A JWST/MIRI view of κ Andromedae b: Refining its mass, age, and physical parameters

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Volume 702 (October 2025)

A&A, 702 (2025) A4

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Table 8

Age and mass estimates of κ And b using the evolutionary tracks and the atmospheric model fit results.

			Grid Track

Evolut.	T_eff–log(g)		T_eff–radius		Radius–log(g)
Track	Age	Mass	Age	Mass	Age	Mass
ATMO	$60_{- 16}^{+ 16}$ $\[60_{-16}^{+16}\]$	$16_{- 3}^{+ 3}$ $\[16_{-3}^{+3}\]$	$59_{- 16}^{+ 16}$ $\[59_{-16}^{+16}\]$	$14_{- 3}^{+ 3}$ $\[14_{-3}^{+3}\]$	$51_{- 15}^{+ 14}$ $\[51_{-15}^{+14}\]$	$17_{- 6}^{+ 5}$ $\[17_{-6}^{+5}\]$
S08-nc	$58_{- 14}^{+ 14}$ $\[58_{-14}^{+14}\]$	$19_{- 4}^{+ 3}$ $\[19_{-4}^{+3}\]$	$57_{- 14}^{+ 14}$ $\[57_{-14}^{+14}\]$	$17_{- 3}^{+ 3}$ $\[17_{-3}^{+3}\]$	$53_{- 16}^{+ 15}$ $\[53_{-16}^{+15}\]$	$19_{- 4}^{+ 4}$ $\[19_{-4}^{+4}\]$
S08-Hy	$44_{- 6}^{+ 5}$ $\[44_{-6}^{+5}\]$	$19_{- 3}^{+ 3}$ $\[19_{-3}^{+3}\]$	$49_{- 12}^{+ 12}$ $\[49_{-12}^{+12}\]$	$20_{- 5}^{+ 5}$ $\[20_{-5}^{+5}\]$	$56_{- 12}^{+ 12}$ $\[56_{-12}^{+12}\]$	$18_{- 3}^{+ 2}$ $\[18_{-3}^{+2}\]$
SA+0.0	$49_{- 11}^{+ 12}$ $\[49_{-11}^{+12}\]$	$17_{- 1}^{+ 1}$ $\[17_{-1}^{+1}\]$	$44_{- 12}^{+ 12}$ $\[44_{-12}^{+12}\]$	$16_{- 2}^{+ 2}$ $\[16_{-2}^{+2}\]$	$40_{- 7}^{+ 8}$ $\[40_{-7}^{+8}\]$	$18_{- 1}^{+ 1}$ $\[18_{-1}^{+1}\]$

Cloud-free	$59_{- 11}^{+ 11}$ $\[59_{-11}^{+11}\]$	$17_{- 2}^{+ 2}$ $\[17_{-2}^{+2}\]$	$58_{- 11}^{+ 11}$ $\[58_{-11}^{+11}\]$	$16_{- 2}^{+ 2}$ $\[16_{-2}^{+2}\]$	$52_{- 11}^{+ 11}$ $\[52_{-11}^{+11}\]$	$18_{- 4}^{+ 3}$ $\[18_{-4}^{+3}\]$
Cloudy	$47_{- 7}^{+ 7}$ $\[\boldsymbol{47}_{-7}^{+7}\]$ ^a	$17_{- 2}^{+ 2}$ $\[17_{-2}^{+2}\]$	$47_{- 8}^{+ 8}$ $\[47_{-8}^{+8}\]$	$17_{- 3}^{+ 3}$ $\[17_{-3}^{+3}\]$	$48_{- 7}^{+ 7}$ $\[48_{-7}^{+7}\]$	$19_{- 2}^{+ 2}$ $\[19_{-2}^{+2}\]$

Notes. Age in Myr and mass in M_Jup. ATMO to ATMO-ceq, S08-nc refers to Saumon 2008 no-clouds, S08-Hy to Saumon 2008 Hybrid, and SA+0.0 to Sonora-solar. ^(a)This corresponds to the finally adopted age estimate.

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