Simple molecules and complex chemistry in a protoplanetary disk - A JWST investigation of the highly inclined disk d216-0939

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Table 4

EMIIGMA fitting results for the 4.5–4.8 μm wavelength region.

					Combination #
Component and Fit	1	2	3	4	5	6	7	8	9	10
${N H}_{4}^{+}$ $\[\mathrm{NH}_{4}^{+}\]$ /OCN⁻ 12 K	x
pure CO 15 K	x	x				x		x		(x)
${N H}_{4}^{+}$ $\[\mathrm{NH}_{4}^{+}\]$ /OCN⁻ 80 K		x	x	x	x	x	x	x	x	x
H₂O/CO₂/CO/NH₃/CH₃OH 15K			x		x	x
C/H₂O				x	x	x
Rocha D8a H₂O/NH₃/CO 13 K							x	x	x	x
cold Rocha D8a-mantle scattering									x	x
AIC	7.44	7.39	6.89	7.55	8.91	10.81	6.79	8.81	7.20	9.18
RMSE	0.027	0.026	0.024	0.027	0.024	0.024	0.024	0.024	0.0151	0.0148

Notes. The Akaike information criterion (AIC) and root mean square error (RMSE) for various input mixtures are listed. The best fit parameters are marked in boldface. The mass ratio for the H₂O/CO₂/CO/NH₃/CH₃OH mixture is 100/6.9/1.5/0.7/0.5, in the D8a model it is 10/6/4.

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