DREAM - I. Orbital architecture orrery | Astronomy & Astrophysics (A&A)

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Volume 669 (January 2023)

A&A, 669 (2023) A63

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Table C.6

Properties of the HD 106315 system

Parameter	Symbol	Value	Unit	Origin
Stellar parameters

Spectral type		F5		Barros et al. (2017)
Stellar temperature	T_eff	6364 ± 87	K	Kosiarek et al. (2021)
Stellar radius	R_*	1.269 ± 0.024	Rg	Kosiarek et al. (2021)
Stellar spin inclination	i_*	—	deg	—
Stellar equatorial period	P_eq	—	d	—
Stellar projected velocity	v_eq sin i_*	${9.66}_{- 0.65}^{+ 0.64}$ $9.66_{ - 0.65}^{ + 0.64}$	km s⁻¹	This work
Age	τ	4.48 ± 0.96	Gyr	Barros et al. (2017)
Limb-darkening coefficients	u₁	0.340		Exofast
	u₂	0.316

Planet b parameters

Orbital period	P	9.55287 ± 0.00021	d	Kosiarek et al. (2021)
Transit epoch	T₀	2457586.5476 ± 0.0025	BJD_tdb	Kosiarek et al. (2021)
Eccentricity	e	0.0 (fixed)		Kosiarek et al. (2021)
Argument of periastron	ω	90 (fixed)	^deg	Kosiarek et al. (2021)
Stellar reflex velocity	K	${2.88}_{- 0.84}^{+ 0.85}$ $2.88_{ - 0.84}^{ + 0.85}$	m s⁻¹	Kosiarek et al. (2021)

Planet c parameters

Orbital period	P	21.05652 ± 0.00012	d	Kosiarek et al. (2021)
Transit epoch	T₀	2457569.01767 ± 0.00097	BJD_tdb	Kosiarek et al. (2021)
Eccentricity	e	0.0 (fixed)		Kosiarek et al. (2021)
Argument of periastron	ω	90 (fixed)	^deg	Kosiarek et al. (2021)
Stellar reflex velocity	K	2.53 ± 0.79	m s⁻¹	Kosiarek et al. (2021)
Scaled separation	a/R_*	${29.5}_{- 4.2}^{+ 5.7}$ $29.5_{ - 4.2}^{ + 5.7}$		Kosiarek et al. (2021)
Orbital inclination	i	${88.89}_{- 0.51}^{+ 0.69}$ $88.89_{ - 0.51}^{ + 0.69}$	deg	Kosiarek et al. (2021)
Impact parameter	b	${0.688}_{- 0.094}^{+ 0.044}$ $0.688_{ - 0.094}^{ + 0.044}$		Rodriguez et al. (2017)
Transit duration	T₁₄	${4.728}_{- 0.065}^{+ 0.084}$ $4.728_{ - 0.065}^{ + 0.084}$	h	Rodriguez et al. (2017)
Planet-to-star radius ratio	R_p/R_*	0 03481 ± 0 00099		Guilluy et al. (2021)
Projected spin-orbit angle	λ	$- {2.68}_{- 2.6}^{+ 2.7}$ $- 2.68_{ - 2.6}^{ + 2.7}$	deg	This work

Notes:^† We use the scaled separation and orbital inclination derived by Kosiarek et al. (2021) from Spitzer transits, as they provide a better match to the transit duration.

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