Fig. 1
Architecture of known multi-planet systems around M-dwarf hosts, ordered by semi-major axis of the innermost planet (list is not complete). Most of the M-dwarf planetary systems are composed of low-mass planets in or below the Neptune-mass regime. Notable exceptions are the GJ 876 and the GJ 1148 M-dwarf systems, which are consistent with a pair of planets in the Jupiter- and Saturn-mass regimes, respectively.
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