{"paper":{"title":"The GAPS Programme with HARPS-N at TNG XVIII. Two new giant planets around the metal-poor stars HD 220197 and HD 233832","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Bignamini, A.F. Lanza, A. Harutyunyan, A. Maggio, A. Martinez Fiorenzano, A.S. Bonomo, A. Sozzetti, D. Barbato, E. Covino, E. Gonz\\'alez-\\'Alvarez, E. Molinari, E. Poretti, F. Borsa, G. Leto, G. Micela, G. Piotto, G. Scandariato, I. Carleo, I. Pagano, J. Maldonado, J.P. Faria, K. Biazzo, L. Affer, L. Di Fabrizio, L. Malavolta, L. Mancini, L.S. Colombo, M. Damasso, M. Esposito, M. Molinaro, M. Pedani, M. Pinamonti, M. Rainer, N.C. Santos, P. Giacobbe, R. Claudi, R. Cosentino, R. Gratton, R. Smareglia, S. Benatti, S. Desidera, S. Masiero, V. Nascimbeni","submitted_at":"2018-11-19T16:20:11Z","abstract_excerpt":"Statistical studies of exoplanets have shown that giant planets are more commonly hosted by metal-rich dwarf stars than low-metallicity ones, while such a correlation is not evident for lower-mass planets. The search for giant planets around metal-poor stars and the estimate of their occurrence $f_p$ is an important element in providing support to models of planet formation. We present results from the HARPS-N search for giant planets orbiting metal-poor ($-1.0\\leq[Fe/H]\\leq-0.5$ dex) stars in the northern hemisphere complementing a previous HARPS survey on southern stars in order to update th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.07776","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"}