8.404 | 8.393 | 8.555 | 0.031 | 0.015 | 0.005 | 0.011 | 0.037 |
| CH | X−X | 1 | 8.470 | 8.503 | 8.444 | 8.438 | 8.573 | 0.028 | 0.017 | 0.006 | 0.003 | 0.033 |
| ⟨CH⟩ | 8.465 | 8.489 | 8.427 | 8.420 | 8.565 | 0.029 | 0.011 | 0.006 | 0.005 | 0.032 | ||
| 12C16O | X−X | 1 | 8.487 | 8.653 | 8.617 | 8.606 | 8.683 | 0.043 | 0.021 | 0.031 | 0.004 | 0.057 |
| 12C16O | X−X | 2 | 8.467 | 8.681 | 8.623 | 8.609 | 8.743 | 0.059 | 0.016 | 0.029 | 0.001 | 0.068 |
| ⟨12C16O⟩ | 8.479 | 8.673 | 8.621 | 8.608 | 8.723 | 0.050 | 0.014 | 0.030 | 0.002 | 0.060 | ||
| Final | 8.47 | 8.49 | 8.45 | 8.45 | 8.55 | 0.02 | 0.00 | 0.01 | 0.00 | 0.02 | ||
| Nitrogen | ||||||||||||
| NH | X−X | 0 | 7.881 | 8.032 | 8.038 | 8.021 | 8.079 | 0.043 | 0.036 | 0.000 | 0.006 | 0.057 |
| NH | X−X | 1 | 7.921 | 7.988 | 7.922 | 7.914 | 8.056 | 0.032 | 0.008 | 0.001 | 0.005 | 0.033 |
| ⟨NH⟩ | 7.911 | 8.002 | 7.960 | 7.951 | 8.065 | 0.035 | 0.011 | 0.000 | 0.004 | 0.037 | ||
| CN | A−X | 0 | 7.867 | 7.964 | 7.933 | 7.927 | 8.016 | 0.031 | 0.008 | 0.030 | 0.003 | 0.044 |
| ⟨CN⟩ | 7.867 | 7.964 | 7.933 | 7.927 | 8.016 | 0.031 | 0.008 | 0.030 | 0.003 | 0.044 | ||
| Final | 7.89 | 7.99 | 7.95 | 7.94 | 8.04 | 0.03 | 0.01 | 0.01 | 0.00 | 0.04 | ||
| Oxygen | ||||||||||||
| OH | X−X | 0 | 8.690 | 8.792 | 8.795 | 8.782 | 8.837 | 0.031 | 0.041 | 0.005 | 0.001 | 0.052 |
| OH | X−X | 1 | 8.707 | 8.800 | 8.737 | 8.728 | 8.884 | 0.039 | 0.008 | 0.004 | 0.002 | 0.040 |
| OH | X−X | 2 | 8.690 | 8.756 | 8.685 | 8.673 | 8.848 | 0.038 | 0.066 | 0.003 | 0.012 | 0.077 |
| ⟨OH⟩ | 8.699 | 8.791 | 8.756 | 8.751 | 8.852 | 0.036 | 0.017 | 0.004 | 0.002 | 0.040 | ||
| Final | 8.70 | 8.79 | 8.76 | 8.75 | 8.85 | 0.04 | 0.02 | 0.00 | 0.00 | 0.04 | ||
Notes. Abundances are shown for different groups and species, for all of the models considered in the present analysis. Also shown is the breakdown of uncertainties for the 3D model, with the overall uncertainty given in the final column.
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