TOI-1442 b and TOI-2445 b: Two potentially rocky ultra-short period planets around M dwarfs

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Volume 673 (May 2023)

A&A, 673 (2023) A32

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Table 5

Final system parameters.

	Parameter	TOI−1442	TOI−2445
Stellar	T_*,eff (K)	3304 ± 100	3306 ± 100
	log g_* (dex)	4.91 ± 0.03	4.96 ± 0.03
	[M/H]_* (dex)	0.11 ± 0.07	−0.33 ± 0.07
	[Fe/H]_* (dex)	0.03 ± 0.15	−0.39 ± 0.16
	M_* (M_⊙)	0.2843 ± 0.0065	0.2448 ± 0.0056
	R_* (R_⊙)	0.3105 ± 0.0089	0.2699 ± 0.0078
	L_* (L_⊙)

Transit fit	^p	0.03405 ± 0.00077	0.0453 ± 0.0018
	P (d)	0.4090682 ± 0.0000004	0.3711286 ± 0.0000004
	T₀ (BTJD)
	ρ_* (ρ_⊙)		12.5 ± 1.6
	T14 (h)
(derived)	a/R_*^(a)
	b ^(b)	0.29 ± 0.13
	i (deg)^(c)

RVs	Kp (ms⁻¹)	<34	<82

Planetary and orbital	R_p (R_⊕)	1.15 ± 0.06	1.33 ± 0.09
(derived)	Mp (M⊕)	<8	<18
	a (au)^(d)
	Tp,eq (K)^(e)

Notes. Values preceded by < report 3σ upper limits. ^(a)Orbital semi-major axis relative in units of the stellar radius. ^(b)Impact parameter. ^(c)Orbital inclination. ^(d)Orbital semi-major axis. ^(e)Dayside equilibrium temperature, assuming zero albedo and no heat redistribution.

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