{"paper":{"title":"The GAPS Programme with HARPS-N@TNG VI: The Curious Case of TrES-4b","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. F. Lanza, A. F. Martinez Fiorenzano, A. Maggio, A. S. Bonomo, A. Sozzetti, C. Boccato, C. Knapic, C. Mordasini, D. Gandolfi, D.W. Latham, E. Molinari, E. Poretti, E. Shkolnik, F. Borsa, F. Marzari, F. Pepe, G. Lodato, G. Micela, G. Piotto, G. Scandariato, I. Pagano, J. Maldonado, J. Southworth, K. Biazzo, L. Affer, L. Malavolta, L. Mancini, L. R. Bedin, M. Barbieri, M. Bonavita, M. Damasso, M. Pedani, M. Rainer, N. Santos, P. Giacobbe, R. Gratton, R. U. Claudi, S. Ciceri, S. Desidera, T. Henning, V. Nascimbeni","submitted_at":"2015-01-26T14:10:14Z","abstract_excerpt":"We revisit the TrES-4 system parameters based on high-precision HARPS-N radial-velocity measurements and new photometric light curves. A combined spectroscopic and photometric analysis allows us to determine a spectroscopic orbit with an amplitude $K=51\\pm3$ m s$^{-1}$. The derived mass of TrES-4b is found to be $M_{\\rm p} = 0.49\\pm0.04 \\rm M_{Jup}$, significantly lower than previously reported. Combined with the large radius ($R_{\\rm p} = 1.84_{-0.09}^{+0.08} \\rm R_{Jup}$) inferred from our analysis, TrES-4b becomes the second-lowest density transiting hot Jupiter known. We discuss several sc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.06403","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"}