Three super-Earths and a possible water world from TESS and ESPRESSO

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Volume 688 (August 2024)

A&A, 688 (2024) A216

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Table 3

Prior and posterior planetary parameter distributions for TOI-260, for the free-eccentricity model.

Parameter	Prior	Posterior
P_p1 (d)	𝒩 (13.5,0.1)	${13.475853}_{- 0.000013}^{+ 0.000011}$ $13.475853_{ - 0.000013}^{ + 0.000011}$
t_0,p1 (BJD)	𝒩 (2458392.3,0.1)	${2458392.2945}_{- 0.0014}^{+ 0.0017}$ $2458392.2945_{ - 0.0014}^{ + 0.0017}$
p_p1	𝒩 (0.02,0.1)	${0.02458}_{- 0.00081}^{+ 0.00073}$ $0.02458_{ - 0.00081}^{ + 0.00073}$
b_p1	𝒰(0,1)	0.33 ± 0.16
$\sqrt{e} \sin ω_{p 1}$ $\sqrt e \sin {\omega _{{\rm{p}}1}}$	𝒰(0,1)	${0.39}_{- 0.13}^{+ 0.17}$ $0.39_{ - 0.13}^{ + 0.17}$
$\sqrt{e} \cos ω_{p 1}$ $\sqrt e \cos {\omega _{{\rm{p}}1}}$	𝒰(0,1)	${0.72}_{- 0.16}^{+ 0.06}$ $0.72_{ - 0.16}^{ + 0.06}$
K_p1 (ms⁻¹)	𝒰(0,10) (ms^-1)	${3.49}_{- 1.09}^{+ 0.86}$ $3.49_{ - 1.09}^{ + 0.86}$
ρ (kgm⁻³)	𝒥(l00,10 000)	${2609.8}_{- 644.2}^{+ 1068.1}$ $2609.8_{ - 644.2}^{ + 1068.1}$
q_1,TESS	𝒰(0,1)	${0.34}_{- 0.17}^{+ 0.24}$ $0.34_{ - 0.17}^{ + 0.24}$
q_2,TESS	𝒰(0,1)	${0.37}_{- 0.22}^{+ 0.25}$ $0.37_{ - 0.22}^{ + 0.25}$
µ_ESPRESSO18 (ms⁻¹)	𝒰(−11000, −10 900)	$- {10943.2}_{- 2.4}^{+ 2.3}$ $- 10943.2_{ - 2.4}^{ + 2.3}$
σ_w,ESPRESSO18 (ms⁻¹)	𝒥(0.001,10)	${0.04}_{- 0.03}^{+ 0.48}$ $0.04_{ - 0.03}^{ + 0.48}$
µ_ESPRESSO19 (ms⁻¹)	𝒰(−11000, −10 900)	$- {10945.24}_{- 0.83}^{+ 0.81}$ $- 10945.24_{ - 0.83}^{ + 0.81}$
σ_w,ESPRESSO19 (ms⁻1)	𝒥(0.001,10)	${1.50}_{- 0.29}^{+ 0.32}$ $1.50_{ - 0.29}^{ + 0.32}$
µ _HIRES (ms⁻¹)	𝒰(−20,20)	$- {0.36}_{- 0.86}^{+ 0.95}$ $- 0.36_{ - 0.86}^{ + 0.95}$
σ_w,HIRES (ms⁻¹)	𝒥(0.001,100)	${0.05}_{- 0.04}^{+ 1.07}$ $0.05_{ - 0.04}^{ + 1.07}$
σ _{GP,ESPRESSO18,ESPRESSO19}	𝒯𝒩 (3.80,0.81,0,1000)	${3.57}_{- 0.39}^{+ 0.44}$ $3.57_{ - 0.39}^{ + 0.44}$
α_{GP,ESPRESSOl8,ESPRESSOl9}	𝒯𝒩 (0.018,0.017,0,1000)	${0.027}_{- 0.009}^{+ 0.012}$ $0.027_{ - 0.009}^{ + 0.012}$
Γ_{GP,ESPRESSO18,ESPRESSO19}	𝒯𝒩 (0.1,1.5,0,1000)	${1.19}_{- 0.49}^{+ 0.67}$ $1.19_{ - 0.49}^{ + 0.67}$
P_{rot,GP,ESPRESSO18,ESPRESSO19,HIRES}	𝒩 (31,6)	${23.8}_{- 5.1}^{+ 4.9}$ $23.8_{ - 5.1}^{ + 4.9}$
σ _GP,HIRES	𝒯𝒩 (5.4,1.1,0,1000)	${4.82}_{- 0.56}^{+ 0.56}$ $4.82_{ - 0.56}^{ + 0.56}$
α_GP,HIRES	𝒯𝒩 (0.036,0.066,0,1000)	${0.091}_{- 0.041}^{+ 0.054}$ $0.091_{ - 0.041}^{ + 0.054}$
γ_GP,HIRES	𝒯𝒩 (0.4,3.1,0,1000)	${4.4}_{- 1.8}^{+ 2.3}$ $4.4_{ - 1.8}^{ + 2.3}$
m_{dilution,TESS3}	fixed	1.0
m_flux,TESS3	𝒩 (0,0.1)	$(- {1.7}_{- 3.2}^{+ 3.3}) \times 10^{- 5}$ $\left( { - 1.7_{ - 3.2}^{ + 3.3}} \right) \times {10^{ - 5}}$
σ _w,TESS3	𝒥(0.1,1000)	${3.1}_{- 2.6}^{+ 13.6}$ $3.1_{ - 2.6}^{ + 13.6}$
σ _GP,TESS3	𝒩(25.5 × 10⁻⁵,2.5 × 10⁻⁵)	$({25.3}_{- 1.2}^{+ 1.3}) \times 10^{- 5}$ $\left( {25.3_{ - 1.2}^{ + 1.3}} \right) \times {10^{ - 5}}$
ρ_GP,TESS3	𝒩 (0.2031,0.0052)	${0.1996}_{- 0.0056}^{+ 0.0042}$ $0.1996_{ - 0.0056}^{ + 0.0042}$
m_{dilution,TESS42}	fixed	1.0
m_flux,TESS42	𝒩 (0,0.1)	−0.4 ± 1.4) × 10⁻⁵
σ _w,TESS42	𝒥(0.1,1000)	${195.3}_{- 7.6}^{+ 7.1}$ $195.3_{ - 7.6}^{ + 7.1}$
σ _GP,TESS42	𝒩(9.0 × 10⁻⁵,1.2 × 10⁻⁵)	$({8.92}_{- 0.63}^{+ 0.64}) \times 10^{- 5}$ $\left( {8.92_{ - 0.63}^{ + 0.64}} \right) \times {10^{ - 5}}$
ρ_GP,TESS42	𝒩 (0.23,0.04)	${0.244}_{- 0.026}^{+ 0.032}$ $0.244_{ - 0.026}^{ + 0.032}$
m_{dilution,TESS7O}	fixed	1.0
m_flux,TESS70	𝒩 (0,0.1)	$(- {0.6}_{- 6.3}^{+ 6.8}) \times 10^{- 5}$ $\left( { - 0.6_{ - 6.3}^{ + 6.8}} \right) \times {10^{ - 5}}$
σ _w,TESS70	𝒥(0.1,1000)	${180.5}_{- 6.1}^{+ 7.0}$ $180.5_{ - 6.1}^{ + 7.0}$
σ _GP,TESS70	𝒩(24.6 × l0^-5,5.1 × l0⁻⁵)	(23.9 ± 2.2) × 10⁻⁵
ρ_GP,TESS70	𝒩 (0.81,0.21)	${0.88}_{- 0.09}^{+ 0.11}$ $0.88_{ - 0.09}^{ + 0.11}$

e_p1	–	${0.678}_{- 0.048}^{+ 0.017}$ $0.678_{ - 0.048}^{ + 0.017}$
ω_p1 (º)	–	${28.3}_{- 10.4}^{+ 17.4}$ $28.3_{ - 10.4}^{ + 17.4}$
α_p1 (au)	–	0.0943 ± 0.0016
i_p1 (º)	–	88.62 ± 0.72
T_14,p1 (h)	–	2.99 ± 0.19
M_p1 (M_⊕)	–	9.41 ± 2.96
R_p1 ⁽R_⊕⁾	–	1.63 ± 0.07
ρ_p1 (gcm⁻³)	–	11.99 ± 4.04
T_eq,p1 (K)	–	532.0 ± 15.0
logZ	–	240 848.9 ± 0.6

Notes. Obtained with juliet, using the $(\sqrt{e} \sin ω, \sqrt{e} \cos ω)$ $(\sqrt e \sin \omega ,\sqrt e \cos \omega )$ parametrisation, with a limiting eccentricity of 0.7. Top: fitted parameters. Bottom: derived orbital parameters and physical parameters.

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