Unveiling the internal structure and formation history of the three planets transiting HIP 29442 (TOI-469) with CHEOPS

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Volume 688 (August 2024)

A&A, 688 (2024) A223

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Table B.6

Median and one-sigma errors for the posterior distributions of the internal structure modelling for HIP 29442 b, c, and d using the previous version of our internal structure model described in Section 4.1.

	HIP 29442 b	HIP 29442 c	HIP 29442 d
w_core [%]	${13.8}_{- 8.11}^{+ 8.22}$ $\[13.8_{-8.11}^{+8.22}\]$	${17.7}_{- 10.3}^{+ 9.5}$ $\[17.7_{-10.3}^{+9.5}\]$	${17.9}_{- 10.3}^{+ 9.6}$ $\[17.9_{-10.3}^{+9.6}\]$
w_mantle [%]	${59.4}_{- 13.4}^{+ 14.3}$ $\[59.4_{-13.4}^{+14.3}\]$	${75.5}_{- 9.4}^{+ 10.9}$ $\[75.5_{-9.4}^{+10.9}\]$	${78.3}_{- 9.7}^{+ 10.6}$ $\[78.3_{-9.7}^{+10.6}\]$
w_water [%]	${22.4}_{- 15.6}^{+ 17.3}$ $\[22.4_{-15.6}^{+17.3}\]$	${5.7}_{- 3.8}^{+ 5.6}$ $\[5.7_{-3.8}^{+5.6}\]$	${2.9}_{- 2.1}^{+ 3.8}$ $\[2.9_{-2.1}^{+3.8}\]$
w_H/He [%]	${3.0}_{- 0.6}^{+ 0.8}$ $\[3.0_{-0.6}^{+0.8}\]$	( ${1.7}_{- 1.5}^{+ 10.7}$ $\[1.7_{-1.5}^{+10.7}\]$ ) 10⁻⁷	( ${1.3}_{- 1.1}^{+ 7.0}$ $\[1.3_{-1.1}^{+7.0}\]$ ) 10⁻⁷

x_Fe,core [%]	${90.3}_{- 6.3}^{+ 6.6}$ $\[90.3_{-6.3}^{+6.6}\]$	${90.3}_{- 6.4}^{+ 6.5}$ $\[90.3_{-6.4}^{+6.5}\]$	${90.4}_{- 6.4}^{+ 6.5}$ $\[90.4_{-6.4}^{+6.5}\]$
x_S,core [%]	${9.7}_{- 6.6}^{+ 6.3}$ $\[9.7_{-6.6}^{+6.3}\]$	${9.7}_{- 6.5}^{+ 6.4}$ $\[9.7_{-6.5}^{+6.4}\]$	${9.6}_{- 6.5}^{+ 6.4}$ $\[9.6_{-6.5}^{+6.4}\]$

x_Si,mantle [%]	${39.4}_{- 4.0}^{+ 5.3}$ $\[39.4_{-4.0}^{+5.3}\]$	${39.2}_{- 3.9}^{+ 5.2}$ $\[39.2_{-3.9}^{+5.2}\]$	${39.0}_{- 3.8}^{+ 5.1}$ $\[39.0_{-3.8}^{+5.1}\]$
x_Mg,mantle [%]	${44.9}_{- 6.9}^{+ 7.3}$ $\[44.9_{-6.9}^{+7.3}\]$	${44.7}_{- 6.7}^{+ 7.2}$ $\[44.7_{-6.7}^{+7.2}\]$	${44.5}_{- 6.6}^{+ 7.3}$ $\[44.5_{-6.6}^{+7.3}\]$
x_Fe,mantle [%]	${15.0}_{- 9.6}^{+ 9.3}$ $\[15.0_{-9.6}^{+9.3}\]$	${15.5}_{- 9.6}^{+ 9.0}$ $\[15.5_{-9.6}^{+9.0}\]$	${15.9}_{- 9.5}^{+ 8.6}$ $\[15.9_{-9.5}^{+8.6}\]$

Notes. Note that all mass fractions are in relation to the total planet mass, including also the H/He envelope, to be more comparable to the results generated with the new version of plaNETic. However, this means that these results are not comparable with the ones reported in our own previous work where we employed the same model.

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