Revisiting the dynamical masses of the transiting planets in the young AU Mic system: Potential AU Mic b inflation at ~20 Myr

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Table 3

Stellar parameters of AU Mic.

Parameter	Value	Reference
Name	HD 197481	Can18
	CD-31 17815	Tho92
	AUMic	Kuk72
α (J2016)	20:45:09.9	Gaia DR3
δ (J2016)	−31:20:33.0	Gaia DR3
G (mag)	7.843 ± 0.003	Gaia DR3
J (mag)	5.436 ± 0.017	2MASS
Sp. type	M1V	Ken89
ϖ (mas)	102.94 ± 0.02	Gaia DR3
d (pc)	9.7144 ± 0.0018	Gaia DR3
L_★ (L_⊙)	0.1053 ± 0.0014	This work
R_★ (R_⊙)	0.862 ± 0.052	Gal22
T_eff (K)	$3540_{- 110}^{+ 120}$ $3540_{ - 110}^{ + 120}$	This work
M_★ (M_⊙)	${0.635}_{- 0.070}^{+ 0.040}$ $0.635_{ - 0.070}^{ + 0.040}$	This work
log 𝑔 (cgs)	${4.37}_{- 0.10}^{+ 0.08}$ $4.37_{ - 0.10}^{ + 0.08}$	This work
[Fe/H] (dex)	0 01 ± 0 06	Mar21
υ sin i (km s⁻¹)	9 2±0 2	Koc20
P_rot (d)	4.86 ± 0.01	Pla20
Kinematic group	β Pictoris	Bar99
Age (Myr)	$19_{- 6}^{+ 10}$ $19_{ - 6}^{ + 10}$	This work

Notes. Can18: Cannon & Pickering (1918); Tho92: Thome (1892); Kuk72: Kukarkin et al. (1972); Gaia DR3: Gaia Collaboration (2016, 2023); 2MASS: Skrutskie et al. (2006); Ken89: Keenan & McNeil (1989); Gal22: Gallenne et al. (2022); Mar21: Marfil et al. (2021); Koc20: Kochukhov & Reiners (2020); Pla20: Plavchan et al. (2020); Bar99: Barrado y Navascués et al. (1999).

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