MINDS: The DR Tau disk - II. Probing the hot and cold H2O reservoirs in the JWST-MIRI spectrum

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Volume 689 (September 2024)

A&A, 689 (2024) A330

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Table 2

Best-fit parameters for the multiple component slab model fits, including radial and vertical temperature gradients.

Component	T (K)	log₁₀ (N)^(α)	R_em (au)	$N$ $\[\mathcal{N}\]$
Approach I
1	$806_{- 154}^{+ 289}$ $\[806_{-154}^{+289}\]$	${19.2}_{- 0.5}^{+ 1.5}$ $\[19.2_{-0.5}^{+1.5}\]$	0.35±0.15	1.40 × 10⁴⁵
2	$468_{- 85}^{+ 79}$ $\[468_{-85}^{+79}\]$	${18.5}_{- 0.4}^{+ 0.9}$ $\[18.5_{-0.4}^{+0.9}\]$	${1.18}_{- 0.18}^{+ 0.27}$ $\[1.18_{-0.18}^{+0.27}\]$	3.03 × 10⁴⁵
3	$181_{- 43}^{+ 36}$ $\[181_{-43}^{+36}\]$	${17.9}_{- 0.7}^{+ 2.2}$ $\[17.9_{-0.7}^{+2.2}\]$	${6.45}_{- 2.64}^{+ 2.26}$ $\[6.45_{-2.64}^{+2.26}\]$	2.30 × 10⁴⁶

Approach II
1	$796_{- 141}^{+ 268}$ $\[796_{-141}^{+268}\]$	${19.2}_{- 0.5}^{+ 1.4}$ $\[19.2_{-0.5}^{+1.4}\]$	${0.36}_{- 0.15}^{+ 0.14}$ $\[0.36_{-0.15}^{+0.14}\]$	1.50 × 10⁴⁵
2	$466_{- 84}^{+ 77}$ $\[466_{-84}^{+77}\]$	${18.5}_{- 0.4}^{+ 0.9}$ $\[18.5_{-0.4}^{+0.9}\]$	${1.14}_{- 0.17}^{+ 0.24}$ $\[1.14_{-0.17}^{+0.24}\]$	2.78 × 10⁴⁵
3	$184_{- 42}^{+ 29}$ $\[184_{-42}^{+29}\]$	${17.6}_{- 0.7}^{+ 2.2}$ $\[17.6_{-0.7}^{+2.2}\]$	${7.98}_{- 3.52}^{+ 4.49}$ $\[7.98_{-3.52}^{+4.49}\]$	1.68 × 10⁴⁶

Approach III
1	$798_{- 141}^{+ 281}$ $\[798_{-141}^{+281}\]$	${19.2}_{- 0.5}^{+ 1.5}$ $\[19.2_{-0.5}^{+1.5}\]$	0.35±0.15	1.50 × 10⁴⁵
2	$467_{- 81}^{+ 76}$ $\[467_{-81}^{+76}\]$	${18.5}_{- 0.4}^{+ 0.9}$ $\[18.5_{-0.4}^{+0.9}\]$	${1.20}_{- 0.17}^{+ 0.26}$ $\[1.20_{-0.17}^{+0.26}\]$	3.03 × 10⁴⁵
3	$184_{- 43}^{+ 30}$ $\[184_{-43}^{+30}\]$	${17.6}_{- 0.7}^{+ 2.2}$ $\[17.6_{-0.7}^{+2.2}\]$	${8.08}_{- 3.42}^{+ 4.43}$ $\[8.08_{-3.42}^{+4.43}\]$	1.70 × 10⁴⁶

Approach III – two components
1	$712_{- 100}^{+ 130}$ $\[712_{-100}^{+130}\]$	${19.1}_{- 0.3}^{+ 0.8}$ $\[19.1_{-0.3}^{+0.8}\]$	${0.50}_{- 0.12}^{+ 0.14}$ $\[0.50_{-0.12}^{+0.14}\]$	2.02 × 10⁴⁵
2	$341_{- 78}^{+ 74}$ $\[341_{-78}^{+74}\]$	${18.5}_{- 0.4}^{+ 1.0}$ $\[18.5_{-0.4}^{+1.0}\]$	${1.83}_{- 0.32}^{+ 0.54}$ $\[1.83_{-0.32}^{+0.54}\]$	7.97 × 10⁴⁵

Notes. ^(α) N is given in units of cm⁻².

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