We report the detection of seven low mass companions to intermediate-mass stars ( SpT B/A/F ; M \sim 1.5-4.5 M _ { \odot } ) in the Scorpius-Centaurus Association using nonredundant aperture masking interferometry .
Our newly detected objects have contrasts \Delta L ^ { \prime } \approx 4–6 , corresponding to masses as low as \sim 20 M _ { Jup } and mass ratios of q \sim 0.01-0.08 , depending on the assumed age of the target stars .
With projected separations \rho \sim 10-30 AU , our aperture masking detections sample an orbital region previously unprobed by conventional adaptive optics imaging of intermediate mass Scorpius-Centaurus stars covering much larger orbital radii ( \sim 30-3000 AU ) .
At such orbital separations , these objects resemble higher mass versions of the directly imaged planetary mass companions to the 10-30 Myr , intermediate-mass stars HR 8799 , \beta Pictoris , and HD 95086 .
These newly discovered companions span the brown dwarf desert , and their masses and orbital radii provide a new constraint on models of the formation of low-mass stellar and substellar companions to intermediate-mass stars .