{"paper":{"title":"The VLT/NaCo large program to probe the occurrence of exoplanets and brown dwarfs at wide orbits. IV. Gravitational instability rarely forms wide, giant planets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Boccaletti, A.-M. Lagrange, A. Vigan, A. Zurlo, B. Biller, C. Mordasini, C. Moutou, C. Thalmann, D. Forgan, D. Mesa, D. Mouillet, D. Segransan, E. Buenzli, E. Covino, G. Chauvin, G. Montagnier, H. Le Coroller, J. Carson, J.-C. Meunier, J. E. Schlieder, J. Hagelberg, J. H. V. Girard, J.-L. Beuzit, K. Rice, M. Bonavita, M. Bonnefoy, M. Feldt, M. Janson, M. Kasper, M. Meyer, M. Reggiani, P. Delorme, R. Gratton, S. Desidera, S. Messina, S. P. Quanz, T. Henning","submitted_at":"2017-03-15T18:00:00Z","abstract_excerpt":"Understanding the formation and evolution of giant planets ($\\ge$1 $M_{Jup}$) at wide orbital separation ($\\ge$5 AU) is one of the goals of direct imaging. Over the past 15 years, many surveys have placed strong constraints on the occurrence rate of wide-orbit giants, mostly based on non-detections, but very few have tried to make a direct link with planet formation theories. In the present work, we combine the results of our previously published VLT/NaCo large program with the results of 12 past imaging surveys to constitute a statistical sample of 199 FGK stars within 100 pc, including 3 sta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.05322","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}