The SPHERE infrared survey for exoplanets (SHINE) V. Full sample characterization
Abstract
Unbiased surveys of large stellar samples are the prime means through which the prevalence of exoplanets can be derived, and crucial constraints to planet formation models can be set. Direct imaging (DI) is ideally positioned to probe the outer regions (5-300au) of planetary systems, providing complementary information to techniques such as transits and radial velocities. We present the full sample of the SpHere INfrared survey for Exoplanets (SHINE), the second largest DI campaign to date. SHINE observed 460 stars between 2015 and 2023 thanks to the guaranteed time observations (GTO) allocated by ESO to the SPHERE consortium at VLT. The goal of this paper is to homogeneously derive the stellar properties of the targets and to define a subsample of young single hosts to be used as a starting point for the final statistical analysis of the survey. Stellar ages were determined based on kinematic indicators (such as the membership to young moving groups), age diagnostics (lithium abundance, rotation, activity), and isochrone fitting. A thorough vetting for binarity was undertaken combining astrometric, spectroscopic, and imaging data. A subsample of 333 stars, covering a large extent of stellar ages and masses, was constructed. Selection criteria, global features, as well as the properties of individual stars are reported and discussed.
Cite
@article{arxiv.2605.27247,
title = {The SPHERE infrared survey for exoplanets (SHINE) V. Full sample characterization},
author = {V. Squicciarini and S. Desidera and G. Chauvin and F. Kiefer and V. D'Orazi and C. Fontanive and A. Vigan and D. Nardiello and S. Messina and D. Albert and S. Bergeon and J. -L. Beuzit and B. Biller and A. Boccaletti and M. Bonavita and M. Bonnefoy and W. Brandner and F. Cantalloube and A. Cheetham and P. Delorme and C. Dominik and M. Feldt and R. Galicher and R. Gratton and J. Hagelberg and Th. Henning and M. Janson and E. Lagadec and A. -M. Lagrange and M. Langlois and C. Lazzoni and H. Le Coroller and R. Ligi and A. -L. Maire and G. -D. Marleau and F. Ménard and D. Mesa and N. Meunier and M. Meyer and C. Mordasini and C. Moutou and A. Müller and C. Perrot and M. Samland and H. M. Schmid and T. Schmidt and E. Sissa and M. Turatto and S. Udry and A. Zurlo and L. Abe and J. Antichi and A. Baruffolo and P. Baudoz and J. Baudrand and A. Bazzon and P. Blanchard and A. J. Bohn and M. Carbillet and M. Carle and E. Cascone and J. Charton and R. Claudi and A. Costille and V. De Caprio and A. Delboulbé and K. Dohlen and N. Engler and D. Fantinel and P. Feautrier and T. Fusco and P. Gigan and J. H. Girard and E. Giro and D. Gisler and L. Glück and C. Gry and N. Hubin and E. Hugot and M. Jaquet and M. Kasper and D. Le Mignant and M. Llored and F. Madec and Y. Magnard and P. Martínez and D. Maurel and O. Möller-Nilsson and D. Mouillet and T. Moulin and A. Origné and A. Pavlov and D. Perret and C. Petit and J. Pragt and P. Puget and P. Rabou and J. Ramos and F. Rigal and S. Rochat and R. Roelfsema and G. Rousset and A. Roux and B. Salasnich and J. -F. Sauvage and A. Sevin and C. Soenke and E. Stadler and M. Suárez and Z. Wahhaj and L. Weber and F. Wildi},
journal= {arXiv preprint arXiv:2605.27247},
year = {2026}
}
Comments
70 pages, 5 figures, 8 tables. Accepted for publication in A&A