{"paper":{"title":"Mapping of shadows cast on a protoplanetary disk by a close binary system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Boccaletti, A.-L. Maire, A. M. Lagrange, A. Roux, A. Vigan, A. Zurlo, C. Perrot, C. Thalmann, D. Mesa, D. Mouillet, E. Buenzli, E. Giro, E. Rigliaco, E. Sissa, F. Menard, G. Chauvin, G. Salter, G. Van Der Plas, H. Avenhaus, H. Jang-Condell, J. E. Schlieder, J. Girard, J. Hagelberg, J. Lannier, J. Ramos, J. Szulagyi, L. Rodet, M. Benisty, M. Bonnefoy, M. Damasso, M. Feldt, M. Janson, M. Langlois, O. Moeller-Nilsson, P. Rabou, P. Thebault, Q. Kral, R. Galicher, R. Gratton, R. Roelfsema, S. Benatti, S. Daemgen, S. Desidera, S. Peretti, T. Bhowmik, T. Scatolin, T. Schmidt, T. Stolker, V. D'Orazi, W. Brandner","submitted_at":"2018-11-26T19:00:02Z","abstract_excerpt":"For a comprehensive understanding of planetary formation and evolution, we need to investigate the environment in which planets form: circumstellar disks. Here we present high-contrast imaging observations of V4046 Sagittarii, a 20-Myr-old close binary known to host a circumbinary disk. We have discovered the presence of rotating shadows in the disk, caused by mutual occultations of the central binary. Shadow-like features are often observed in disks\\cite{garufi,marino15}, but those found thus far have not been due to eclipsing phenomena. We have used the phase difference due to light travel t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.10621","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"}