Fractional deviations in key volatiles between different simulations using full chemistry at R = 1, 10, and 30 AU with respect to the reference model (the abundances for which are given in the column labelled “Mol. low ion.”).
|Radial distance||Species||Abundance||Fractional deviation|
|Mol. low ion.||Mol. high ion.||Atom. low ion.||Atom. high ion.|
|R = 1 AU||Gas|
|H2O||2.2 × 10-6||1.03||0.5||0|
|CO||6.4 × 10-5||1.52||2.5||2.4|
|CO2||5.8 × 10-5||0.9||0.26||0.53|
|CH4||1.9 × 10-5||0.74||0||0|
|H2O||3.0 × 10-4||1||0||0|
|R = 10 AU||Gas|
|CO||5.3 × 10-5||0.23||0.95||1.31|
|CH4||1.6 × 10-5||0.02||0||0|
|H2O||3.0 × 10-4||0.83||0.04||0.04|
|CO2||6.3 × 10-5||1.79||1.73||1.46|
|R = 30 AU||Gas|
|CO||1.2 × 10-6||0.01||0.53||0.02|
|H2O||3.0 × 10-4||1.14||1||1.22|
|CO||4.1 × 10-5||0.01||0.5||0.02|
|CO2||6.0 × 10-5||0.83||1.04||0.84|
|CH4||1.8 × 10-5||1.67||1.71||2.36|
Notes. Formula for calculating fractional deviations: deviation = abundance(comparison model)/abundance(reference model). The reference model, “Mol. low ion.”, is that for which the initial abundances are mainly preserved throughout the midplane. In all subsequent column labels, “Mol” and “Atom” refer to molecular and atomic initial abundances, and “low” and “high” refer to a low assumed ionisation rate (SLRs only) and a high ionisation rate (SLRs and CRs), respectively.
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