{"paper":{"title":"The size, shape, density and ring of the dwarf planet Haumea from a stellar occultation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.EP","authors_text":"A. Alvarez-Candal, A. Campo Bagatin, A. Carbognani, A. Cikota, A. Kabas, A. Marciniak, A. P\\'al, A. R. Gomes-Junior, A. S\\'anchez-Lavega, A. Tak\\'acsn\\'e Farkas, B. E. Morgado, B. Gaehrken, B. Sicardy, C. Kiss, C. Puskullu, C. Ries, C. Yesilyaprak, D. B\\'erard, D. T. Koseoglu, E. Fern\\'andez-Valenzuela, E. Meza, E. Sonbas, E. Varga-Vereb\\'elyi, F. Braga-Ribas, F. Ciabattari, F. Colas, F. L. Rommel, F. Martinelli, F. Marzari, F. Roques, F. Vachier, G. Benedetti-Rossi, G. Dudzi\\'nski, G. Leto, G. Marton, G. Succi, H. Mikuz, J. Alikakos, J. Berthier, J. C. Guirado, J. Desmars, J. I. B. Camargo, J. Lecacheux, J. L. Ortiz, J. M. Christille, J. M. Madiedo, J. Ohlert, K. Gazeas, K. Hornoch, L. Mazzei, L. Nerli, L. Tzouganatos, M. Assafin, M. Bachini, M. Butkiewicz-B\\k{a}k, M. Maestripieri, M. S. Niaei, N. Karaman, N. Morales, N. Paschalis, O. Demircan, O. Erece, O. Satir, O. Unsalan, P. Bacci, P. Bartczak, P. Pravec, P. Santos-Sanz, R. Behrend, R. Duffard, R. Hueso, R. Iglesias-Marzoa, R. Kom\\v{z}\\'ik, R. Szak\\'ats, R. Vieira-Martins, S. Cikota, S. Hellmic, S. Kalkan, S. Mottola, S. P\\'erez-Hoyos, T. G. Mueller, T. Ozisik, T. Pribulla, T. Santana-Ros, U. Hopp, V. Al\\'i-Lagoa, V. Charmandaris, V. Granata, V. Nascimbeni, V. Peris, V. Tsamis, W. Beisker, Y. Guney","submitted_at":"2020-06-04T19:59:42Z","abstract_excerpt":"Among the four known transneptunian dwarf planets, Haumea is an exotic, very elongated, and fast rotating body. In contrast to the other dwarf planets, its size, shape, albedo, and density are not well constrained. Here we report results of a multi-chord stellar occultation, observed on 2017 January 21. Secondary events observed around the main body are consistent with the presence of a ring of opacity 0.5, width 70 km, and radius 2,287$_{-45}^{+75}$ km. The Centaur Chariklo was the first body other than a giant planet to show a ring system and the Centaur Chiron was later found to possess som"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.03113","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2006.03113/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}