Fig. 33.

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Triage of the Gaia astrometric binaries, with classes I to III from bottom to top delineated by dotted and dashed lines respectively. Left: AMRF vs. mass of the primary for the astrometric solutions of this paper. The systems with a probable compact-object companion (class III) are presented as bold black points (see text). For reference, the rest of the sample is plotted as fine black points. Right: masses of the compact companions derived from the AMRF as a function of their primary mass. The remaining systems do not appear in this panel. The yellow star is the neutron star candidate Gaia DR3 5136025521527939072 discussed in Sect. 7.3.
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