The CARMENES search for exoplanets around M dwarfs - Dynamical characterization of the multiple planet system GJ 1148 and prospects of habitable exomoons around GJ 1148 b

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Table 4

Stable posterior 1σ confidence intervals for the dynamical masses, semi-major axes, and inclinations of the GJ 1148 system derived from a mutually inclined dynamical modeling of the RV data via MCMC.

Parameter	GJ 1148 b	GJ 1148 c
m [M_Jup]	[0.300; 0.432]	[0.205; 0.313]
a [au]	[0.165667; 0.165689]	[0.908689; 0.911094]
i [deg]	[57.36; 122.97]	[58.18;119.64]
Ω [deg]	0 (fixed)	[0.0; 248.43]
Δi ^(a) [deg]		[0.0; 60.0 ]

Notes. The posterior confidence intervals for the other planetary parameters are consistent with those obtained forthe coplanar edge-on case (see Table 2), and are thus not shown here. ^(a) Small possibility for retrograde orbits with 130° < Δi < 180°, see Fig. 8.

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