Discovery of a transiting hot water-world candidate orbiting Ross 176 with TESS and CARMENES

Home

All issues

Volume 700 (August 2025)

A&A, 700 (2025) A216

Full HTML

Open Access

Table A.2

Priors, along with medians and 68.3% percent credible intervals of the posterior distributions of the model parameters, as derived from the joint fit analysis performed with juliet for Ross 176 b.

Parameters	Priors	Posteriors	Description
Stellar parameters
ρ_* [kg/m³]	$U (3615, 4615)$ $$\mathcal{U}$(3615,4615)$	$4049_{- 246}^{+ 310}$ $4049^{+310}_{-246}$	Stellar density
Planet parameters
P [d]	$U (4.8, 5.2)$ $$\mathcal{U}$(4.8,5.2)$	${5.0066338}_{- 0.000007}^{+ 0.000008}$ $5.0066338^{+0.000008}_{-0.000007}$	Period
t₀ [BJD_TDB - 2457000.0]	$U (2829.752, 2829.77)$ $$\mathcal{U}$(2829.752,2829.77)$	${2829.7627}_{- 0.0007}^{+ 0.0008}$ $2829.7627^{+0.0008}_{-0.0007}$	Time of transit-center
K [m s⁻¹]	$U (0.0, 26.34)$ $$\mathcal{U}$(0.0,26.34)$	${2.55}_{- 0.51}^{+ 0.49}$ $2.55^{+0.49}_{-0.51}$	RV semi-amplitude
r₁	$U (0.0, 1.0)$ $$\mathcal{U}$(0.0,1.0)$	${0.45}_{- 0.08}^{+ 0.09}$ $0.45^{+0.09}_{-0.08}$	Parameterization for p^[1] and b^[2]
r₂	$U (0.0, 1.0)$ $$\mathcal{U}$(0.0,1.0)$	$0.030 \pm 0.001$ $0.030\pm 0.001$	Parameterization for \textit{p} and \textit{b}
e	$U (0.0, 0.5)$ $$\mathcal{U}$ (0.0,0.5)$	0.25±0.04	Eccentricity of the orbit
ω (deg)	$U (- 180, 180)$ $$\mathcal{U}$ (-180,180)$	$101_{- 23}^{+ 19}$ $101^{+19}_{-23}$	Argument of periastron passage of the orbit
Photometric parameters
q1_TESS	$U (0.0, 1.0)$ $$\mathcal{U}$(0.0,1.0)$	${0.768}_{- 0.237}^{+ 0.156}$ $0.768^{+0.156}_{-0.237}$	Quadratic limb-darkening parameterization
q2_TESS	$U (0.0, 1.0)$ $$\mathcal{U}$(0.0,1.0)$	${0.327}_{- 0.161}^{+ 0.191}$ $0.327^{+0.191}_{-0.161}$	Quadratic limb-darkening parameterization
D_TESS	1.0 (fixed)	...	Dilution factor
mflux_TESS	$N (0.0, 0.1)$ $$\mathcal{N}$(0.0,0.1)$	−0.000012±0.000004	Relative flux offset
σ_w,TESS [ppm]	$L (0.1, 10^{3})$ $$\mathcal{L}$(0.1,$\mathrm{10^3}$)$	$112_{- 23}^{+ 19}$ $112^{+19}_{-23}$	Extra jitter term
q1_MuSCAT2g′$	$U (0.0, 1.0)$ $$\mathcal{U}$(0.0,1.0)$	${0.285}_{- 0.211}^{+ 0.452}$ $0.285^{+0.452}_{-0.211}$	Quadratic limb-darkening parameterization
q2_MuSCAT2g′	$U (0.0, 1.0)$ $$\mathcal{U}$(0.0,1.0)$	${0.186}_{- 0.135}^{+ 0.211}$ $0.186^{+0.211}_{-0.135}$	Quadratic limb-darkening parameterization
D_MuSCAT2g′	1.0 (fixed)	...	Dilution factor
mflux_MuSCAT2g′	$N (0.0, 0.1)$ $$\mathcal{N}$(0.0,0.1)$	−0.0002 ± 0.0001	Relative flux offset
σ_{w,MuSCAT2g′} [ppm]	$L (0.1, 10^{3})$ $$\mathcal{L}$(0.1,$\mathrm{10^3}$)$	$1_{- 1}^{+ 9}$ $1^{+9}_{-1}$	Extra jitter term
q1_MuSCAT2r′	$U (0.0, 1.0)$ $$\mathcal{U}$(0.0,1.0)$	${0.784}_{- 0.148}^{+ 0.132}$ $0.784^{+0.132}_{-0.148}$	Quadratic limb-darkening parameterization
q2_MuSCAT2r′	$U (0.0, 1.0)$ $$\mathcal{U}$(0.0,1.0)$	${0.815}_{- 0.157}^{+ 0.120}$ $0.815^{+0.120}_{-0.157}$	Quadratic limb-darkening parameterization
D_MuSCAT2r′	1.0 (fixed)	...	Dilution factor
mflux_MuSCAT2r′	$N (0.0, 0.1)$ $$\mathcal{N}$(0.0,0.1)$	0.0003 ± 0.0001	Relative flux offset
σ_{w,MuSCAT2r′} [ppm]	$L (0.1, 10^{3})$ $$\mathcal{L}$(0.1,$\mathrm{10^3}$)$	$4_{- 4}^{+ 57}$ $4^{+57}_{-4}$	Extra jitter term
q1_MuSCAT2i′	$U (0.0, 1.0)$ $$\mathcal{U}$(0.0,1.0)$	${0.159}_{- 0.117}^{+ 0.204}$ $0.159^{+0.204}_{-0.117}$	Quadratic limb-darkening parameterization
q2_MuSCAT2i′	$U (0.0, 1.0)$ $$\mathcal{U}$(0.0,1.0)$	${0.599}_{- 0.266}^{+ 0.236}$ $0.599^{+0.236}_{-0.266}$	Quadratic limb-darkening parameterization
D_MuSCAT2i′	1.0 (fixed)	...	Dilution factor
mflux_MuSCAT2i′	$N (0.0, 0.1)$ $$\mathcal{N}$(0.0,0.1)$	0.0001 ± 0.0001	Relative flux offset
σ_{w,MuSCAT2i′} [ppm]	$L (0.1, 10^{3})$ $$\mathcal{L}$(0.1,$\mathrm{10^3}$)$	$11_{- 10}^{+ 227}$ $11^{+227}_{-10}$	Extra jitter term
q1_MuSCAT2zs′	$U (0.0, 1.0)$ $$\mathcal{U}$(0.0,1.0)$	${0.678}_{- 0.213}^{+ 0.201}$ $0.678^{+0.201}_{-0.213}$	Quadratic limb-darkening parameterization
q2_MuSCAT2zs′	$U (0.0, 1.0)$ $$\mathcal{U}$(0.0,1.0)$	${0.756}_{- 0.213}^{+ 0.162}$ $0.756^{+0.162}_{-0.213}$	Quadratic limb-darkening parameterization
D_MuSCAT2zs′	1.0 (fixed)	...	Dilution factor
mflux_MuSCAT2zs′	$N (0.0, 0.1)$ $$\mathcal{N}$(0.0,0.1)$	0.0003±0.0001	Relative flux offset
σ_{w,MuSCAT2zs′} [ppm]	$L (0.1, 10^{3})$ $$\mathcal{L}$(0.1,$\mathrm{10^3}$)$	$870_{- 427}^{+ 96}$ $870^{+96}_{-427}$	Extra jitter term
RV parameters
μ_CARMENES [m/s]	$U (- 30, 30)$ $$\mathcal{U}$(-30,30)$	$- {0.25}_{- 2.37}^{+ 2.02}$ $-0.25^{+2.02}_{-2.37}$	RV offset
σ_w,CARMENES [m/s]	$L (10^{- 3}, 10^{2})$ $$\mathcal{L}$($\mathrm{10^{-3},10^2}$)$	${0.178}_{- 0.133}^{+ 0.463}$ $0.178^{+0.463}_{-0.133}$	Extra jitter term
GP hyperparameters
GP_σ,TESS [ppm]	$L (0.01, 10)$ $$\mathcal{L}$(0.01,10)$	${0.47}_{- 0.43}^{+ 3.16}$ $0.47^{+3.16}_{-0.43}$	Amplitude of the GP
GP_ρ,TESS	$U (0.001, 100)$ $$\mathcal{U}$(0.001,100)$	$1_{- 1}^{+ 20}$ $1^{+20}_{-1}$	Time/length-scale of the GP
GP_B,CARMENES [m/s]	$U (0, 40)$ $$\mathcal{U}$(0,40)$	23 ± 7	Amplitude of the GP
GP_C,CARMENES	$U (0, 20)$ $$\mathcal{U}$(0,20)$	11 ± 6	Additive factor impacting on the amplitude of the GP
GP_L,CARMENES	$L (0.1, 10^{2})$ $$\mathcal{L}$(0.1,$\mathrm{10^2}$)$	$40_{- 19}^{+ 29}$ $40^{+29}_{-19}$	Length-scale of exponential part of the GP
GP_{Prot,CARMENES} [d]	$N (16, 2)$ $$\mathcal{N}$(16,2)$	17±1	Period of the quasi-periodic GP

References. [1]: planet-to-star radius ratio; [2] impact parameter.

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.