Evolution of BD-14 3065b (TOI-4987b) from giant planet to brown dwarf as possible evidence of deuterium burning at old stellar ages

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Volume 688 (August 2024)

A&A, 688 (2024) A120

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Table 3

Fitted parameters from the allesfitter analysis.

Parameter	Value	Unit	Fit or fixed
Fitted parameters: two-star model

R_b/R_*	${0.0843}_{- 0.0022}^{+ 0.0023}$ $\[0.0843_{-0.0022}^{+0.0023}\]$		fit
(R_* + R_b)/a_b	${0.1804}_{- 0.0028}^{+ 0.0032}$ $\[0.1804_{-0.0028}^{+0.0032}\]$		fit
cos i_b	${0.1602}_{- 0.0033}^{+ 0.0036}$ $\[0.1602_{-0.0033}^{+0.0036}\]$		fit
T_0;b	2313.48578 ± 0.00076	BJD	fit
P_b	4.2889731 ± 0.0000052	d	fit
K_b	1.210 ± 0.071	km s⁻¹	fit
$\sqrt{e_{b}} \cos ω_{b}$ $\[\sqrt{e_{\mathrm{b}}} \cos \omega_{\mathrm{b}}\]$	0.152 ± 0.013		fit
$\sqrt{e_{b}} \sin ω_{b}$ $\[\sqrt{e_{\mathrm{b}}} \sin \omega_{\mathrm{b}}\]$	${0.208}_{- 0.033}^{+ 0.024}$ $\[0.208_{-0.033}^{+0.024}\]$		fit
D₀_;TESS	0.106 ± 0.010		fixed
q_1;TESS	${0.111}_{- 0.110}^{+ 0.073}$ $\[0.111_{-0.110}^{+0.073}\]$		fit
q_2;TESS	0.209 ± 0.093		fit
J_b;TESS	${0.176}_{- 0.054}^{+ 0.070}$ $\[0.176_{-0.054}^{+0.070}\]$		fit
σ_TESS	1332 ± 11	ppm	fit
σ_jitter;TRES	0.32 ± 0.05	km s⁻¹	fit

Fitted parameters: three-star model

R_b/R_*	0.0901 ± 0.0022		fit
(R_* + R_b)/a_b	${0.1711}_{- 0.0029}^{+ 0.0031}$ $\[0.1711_{-0.0029}^{+0.0031}\]$		fit
cos i_b	0.1495 ± 0.0038		fit
T₀_;b	2313.48571 ± 0.00078	BJD	fit
P_b	4.2889734 ± 0.0000051	d	fit
K_b	1.200 ± 0.071	km s^_1	fit
$\sqrt{e_{b}} \cos ω_{b}$ $\[\sqrt{e_{\mathrm{b}}} \cos \omega_{\mathrm{b}}\]$	${0.148}_{- 0.013}^{+ 0.014}$ $\[0.148_{-0.013}^{+0.014}\]$		fit
$\sqrt{e_{b}} \sin ω_{b}$ $\[\sqrt{e_{\mathrm{b}}} \sin \omega_{\mathrm{b}}\]$	${0.220}_{- 0.036}^{+ 0.025}$ $\[0.220_{-0.036}^{+0.025}\]$		fit
D_0;TESS	0.226 ± 0.10		fixed
q_1;TESS	${0.143}_{- 0.088}^{+ 0.098}$ $\[0.143_{-0.088}^{+0.098}\]$		fit
q_2;TESS	0.210 ± 0.099		fit
J_b;TESS	${0.160}_{- 0.049}^{+ 0.067}$ $\[0.160_{-0.049}^{+0.067}\]$		fit
σ_TESS	1330 ± 11	ppm	fit
σ_jitter;TRES	0.32 ± 0.05	km s⁻¹	fit

Notes. a – BJD – 2 457 000, b – dilution factor, c – surface brightness ratio between the companion and star.

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