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Fig. 4


Cumulative distribution of the mass of the MS components in resolved WDMS within 20 pc. The observed spectral types from Table 1 are converted to masses using Kraus & Hillenbrand (2007). The observed mass distribution is weighted according to the probability for each system to be within 20 pc (blue solid line). Both synthetic models shown are under the assumption of a constant SFR (i.e. model cSFR) and a log-uniform period distribution (i.e. model “Abt”), but differ in their treatment of the initial mass ratio distribution. The green dashed line represents the standard assumption in this paper of a uniform mass ratio distribution, whereas the red dotted line represents a random pairing of the primary and secondary mass.

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