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Table 1
Maximum possible fraction of total disc mass for selected species Xsp assuming all carbon or oxygen are locked into that species.
| Species | msp | ϵ | Xsp | ⟨ Xsp ⟩ | σ |
| [mH] | w.r.t. H | maximum | EV | ||
|
|
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| O | 16 | 2.90 (–4) | 3.5 (–3) | 2.3 (–3) | 1.2(–3) |
| only 10-5 < Mdisc ≤ 10-6 M⊙ | 3.4 (–3) | 2.2 (–4) | |||
| only 10-1 < Mdisc ≤ 10-2 M⊙ | 1.2 (–3) | 7.1 (–4) | |||
|
|
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| C+ | 12 | 1.30 (–4) | 1.2 (–3) | 4.5 (–4) | 5.0(–4) |
| only 10-5 < Mdisc ≤ 10-6 M⊙ | 1.0 (–3) | 2.5 (–4) | |||
| only 10-1 < Mdisc ≤ 10-2 M⊙ | 9.4 (–6) | 2.3 (–5) | |||
|
|
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| CO | 28 | 1.30 (–4) | 2.8 (–3) | 7.9 (–4) | 8.5(–4) |
| only 10-5 < Mdisc ≤ 10-6 M⊙ | 1.4 (–3) | 2.9 (–3) | |||
| only 10-1 < Mdisc ≤ 10-2 M⊙ | 1.3 (–3) | 8.9 (–4) | |||
Notes. Also given are the species mass (msp), abundance (ϵ) and the expected values from the statistical distribution of gas mass fractions.
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