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

Home

All issues

Volume 669 (January 2023)

A&A, 669 (2023) A63

Full HTML

Press Release

Open Access

Table C.12

Properties of the WASP-107 system

Parameter	Symbol	Value	Unit	Origin
Stellar parameters

Spectral type		K6		Anderson et al. (2017)
Stellar temperature	T_eff	4425 ± 70	K	Piaulet et al. (2021)
Stellar radius	R_*	0.67 ± 0.02	R_⊙	Piaulet et al. (2021)
Stellar spin inclination	i_*	${15.1}_{- 2.6}^{+ 2.1}$ $15.1_{ - 2.6}^{ + 2.1}$	deg	This work
Stellar equatorial period	P_eq	17.1 ± 1.0	d	Anderson et al. (2017)
Stellar projected velocity	v_eq sin i_*	${0.507}_{- 0.086}^{+ 0.072}$ $0.507_{ - 0.086}^{ + 0.072}$	km s−1	This work
Age	τ	3.4 ± 0.7	Gyr	Piaulet et al. (2021)
Limb-darkening coefficients	u₁	0.771		Exofast
	u₂	0.023

Planet b parameters

Orbital period	P	5.7214742 ± 0.0000043	d	Dai & Winn (2017)
Transit epoch	T₀	2457584.329897 ± 0.000032	BJD_tdb	Dai & Winn (2017)
Eccentricity	e	0.0 (fixed)		Allart et al. (2019)
Argument of periastron	ω	90 (fixed)	^deg	Allart et al. (2019)
Stellar reflex velocity	K	14.1 ± 0.8	m s−1	Piaulet et al. (2021)
Scaled separation	a/R_*	18.02 ± 0.27		Allart et al. (2019)
Orbital inclination	i	89.560 ± 0.078		Močnik et al. (2017)
Impact parameter	b	0.139 ± 0.024		Močnik et al. (2017)
Transit duration	T₁₄	2.7528 ± 0.0072	h	Anderson et al. (2017)
Planet-to-star radius ratio	R_p/R_*	0.142988 ± 0.00012		Spake et al. (2018)
Projected spin-orbit angle	λ	$- {158.0}_{- 18.5}^{+ 15.2}$ $- 158.0_{ - 18.5}^{ + 15.2}$	deg	This work
3D spin-orbit angle	ψ_N	${103.0}_{- 1.8}^{+ 1.7}$ $103.0_{ - 1.8}^{ + 1.7}$	deg	This work
	ψ_S	${103.9}_{- 1.8}^{+ 1.7}$ $103.9_{ - 1.8}^{ + 1.7}$	deg
	ψ	${103.5}_{- 1.8}^{+ 1.7}$ $103.5_{ - 1.8}^{ + 1.7}$	deg

Planet c parameters

Orbital period	P	$1088_{- 16}^{+ 15}$ $1088_{ - 16}^{ + 15}$	d	Piaulet et al. (2021)
Transit epoch	T₀	$2458520_{- 70}^{+ 60}$ $2458520_{ - 70}^{ + 60}$	BJD_tdb	Piaulet et al. (2021)
Eccentricity	e	0.28 ± 0.07		Piaulet et al. (2021)
Argument of periastron	ω	$- 120_{- 20}^{+ 30}$ $- 120_{ - 20}^{ + 30}$	^deg	Piaulet et al. (2021)
Stellar reflex velocity	K	${9.6}_{- 1.0}^{+ 1.1}$ $9.6_{ - 1.0}^{ + 1.1}$	m s−1	Piaulet et al. (2021)

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.