In-depth characterization of the Kepler-10 three-planet system with HARPS-N radial velocities and Kepler transit timing variations

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Volume 696 (April 2025)

A&A, 696 (2025) A233

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Table C.3

Kepler-10 radial-velocity parameters from the DE-MCMC analysis of the HARPS-N and HIRES data.

RV zero points and jitters					Planet parameters
γ_HN-1	γ_HN-2	γ_HIRES	σ_{j, HN–1}	σ_{j, HN–2}	σ_{j, HIRES}	Planet	P	T_c	e	ω	K
[m s⁻¹]	[m s⁻¹]	[m s⁻¹]	[m s⁻¹]	[m s⁻¹]	[m s⁻¹]		[d]	[BJD_TDB − 2450000]		[deg]	[m s⁻¹]
two-planet model
−98737.58 ± 0.43	0.25 ± 0.18	−0.02 ± 0.43	${2.32}_{- 0.39}^{+ 0.43}$ $2.32_{-0.39}^{+0.43}$	2.46 ± 0.15	${2.53}_{- 0.33}^{+ 0.41}$ $2.53_{-0.33}^{+0.41}$	Kepler-10 b	0.83749070(20)	5034.08687(18)	0	–	2.35 ± 0.21
−98737.58 ± 0.43	0.25 ± 0.18	−0.02 ± 0.43	${2.32}_{- 0.39}^{+ 0.43}$ $2.32_{-0.39}^{+0.43}$	2.46 ± 0.15	${2.53}_{- 0.33}^{+ 0.41}$ $2.53_{-0.33}^{+0.41}$	Kepler-10c	45.294301(48)	5062.26648(81)	0.144 ± 0.056	$319_{- 19}^{+ 30}$ $319_{-19}^{+30}$	2.04 ± 0.23
three-planet model
−98737.24 ± 0.46	0.13 ± 0.17	−0.07 ± 0.49	${2.40}_{- 0.40}^{+ 0.44}$ $2.40_{-0.40}^{+0.44}$	2.19 ± 0.15	${2.75}_{- 0.37}^{+ 0.42}$ $2.75_{-0.37}^{+0.42}$	Kepler-10 b	0.83749070(20)	5034.08687(18)	0	–	2.32 ± 0.20
						Kepler-10c	45.294301(48)	5062.26648(81)	0.149 ± 0.049	$332_{- 22}^{+ 29}$ $332_{-22}^{+29}$	2.02 ± 0.23
						Kepler-10d	151.21 ± 0.60	${7161.2}_{- 6.0}^{+ 5.5}$ $7161.2_{-6.0}^{+5.5}$	0.14 ± 0.10 (< 0.19)	$152_{- 43}^{+ 41}$ $152_{-43}^{+41}$	1.32 ± 0.25

Notes. γ and σ_j are the RV zero points and uncorrelated jitter terms (HN-1 and HN-2 refer to the old and new HARPS-N CCD, respectively); P and T_c are the orbital period and inferior conjunction times; e and ω are the orbital eccentricity and argument of periastron; and K is the RV semiamplitude. Very similar results were obtained with the MultiNest and multi-dimensional GP plus PolyChord analyses.

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