The SPHERE infrared survey for exoplanets (SHINE)

Context. In recent decades, direct imaging has confirmed the existence of substellar companions (exoplanets or brown dwarfs) on wide orbits (>10 au) around their host stars. striving to understand formation and evolution mechanisms, in 2015 we initiated SPHERE infrared survey for exoplanets (SHINE), a systematic young, nearby stars that is targeted at exploring demographics. Aims. We aim detect characterize population giant planets dwarfs beyond snow line Combined with completeness, our observations offer opportunity constrain statistical properties (occurrence, mass orbital distributions, dependency stellar mass) these young planets. Methods. this study, present observing data analysis strategy, ranking process detected candidates, performances subsample 150 are representative full SHINE sample. Observations were conducted homogeneous way between February 2017 dedicated ground-based VLT/SPHERE instrument equipped IFS integral field spectrograph IRDIS dual-band imager, covering spectral range 0.9 2.3 ?m. used coronographic, angular, differential techniques achieve best detection down planetary regime. Results. processed, uniform manner, more than 300 datasets assess typical sensitivity as function star conditions. The median performance reached 5 ? -contrasts 13 mag 200 mas 14.2 800 ( YJ YJH bands), 11.8 mas, 13.1 15.8 3 H band, delivering one deepest surveys thus far A total sixteen imaged first part SHINE: seven dwarf ten planetary-mass companions.These include two new discoveries, HIP 65426 b 64892 B, but not PDS70 had been originally selected core 1483 candidates detected, mainly large view characterizes IRDIS. color-magnitude diagrams, low-resolution spectrum (when available IFS), follow-up enabled us identify nature (background contaminant comoving companion) about 86% subsample. remaining cases often connected crowded-field missing. Finally, even though was initially designed disk searches, twelve circumstellar disks, including three detections 73145, 86598, HD 106906 systems. Conclusions. Nowadays, provides unique probe outer exoplanetary systems 10 au explore architectures, highlighted by discoveries of: exoplanet, companion, debris disks during early phase SHINE. It also offers revisit physical (relative position, photometry, near-infrared, predicted masses, contrast order search additional companions). results highlight importance finalizing observation 500 exploration demographics most interesting next generation high-contrast imagers very extremely telescopes.