{"paper":{"title":"ALMA Discovery of Dust Belts Around Proxima Centauri","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Anita M. S. Richards, Antxon Alberdi, Cristina Rodr\\'iguez-L\\'opez, Eloy Rodriguez, Enrique Mac\\'ias, Guillem Anglada, Guillem Anglada-Escud\\'e, Ignasi Ribas, Itziar de Gregorio-Monsalvo, Izaskun Jimenez-Serra, James S. Jenkins, Jos\\'e F. G\\'omez, Jos\\'e L. G\\'omez, Jose L. Ortiz, Luisa M. Lara, Manuel L\\'opez-Puertas, Maria J. L\\'opez-Gonz\\'alez, Mayra Osorio, Miguel A. P\\'erez-Torres, Nicolas Morales, Pedro J. Amado, Zaira M. Berdi\\~nas","submitted_at":"2017-11-02T00:42:00Z","abstract_excerpt":"Proxima Centauri, the star closest to our Sun, is known to host at least one terrestrial planet candidate in a temperate orbit. Here we report the ALMA detection of the star at 1.3 mm wavelength and the discovery of a belt of dust orbiting around it at distances ranging between 1 and 4 au, approximately. Given the low luminosity of the Proxima Centauri star, we estimate a characteristic temperature of about 40 K for this dust, which might constitute the dust component of a small-scale analog to our solar system Kuiper belt. The estimated total mass, including dust and bodies up to 50 km in siz"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.00578","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"}