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While the occurrence rate of wide giant planets appears to increase withstellar mass at least up through the A-type regime, B-type stars have not beensystematically studied in large-scale surveys so far. It therefore remainsunclear up to what stellar mass this occurrence trend continues. The B-starExoplanet Abundance Study (BEAST) is a direct imaging survey with the extremeadaptive optics instrument SPHERE, targeting 85 B-type stars in the youngScorpius-Centaurus (Sco-Cen) region with the aim to detect giant planets atwide separations and constrain their occurrence rate and physical properties.The statistical outcome of the survey will help determine if and where an upperstellar mass limit for planet formation occurs. In this work, we describe theselection and characterization of the BEAST target sample. Particular emphasisis placed on the age of each system, which is a central parameter ininterpreting direct imaging observations. We implement a novel scheme for agedating based on kinematic sub-structures within Sco-Cen, which complements andexpands upon previous age determinations in the literature. We also presentinitial results from the first epoch observations, including the detections often stellar companions, of which six were previously unknown. All planetarycandidates in the survey will need follow up in second epoch observations,which are part of the allocated observational programme and will be executed inthe near future.

BEAST begins: Sample characteristics and survey performance of the B-star Exoplanet Abundance Study