Gaia-predicted brown dwarf detection rates around FGK stars in astrometry, radial velocity, and photometric transits

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Fig. 8.

Distributions of the BDs resulting from the five-year (left) and ten-year (right) Gaia simulations using P_distr = Ma & Ge for the three adopted astrometric detection thresholds: Δχ² > 30 (41 000, 64 000), Δχ² > 50 (28 000, 45 000), and Δχ² > 100 (17 000, 28 000). (The point-cloud data are from 1% simulations (Sect. 3.3), hence scale by 0.6 to get the BD rates of Table 1.)

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