MINDS - A multi-instrument investigation into the molecule-rich JWST-MIRI spectrum of the DF Tau binary system

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Volume 689 (September 2024)

A&A, 689 (2024) A85

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Table 3

Best-fit JWST-MIRI model parameters.

Species	log₁₀(N) [cm⁻²]	T [K]	R [au]	$N_{tot}$ $\[\mathcal{N}\]$ [mol.]
H₂O #1	${19.26}_{- 0.03}^{+ 0.03}$ $\[19.26_{-0.03}^{+0.03}\]$	$920_{- 10}^{+ 10}$ $\[920_{-10}^{+10}\]$	${0.20}_{- 0.002}^{+ 0.002}$ $\[0.20_{-0.002}^{+0.002}\]$	5.3 × 10⁴⁴
H₂O #2	${18.27}_{- 0.03}^{+ 0.02}$ $\[18.27_{-0.03}^{+0.02}\]$	$490_{- 10}^{+ 10}$ $\[490_{-10}^{+10}\]$	${0.51}_{- 0.007}^{+ 0.011}$ $\[0.51_{-0.007}^{+0.011}\]$	3.4 × 10⁴⁴
H₂O #3	${17.53}_{- 0.31}^{+ 0.09}$ $\[17.53_{-0.31}^{+0.09}\]$	$180_{- 0}^{+ 10}$ $\[180_{-0}^{+10}\]$	${3.78}_{- 0.262}^{+ 1.027}$ $\[3.78_{-0.262}^{+1.027}\]$	3.4 × 10⁴⁵
CO₂	${18.78}_{- 0.06}^{+ 0.07}$ $\[18.78_{-0.06}^{+0.07}\]$	$400_{- 20}^{+ 10}$ $\[400_{-20}^{+10}\]$	${0.21}_{- 0.009}^{+ 0.011}$ $\[0.21_{-0.009}^{+0.011}\]$	1.8 × 10⁴⁴
C₂H₂	${15.03}_{- 0.11}^{+ 0.70}$ $\[15.03_{-0.11}^{+0.70}\]$	$610_{- 20}^{+ 20}$ $\[610_{-20}^{+20}\]$	${1.26}_{- 0.689}^{+ 0.171}$ $\[1.26_{-0.689}^{+0.171}\]$	1.2 × 10⁴²
HCN	${16.73}_{- 0.29}^{+ 0.22}$ $\[16.73_{-0.29}^{+0.22}\]$	$800_{- 20}^{+ 20}$ $\[800_{-20}^{+20}\]$	${0.31}_{- 0.061}^{+ 0.110}$ $\[0.31_{-0.061}^{+0.110}\]$	3.8 × 10⁴²

OH	${14.09}_{- 0.08}^{+ 0.49}$ $\[14.09_{-0.08}^{+0.49}\]$	$1880_{- 20}^{+ 20}$ $\[1880_{-20}^{+20}\]$	${3.16}_{- 1.344}^{+ 0.302}$ $\[3.16_{-1.344}^{+0.302}\]$	8.7 × 10⁴¹

Notes. While we provide the values for OH, we note that this molecule is not in LTE, and therefore the numbers do not accurately reflect the conditions of OH.

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