This plot (and many more!) appears in Vrijmoet et al. (2020).
My first paper (Vrijmoet et al. 2020)
compared RECONS astrometry to Gaia DR2 to define criteria for identifying unresolved binaries based on their astrometric fits.
My advisor and RECONS fearless leader: Todd J Henry
I have also begun a 3-year speckle interferometry campaign at SOAR
to map orbits of ~350 M dwarf multiples within 25 pc.
The sample was selected using the Vrijmoet+ 2020 DR2 critiera, augmented by binaries from RECONS astrometry and the literature.
My second paper (in prep, to submit late 2021) will present results of the first 1.5 years of this SOAR speckle campaign.
SMARTS 0.9m telescope at CTIO, where we take our data
(and you could, too!)
Another useful list of links for the SMARTS 0.9m & 1.5m
My honorary advisor and RECONS first mate: Wei-Chun Jao