The multi-planet system TOI-5624: four transiting sub-Neptunes with an outer companion revealed by transit-timing variations

Open Access

Table 2

Planetary parameters derived from LC and RV analyses with the MCMCI code.

Parameter	TOI-5624 b	TOI-5624 c	TOI-5624 d	TOI-5624 e	TOI-5624 f
P ^(a) [d]	3.3903473±0.0000054	7.885385±0.000018	${13.731468}_{- 0.000041}^{+ 0.000042}$ $Mathematical equation: $13.731468_{-0.000041}^{+0.000042}$$	21.489936±0.000029	${45.37}_{- 0.90}^{+ 0.74}$ $Mathematical equation: $45.37_{-0.90}^{+0.74}$$
T₀ ^(a) [BJD]	9649.1284±0.0012	9650.9241±0.0012	9655.2041±0.0012	9655.6215±0.0012	${10338.3}_{- 3.0}^{+ 2.6}$ $Mathematical equation: $10338.3_{-3.0}^{+2.6}$$
dF ^(b) [ppm]	$667_{- 18}^{+ 19}$ $Mathematical equation: $667_{-18}^{+19}$$	$762_{- 24}^{+ 25}$ $Mathematical equation: $762_{-24}^{+25}$$	$1599_{- 38}^{+ 40}$ $Mathematical equation: $1599_{-38}^{+40}$$	1312±29
b	${0.114}_{- 0.079}^{+ 0.097}$ $Mathematical equation: $0.114_{-0.079}^{+0.097}$$	${0.143}_{- 0.093}^{+ 0.089}$ $Mathematical equation: $0.143_{-0.093}^{+0.089}$$	${0.153}_{- 0.097}^{+ 0.088}$ $Mathematical equation: $0.153_{-0.097}^{+0.088}$$	${0.391}_{- 0.029}^{+ 0.027}$ $Mathematical equation: $0.391_{-0.029}^{+0.027}$$
K [m s⁻¹]	4.46±0.65	${1.70}_{- 0.68}^{+ 0.69}$ $Mathematical equation: $1.70_{-0.68}^{+0.69}$$	1.45±0.65	${2.27}_{- 0.75}^{+ 0.74}$ $Mathematical equation: $2.27_{-0.75}^{+0.74}$$	2.59±0.73

T₁₄ [h]	${2.392}_{- 0.031}^{+ 0.029}$ $Mathematical equation: $2.392_{-0.031}^{+0.029}$$	${3.165}_{- 0.041}^{+ 0.038}$ $Mathematical equation: $3.165_{-0.041}^{+0.038}$$	${3.850}_{- 0.046}^{+ 0.041}$ $Mathematical equation: $3.850_{-0.046}^{+0.041}$$	${4.180}_{- 0.029}^{+ 0.031}$ $Mathematical equation: $4.180_{-0.029}^{+0.031}$$
a [AU]	${0.04201}_{- 0.00043}^{+ 0.00041}$ $Mathematical equation: $0.04201_{-0.00043}^{+0.00041}$$	${0.07374}_{- 0.00075}^{+ 0.00072}$ $Mathematical equation: $0.07374_{-0.00075}^{+0.00072}$$	${0.1067}_{- 0.0011}^{+ 0.0010}$ $Mathematical equation: $0.1067_{-0.0011}^{+0.0010}$$	${0.1439}_{- 0.0015}^{+ 0.0014}$ $Mathematical equation: $0.1439_{-0.0015}^{+0.0014}$$	${0.2366}_{- 0.0041}^{+ 0.0040}$ $Mathematical equation: $0.2366_{-0.0041}^{+0.0040}$$
i [°]	${89.41}_{- 0.51}^{+ 0.41}$ $Mathematical equation: $89.41_{-0.51}^{+0.41}$$	${89.58}_{- 0.27}^{+ 0.28}$ $Mathematical equation: $89.58_{-0.27}^{+0.28}$$	${89.69}_{- 0.18}^{+ 0.20}$ $Mathematical equation: $89.69_{-0.18}^{+0.20}$$	${89.405}_{- 0.047}^{+ 0.049}$ $Mathematical equation: $89.405_{-0.047}^{+0.049}$$
R_p/R_⋆	0.02582±0.00036	0.02760±0.00044	${0.03999}_{- 0.00048}^{+ 0.00049}$ $Mathematical equation: $0.03999_{-0.00048}^{+0.00049}$$	0.03622±0.00040
a/R_⋆	${11.01}_{- 0.12}^{+ 0.11}$ $Mathematical equation: $11.01_{-0.12}^{+0.11}$$	${19.32}_{- 0.21}^{+ 0.19}$ $Mathematical equation: $19.32_{-0.21}^{+0.19}$$	${27.97}_{- 0.30}^{+ 0.27}$ $Mathematical equation: $27.97_{-0.30}^{+0.27}$$	${37.70}_{- 0.41}^{+ 0.36}$ $Mathematical equation: $37.70_{-0.41}^{+0.36}$$	62.0±1.1
T_eq ^(c) [K]	1136±15	857±11	${712.6}_{- 9.4}^{+ 9.5}$ $Mathematical equation: $712.6_{-9.4}^{+9.5}$$	${613.8}_{- 8.1}^{+ 8.2}$ $Mathematical equation: $613.8_{-8.1}^{+8.2}$$	${478.5}_{- 7.0}^{+ 7.1}$ $Mathematical equation: $478.5_{-7.0}^{+7.1}$$
e	0 (fixed)	0 (fixed)	0 (fixed)	0 (fixed)	0 (fixed)
ω [°]	90 (fixed)	90 (fixed)	90 (fixed)	90 (fixed)	90 (fixed)
R_p [R_⊕]	2.314±0.035	2.474±0.042	${3.584}_{- 0.050}^{+ 0.051}$ $Mathematical equation: $3.584_{-0.050}^{+0.051}$$	${3.247}_{- 0.043}^{+ 0.042}$ $Mathematical equation: $3.247_{-0.043}^{+0.042}$$
M_p [M_⊕]	9.4±1.4	4.8±1.9	4.9±2.2	${8.9}_{- 3.0}^{+ 2.9}$ $Mathematical equation: $8.9_{-3.0}^{+2.9}$$	13.0±3.7 ^(d)
ρ_p [g cm⁻³]	${4.00}_{- 0.59}^{+ .60}$ $Mathematical equation: $4.00_{-0.59}^{+.60}$$	${1.72}_{- 0.69}^{+ 0.70}$ $Mathematical equation: $1.72_{-0.69}^{+0.70}$$	${0.59}_{- 0.26}^{+ 0.27}$ $Mathematical equation: $0.59_{-0.26}^{+0.27}$$	1.46±0.48

u_1,TE	0.370±0.012
u_2,TE	0.2384±0.0070
u_1,CH	0.503±0.014
u_2,CH	0.200±0.010
σ_jit,H-N [m s⁻¹]	${3.98}_{- 0.10}^{+ 0.13}$ $Mathematical equation: $3.98_{-0.10}^{+0.13}$$
σ_jit,SO [m s⁻¹]	3.54±0.32

Notes. The planetary jump (i.e. fitted) parameters are listed in the top part of the table. All jump parameters but the LD coefficients (u_1,TE = N(0.371,0.011), u_2,TE = N(0.2387,0.0066), u_1,CH = N(0.503,0.013), u_2,CH = N(0.1991,0.0096)) were subject to uniform unbounded priors (except for the physical limits) following the parameterisation detailed in Bonfanti & Gillon (2020). The HARPS-N and SOPHIE RV jitter terms are referred to as σ_jit,H-N and σ_jit,SO, respectively. ^(a)The orbital period P and the time of inferior conjunction T₀ for planets b to e are computed following a linear ephemerides model. The period of planet f inferred from the TTV+RV dynamical analysis (Sect. 5.6) is P_f = ${44.092}_{- 0.057}^{+ 0.015}$ $Mathematical equation: $44.092_{-0.057}^{+0.015}$$ . All the T₀s are shifted by –2 450 000. ^(b) $d F \equiv {(\frac{R_{p}}{R_{⋆}})}^{2}$ $Mathematical equation: $d$F\equiv \left(\frac{R_p}{R_{\star}}\right)^2$$ ^(c)T_eq is computed assuming albedo equal to zero and full heat recirculation. ^(d)It is the planetary minimum mass M_p sin i.

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.