JWST-TST High Contrast: Medium-resolution spectroscopy reveals a carbon-rich circumplanetary disk around the young accreting exoplanet Delorme 1 AB b

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Table 1

Summary of the best-fit parameter measured with different atmospheric grids.

Model	T_eff	R (R_Jup)	log(g)	[Fe/H]	C/O	f_sed	γ	T_bb	R_bb (R_Jup)	χ²
Exo-REM	$1950_{- 1}^{+ 1}$ $1950$^{+1}_{-1}$$	${5.14}_{- 0.2}^{+ 0.2}$ $5.14$^{+0.2}_{-0.2}$$	${3.00}_{- 0.01}^{+ 0.01}$ $3.00$^{+0.01}_{-0.01}$$	${2.00}_{- 0}^{+ 0}$ $2.00$^{+0}_{-0}$$	${0.25}_{- 0.01}^{+ 0.01}$ $0.25$^{+0.01}_{-0.01}$$	--	--	--	--	371.2
Exo-REM + BB	$1748_{- 3}^{+ 2}$ $1748$^{+2}_{-3}$$	${1.9}_{- 0.1}^{+ 0.1}$ $1.9$^{+0.1}_{-0.1}$$	${3.42}_{- 0.03}^{+ 0.03}$ $3.42$^{+0.03}_{-0.03}$$	${1.49}_{- 0.01}^{+ 0.01}$ $1.49$^{+0.01}_{-0.01}$$	${0.78}_{- 0.01}^{+ 0.01}$ $0.78$^{+0.01}_{-0.01}$$	--	--	$301_{- 5}^{+ 3}$ $301$^{+3}_{-5}$$	${18.9}_{- 1}^{+ 1}$ $18.9$^{+1}_{-1}$$	38.1

ATMO	$1500_{- 0.6}^{+ 0.1}$ $1500$^{+0.1}_{-0.6}$$	${2.90}_{- 0.11}^{+ 0.12}$ $2.90$^{+0.12}_{-0.11}$$	${3.59}_{- 0.05}^{+ 0.05}$ $3.59$^{+0.05}_{-0.05}$$	$- {0.60}_{- 0.01}^{+ 0.01}$ $--0.60$^{+0.01}_{-0.01}$$	${0.70}_{- 0.01}^{+ 0.01}$ $0.70$^{+0.01}_{-0.01}$$	--	${1.04}_{- 0.01}^{+ 0.01}$ $1.04$^{+0.01}_{-0.01}$$	--	--	288.7
ATMO + BB	$1860_{- 11}^{+ 11}$ $1860$^{+11}_{-11}$$	${1.66}_{- 0.07}^{+ 0.07}$ $1.66$^{+0.07}_{-0.07}$$	${2.61}_{- 0.08}^{+ 0.16}$ $2.61$^{+0.16}_{-0.08}$$	$- {0.32}_{- 0.07}^{+ 0.04}$ $--0.32$^{+0.04}_{-0.07}$$	${0.64}_{- 0.06}^{+ 0.04}$ $0.64$^{+0.04}_{-0.06}$$	--	${1.01}_{- 0.01}^{+ 0.01}$ $1.01$^{+0.01}_{-0.01}$$	$311_{- 3}^{+ 3}$ $311$^{+3}_{-3}$$	${17.79}_{- 0.7}^{+ 0.8}$ $17.79$^{+0.8}_{-0.7}$$	39.3

Sonora	$1500_{- 0.1}^{+ 0.1}$ $1500$^{+0.1}_{-0.1}$$	${2.7}_{- 0.1}^{+ 0.1}$ $2.7$^{+0.1}_{-0.1}$$	${5.5}_{- 0.01}^{+ 0.01}$ $5.5$^{+0.01}_{-0.01}$$	$- {0.2}_{- 0.02}^{+ 0.02}$ $--0.2$^{+0.02}_{-0.02}$$	--	${1.00}_{- 0.01}^{+ 0.01}$ $1.00$^{+0.01}_{-0.01}$$	--	--	--	269.8
Sonora + BB	$1509_{- 6}^{+ 8}$ $1509$^{+8}_{-6}$$	${2.4}_{- 0.1}^{+ 0.1}$ $2.4$^{+0.1}_{-0.1}$$	${5.0}_{- 0.04}^{+ 0.03}$ $5.0$^{+0.03}_{-0.04}$$	${0.43}_{- 0.03}^{+ 0.06}$ $0.43$^{+0.06}_{-0.03}$$	--	${1.28}_{- 0.24}^{+ 0.29}$ $1.28$^{+0.29}_{-0.24}$$	--	$259_{- 3}^{+ 3}$ $259$^{+3}_{-3}$$	${23.3}_{- 1}^{+ 1}$ $23.3$^{+1}_{-1}$$	59.1

BT-Settl	$1607_{1}^{+ 1}$ $1607$^{+1}_{1}$$	${2.87}_{- 0.12}^{+ 0.13}$ $2.87$^{+0.13}_{-0.12}$$	${3.00}_{- 0.01}^{+ 0.01}$ $3.00$^{+0.01}_{-0.01}$$	--	--	--	--	--	--	466.6
BT-Settl + BB	$1689_{12}^{+ 12}$ $1689$^{+12}_{12}$$	${1.98}_{- 0.09}^{+ 0.09}$ $1.98$^{+0.09}_{-0.09}$$	${5.42}_{- 0.04}^{+ 0.03}$ $5.42$^{+0.03}_{-0.04}$$	--	--	--	--	$321_{- 4}^{+ 4}$ $321$^{+4}_{-4}$$	${17.0}_{- 0.8}^{+ 0.8}$ $17.0$^{+0.8}_{-0.8}$$	58.4

Notes. The second row for each model includes a blackbody component.

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