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.1

Properties of the HAT-P-3 system

Parameter	Symbol	Value	Unit	Origin
Stellar parameters

Spectral type		K1		Grieves et al. (2018)
Stellar temperature	T_eff	5190±80	K	Mancini et al. (2018)
Stellar radius	R_*	0.850 ± 0.021	R_⊙	Mancini et al. (2018)
Stellar spin inclination	i_*	${15.8}_{- 7.3}^{+ 6.2}$ $15.8_{ - 7.3}^{ + 6.2}$	deg	This work
Stellar equatorial period	P_eq	19 9±1 5	d	Mancini et al. (2018)
Stellar projected velocity	^veq sin i_*	${0.46}_{- 0.25}^{+ 0.22}$ $0.46_{ - 0.25}^{ + 0.22}$	km s⁻¹	This work
Age	τ	${2.9}_{- 3.7}^{+ 1.7}$ $2.9_{ - 3.7}^{ + 1.7}$	Gyr	Mancini et al. (2018)
Limb-darkening coefficients	u₁	0.633		Exofast
	u₂	0.141

Planet b parameters

Orbital period	P	2.89973797 ± 0.00000038	d	Baluev et al. (2019)
Transit epoch	T₀	2457237.38678 ± 0.00010	BJD_TDB	Baluev et al. (2019)
		2454218.75960 ± 0.00016	BJD_TDB	This work (STELLA)
Eccentricity	e	0.0 (fixed)		Mancini et al. (2018)
Argument of periastron	ω	90 (fixed)	deg	Mancini et al. (2018)
Stellar reflex velocity	K	90.63 ± 0.58	m s⁻¹	Mancini et al. (2018)
Scaled separation	a/R_*	9.8105 ± 0.2667		Mancini et al. (2018)
Orbital inclination	i	86.31 ± 0.19	deg	Mancini et al. (2018)
Impact parameter	b	0.615 ± 0.012		Baluev et al. (2019)
Transit duration	T₁₄	2.0808 ± 0.0082	h	Baluev et al. (2019)
Planet-to-star radius ratio	Rp/R_*	0.11091 ± 0.00048		Baluev et al. (2019)
Projected spin-orbit angle	λ	$- {25.3}_{- 22.8}^{+ 29.4}$ $- 25.3_{ - 22.8}^{ + 29.4}$	deg	This work
3D spin-orbit angle	ψ_N	${72.0}_{- 7.9}^{+ 8.4}$ $72.0_{ - 7.9}^{ + 8.4}$	deg	This work
	ψ_N	${79.3}_{- 7.9}^{+ 8.4}$ $79.3_{ - 7.9}^{ + 8.4}$	deg
	ψ	${75.7}_{- 7.9}^{+ 8.5}$ $75.7_{ - 7.9}^{ + 8.5}$	deg

Note: The stellar equatorial period is the weighted average of the two consistent values reported by Mancini et al. (2018). The value of a/R_* is derived from Mancini et al. (2018)'s a and R_* values.

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