A new atmospheric characterization of the sub-stellar companion HR 2562 B with JWST/MIRI observations

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Volume 689 (September 2024)

A&A, 689 (2024) A185

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Table 7

Summary of the atmospheric and physical properties of HR 2562 B.

Data	T_eff	Mass	Radius	log (g)	log(L/L_⊙)
	(K)	(M_Jup)	(R_Jup)
Konopacky et al. (2016)	1200 ± 100	30 ± 15	1.11 ± 0.11	4.70 ± 0.32	−4.62 ± 0.12
Mesa et al. (2018)	1100 ± 200	32 ± 14	−	4.75 ± 0.41	−
Sutlieff et al. (2021)	[1200–1700]	29 ± 15	[0.56–0.89]	[4–5]	[−4.87 to −4.60]
Zhang et al. (2023)	−	≤ 18.5	−	−	−
This work – ATMO 10 M_Jup prior	$1284_{- 11}^{+ 12}$ $\[1284_{-11}^{+12}\]$	$10_{- 1}^{+ 1}$ $\[10_{-1}^{+1}\]$	${0.90}_{- 0.02}^{+ 0.02}$ $\[0.90_{-0.02}^{+0.02}\]$	${4.47}_{- 0.08}^{+ 0.03}$ $\[4.47_{-0.08}^{+0.03}\]$	$- {4.68}_{- 0.01}^{+ 0.01}$ $\[-4.68_{-0.01}^{+0.01}\]$
This work – ATMO no prior	$1255_{- 13}^{+ 14}$ $\[1255_{-13}^{+14}\]$	$14_{- 2}^{+ 2}$ $\[14_{-2}^{+2}\]$	${0.92}_{- 0.02}^{+ 0.02}$ $\[0.92_{-0.02}^{+0.02}\]$	${4.59}_{- 0.05}^{+ 0.05}$ $\[4.59_{-0.05}^{+0.05}\]$	$- {4.69}_{- 0.01}^{+ 0.01}$ $\[-4.69_{-0.01}^{+0.01}\]$
This work – Exo-REM no prior	$1252_{- 25}^{+ 25}$ $\[1252_{-25}^{+25}\]$	$28_{- 11}^{+ 11}$ $\[28_{-11}^{+11}\]$	${1.04}_{- 0.10}^{+ 0.10}$ $\[1.04_{-0.10}^{+0.10}\]$	${4.80}_{- 0.25}^{+ 0.25}$ $\[4.80_{-0.25}^{+0.25}\]$	$- {4.59}_{- 0.09}^{+ 0.09}$ $\[-4.59_{-0.09}^{+0.09}\]$

Notes. In both cases, ATMO and Exo-REM, the full SED were used in the fitting. Note that in the case of Zhang et al. (2023), we also have a most probable mass of 10 M_Jup.

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