The target selection that use proper motion accelerations (PMA) measured by the Hipparcos and Gaia astrometry allow us to more likely list host stars accompanying co-moving companions. Thus, high-contrast direct imaging surveys adopting this target selection have more efficiently found substellar companions than conventional blind surveys, as demonstrated by recent discoveries of benchmark substellar companions (e.g., Currie et al. 2020; Kuzuhara et al. 2022; Currie et al. 2023). The target selections are sensitive to the detection of Jupiter-like companions, in line with direct imaging capabilities of SCExAO/CHARIS. We carry out this new-concept survey with the new targets with youth confirmed by their rapid rotations (i.e., gyrochronology) or physical associations with the Hyades open cluster. We select 7 Sun-like stars as young as 30–750 Myr. For a detected companion, we derive its dynamical mass with all the available data including PMA and imaging, and the CHARIS near-infrared spectrum reveals its atmospheric properties. Those analyzes enable the constraints on the atmosphere/evolutionary models of substellar objects.
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