Table 6
Oxygen and iron column densities, abundances, and depletions.
| Oxygen | ||||||
|---|---|---|---|---|---|---|
| Source | Ngas 1018 cm−2 | Ndust 1017 cm−2 | Agas 10−4 H−1 | Adust 10−4 H−1 | A/A⊙ | δX |
| Cygnus X-2 | 1.1 ± 0.1 | 2.5 ± 0.3 | 6.4 ± 0.6 | 1.5 ± 0.2 | 1.3 ± 0.1 | 0.18 ± 0.02 |
| XTE J1817-330 | 1.06 ± 0.06 | 2.7 ± 0.4 | 7.1 ± 0.4 | 1.6 ± 0.3 | 1.4 ± 0.1 | 0.18 ± 0.03 |
| Ser X-1 | 3.4 ± 0.1 | 5 ± 2 | 6.2 ± 0.2 | 1.0 ± 0.4 | 1.20 ± 0.07 | 0.13 ± 0.05 |
| SWIFT J1910.2-0546 | 2.3 ± 0.1 | 4.8 ± 1.7 | 7.30 ± 0.03 | 1.5 ± 0.6 | 1.4 ± 0.1 | 0.17 ± 0.06 |
| GX 9+9 | 1.6 ± 0.1 | 2.2 ± 0.4 | 7.9 ± 0.5 | 1.1 ± 0.3 | 1.45 ± 0.12 | 0.12 ± 0.02 |
| Iron | ||||||
|---|---|---|---|---|---|---|
| Source | Ngas 1018 cm−2 | Ndust 1017 cm−2 | Agas 10−6 H−1 | Adust 10−5 H−1 | A/A⊙ | δX |
| Cygnus X-2 | 0.004 ± 0.001 | 0.4 ± 0.1 | 2.6 ± 0.7 | 2.4 ± 0.5 | 0.79 ± 0.16 | 0.98 ± 0.02 |
| XTE J1817-330 | 0.007 ± 0.002 | 0.4 ± 0.1 | 2 ± 1 | 2.9 ± 0.5 | 1.02 ± 0.16 | 0.93 ± 0.16 |
| Ser X-1 | 0.003 ± 0.002 | 1.20 ± 0.05 | 0.4 ± 0.7 | 2 ± 1 | 0.8 ± 0.3 | 0.98 ± 0.03 |
| SWIFT J1910.2-0546 | 0.010 ± 0.004 | 0.7 ± 0.3 | 3.3 ± 1.3 | 2.3 ± 0.1 | 0.8 ± 0.3 | 0.87 ± 0.08 |
| GX 9+9 | <0.005 | 0.5 ± 0.1 | <2.5 | 2.5 ± 0.6 | 0.8 ± 0.1 | >0.98 |
Notes. Ngas and Ndust correspond to the total column density of gas and dust respectively for each element (O and Fe). Agas and Adust indicate the abundances of oxygen and iron in gas and dust (with respect to hydrogen). A/A⊙ is the total abundance ratio (gas + dust) in proto-solar abundance units of Lodders & Palme (2009) and δX is the depletion of the X element from the gas phase, i.e. the fraction of that element locked up in dust. The abundances and depletions were calculated using the values from the best-fit model.
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