  The physical properties of faint stellar and substellar objects often rely on
indirect, model-dependent estimates. For example, the masses of brown dwarfs
are usually inferred using evolutionary models, which are age dependent and
have yet to be properly calibrated. With the goal of identifying new benchmark
objects to test low-mass stellar and substellar models, we have carried out a
comprehensive adaptive optics survey as part of the TaRgetting
bENchmark-objects with the Doppler Spectroscopy high-contrast imaging program.
Using legacy radial velocity measurements from High Resolution Echelle
Spectrometer at Keck, we have identified several dozen stars that show
long-term Doppler accelerations. We present follow-up high-contrast
observations from the campaign and report the discovery of 31 co-moving
companions, as well as 11 strong candidate companions, to solar-type stars with
well-determined parallax and metallicity values. Benchmark objects of this
nature lend themselves to orbit determinations, dynamical mass estimates, and
independent compositional assessment. This compendium of benchmark objects will
serve as a convenient test group to substantiate theoretical evolutionary and
atmospheric models near the hydrogen fusing limit.
