The CARMENES search for exoplanets around M dwarfs - Occurrence rates of Earth-like planets around very low-mass stars

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Volume 696 (April 2025)

A&A, 696 (2025) A101

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Table 3

Posterior parameters for the new planet discoveries.

Parameter	G 268−110 b	G 261−6 b	G 192−15 b	G 192−15 c	Description
Posterior parameters
P (d)	${1.432 630}_{- 76 \times 10^{+ 6}}^{+ 72 \times 10^{- 6}}$ $1.432630_{ - 76 \times {{10}^{ + 6}}}^{ + 72 \times {{10}^{ - 6}}}$	${5.4536}_{- 0.0032}^{+ 0.0031}$ $5.4536_{ - 0.0032}^{ + 0.0031}$	${2.274 76}_{- 28 \times 10^{- 5}}^{+ 26 \times 10^{- 5}}$ $2.27476_{ - 28 \times {{10}^{ - 5}}}^{ + 26 \times {{10}^{ - 5}}}$	$1219_{- 11}^{+ 13}$ $1219_{ - 11}^{ + 13}$	Orbital period
t₀ (BJD)	${2 457 613.435}_{- 0.087}^{+ 0.094}$ $2457613.435_{ - 0.087}^{ + 0.094}$	${2 459 345.14}_{- 0.22}^{+ 0.22}$ $2459345.14_{ - 0.22}^{ + 0.22}$	${2 457 851.82}_{- 0.20}^{+ 0.23}$ $2457851.82_{ - 0.20}^{ + 0.23}$	${2 458 813}_{- 12}^{+ 10}$ $2458813_{ - 12}^{ + 10}$	Time of potential transit-center
K (m s⁻¹)	${3.23}_{- 0.50}^{+ 0.50}$ $3.23_{ - 0.50}^{ + 0.50}$	${2.08}_{- 0.32}^{+ 0.31}$ $2.08_{ - 0.32}^{ + 0.31}$	${1.94}_{- 0.32}^{+ 0.32}$ $1.94_{ - 0.32}^{ + 0.32}$	${4.49}_{- 0.54}^{+ 0.61}$ $4.49_{ - 0.54}^{ + 0.61}$	RV semi-amplitude
e	0	0	0	${0.676}_{- 0.073}^{+ 0.063}$ $0.676_{ - 0.073}^{ + 0.063}$	Eccentricity ^(a)
ω (deg)	…	…	…	${73.4}_{- 9.6}^{+ 9.8}$ $73.4_{ - 9.6}^{ + 9.8}$	Argument of periastron ^(a)
Derived parameters
M_p1 sin i (M_⊕)	${1.52}_{- 0.25}^{+ 0.25}$ $1.52_{ - 0.25}^{ + 0.25}$	${1.37}_{- 0.22}^{+ 0.23}$ $1.37_{ - 0.22}^{ + 0.23}$	${1.03}_{- 0.18}^{+ 0.18}$ $1.03_{ - 0.18}^{ + 0.18}$	${14.3}_{- 1.5}^{+ 1.6}$ $14.3_{ - 1.5}^{ + 1.6}$	Minimum mass
a_p (au)	${0.012 83}_{- 0.00029}^{+ 0.00028}$ $0.01283_{ - 0.00029}^{ + 0.00028}$	${0.029 71}_{- 0.00093}^{+ 0.00087}$ $0.02971_{ - 0.00093}^{ + 0.00087}$	${0.01723}_{- 0.00039}^{+ 0.00038}$ $0.01723_{ - 0.00039}^{ + 0.00038}$	${1.137}_{- 0.027}^{+ 0.026}$ $1.137_{ - 0.027}^{ + 0.026}$	Semi-major axis
S (S_⊕)	${13.57}_{- 0.57}^{+ 0.64}$ $13.57_{ - 0.57}^{ + 0.64}$	${1.80}_{- 0.11}^{+ 0.12}$ $1.80_{ - 0.11}^{ + 0.12}$	${7.06}_{- 0.31}^{+ 0.34}$ $7.06_{ - 0.31}^{ + 0.34}$	${0.001 620}_{- 77 \times 10^{- 6}}^{+ 80 \times 10^{- 6}}$ $0.001620_{ - 77 \times {{10}^{ - 6}}}^{ + 80 \times {{10}^{ - 6}}}$	Stellar irradiance
T_{eq, p} (K)	$534_{- 11}^{+ 12}$ $534_{ - 11}^{ + 12}$	${322.3}_{- 9.7}^{+ 9.9}$ $322.3_{ - 9.7}^{ + 9.9}$	${453.6}_{- 8.5}^{+ 8.8}$ $453.6_{ - 8.5}^{ + 8.8}$	${55.9}_{- 1.1}^{+ 1.1}$ $55.9_{ - 1.1}^{ + 1.1}$	Equilibrium temperature ^(b)
Instrument parameters
γ (m s⁻¹)	$+ {0.04}_{- 0.35}^{+ 0.36}$ $+ 0.04_{ - 0.35}^{ + 0.36}$	$+ {0.14}_{- 0.23}^{+ 0.23}$ $+ 0.14_{ - 0.23}^{ + 0.23}$	$- {0.20}_{- 0.23}^{+ 0.23}$ $- 0.20_{ - 0.23}^{ + 0.23}$	Instrumental zero point
σ (m s⁻¹)	${2.96}_{- 0.30}^{+ 0.33}$ $2.96_{ - 0.30}^{ + 0.33}$	${1.60}_{- 0.36}^{+ 0.34}$ $1.60_{ - 0.36}^{ + 0.34}$	${1.62}_{- 0.27}^{+ 0.26}$ $1.62_{ - 0.27}^{ + 0.26}$	RV jitter term

Notes. Error bars denote the 68% posterior credibility intervals. ^(a) Eccentricity fixed to null for G 268−110 b, G 261−6 b, and G 192−15 b. As a result, their arguments of periastron are not defined. (b) Equilibrium temperature assuming a zero Bond albedo, A_B = 0.

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