{"work":{"id":"28acfa9e-d25c-4eb2-89a6-1ebb95551c3d","openalex_id":"https://openalex.org/W2606814317","doi":"10.1051/0004-6361/201629882","arxiv_id":"1704.00373","raw_key":null,"title":"The GAPS Programme with HARPS-N@TNG XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets","authors":[{"given":"A. S.","family":"Bonomo","sequence":"first","affiliation":[]},{"given":"S.","family":"Desidera","sequence":"additional","affiliation":[]},{"given":"S.","family":"Benatti","sequence":"additional","affiliation":[]},{"given":"F.","family":"Borsa","sequence":"additional","affiliation":[]},{"given":"S.","family":"Crespi","sequence":"additional","affiliation":[]},{"given":"M.","family":"Damasso","sequence":"additional","affiliation":[]},{"given":"A. F.","family":"Lanza","sequence":"additional","affiliation":[]},{"given":"A.","family":"Sozzetti","sequence":"additional","affiliation":[]},{"given":"G.","family":"Lodato","sequence":"additional","affiliation":[]},{"given":"F.","family":"Marzari","sequence":"additional","affiliation":[]},{"given":"C.","family":"Boccato","sequence":"additional","affiliation":[]},{"given":"R. U.","family":"Claudi","sequence":"additional","affiliation":[]},{"given":"R.","family":"Cosentino","sequence":"additional","affiliation":[]},{"given":"E.","family":"Covino","sequence":"additional","affiliation":[]},{"given":"R.","family":"Gratton","sequence":"additional","affiliation":[]},{"given":"A.","family":"Maggio","sequence":"additional","affiliation":[]},{"given":"G.","family":"Micela","sequence":"additional","affiliation":[]},{"given":"E.","family":"Molinari","sequence":"additional","affiliation":[]},{"given":"I.","family":"Pagano","sequence":"additional","affiliation":[]},{"given":"G.","family":"Piotto","sequence":"additional","affiliation":[]},{"given":"E.","family":"Poretti","sequence":"additional","affiliation":[]},{"given":"R.","family":"Smareglia","sequence":"additional","affiliation":[]},{"given":"L.","family":"Affer","sequence":"additional","affiliation":[]},{"given":"K.","family":"Biazzo","sequence":"additional","affiliation":[]},{"given":"A.","family":"Bignamini","sequence":"additional","affiliation":[]},{"given":"M.","family":"Esposito","sequence":"additional","affiliation":[]},{"given":"P.","family":"Giacobbe","sequence":"additional","affiliation":[]},{"given":"G.","family":"Hébrard","sequence":"additional","affiliation":[]},{"given":"L.","family":"Malavolta","sequence":"additional","affiliation":[]},{"given":"J.","family":"Maldonado","sequence":"additional","affiliation":[]},{"given":"L.","family":"Mancini","sequence":"additional","affiliation":[]},{"given":"A.","family":"Martinez Fiorenzano","sequence":"additional","affiliation":[]},{"given":"S.","family":"Masiero","sequence":"additional","affiliation":[]},{"given":"V.","family":"Nascimbeni","sequence":"additional","affiliation":[]},{"given":"M.","family":"Pedani","sequence":"additional","affiliation":[]},{"given":"M.","family":"Rainer","sequence":"additional","affiliation":[]},{"given":"G.","family":"Scandariato","sequence":"additional","affiliation":[]}],"authors_text":"Bonomo, A","year":2017,"venue":"astro-ph.EP","abstract":"We carried out a Bayesian homogeneous determination of the orbital parameters of 231 transiting giant planets (TGPs) that are alone or have distant companions; we employed DE-MCMC methods to analyse radial-velocity (RV) data from the literature and 782 new high-accuracy RVs obtained with the HARPS-N spectrograph for 45 systems over 3 years. Our work yields the largest sample of systems with a transiting giant exoplanet and coherently determined orbital, planetary, and stellar parameters. We found that the orbital parameters of TGPs in non-compact planetary systems are clearly shaped by tides raised by their host stars. Indeed, the most eccentric planets have relatively large orbital separations and/or high mass ratios, as expected from the equilibrium tide theory. This feature would be the outcome of high-eccentricity migration (HEM). The distribution of $\\alpha=a/a_R$, where $a$ and $a_R$ are the semi-major axis and the Roche limit, for well-determined circular orbits peaks at 2.5; this also agrees with expectations from the HEM. The few planets of our sample with circular orbits and $\\alpha >5$ values may have migrated through disc-planet interactions instead of HEM. By comparing circularisation times with stellar ages, we found that hot Jupiters with $a < 0.05$ au have modified tidal quality factors $10^{5} < Q'_p < 10^{9}$, and that stellar $Q'_s > 10^{6}-10^{7}$ are required to explain the presence of eccentric planets at the same orbital distance. As a by-product of our analysis, we detected a non-zero eccentricity for HAT-P-29; we determined that five planets that were previously regarded to have hints of non-zero eccentricity have circular orbits or undetermined eccentricities; we unveiled curvatures caused by distant companions in the RV time series of HAT-P-2, HAT-P-22, and HAT-P-29; and we revised the planetary parameters of CoRoT-1b.","external_url":"https://arxiv.org/abs/1704.00373","cited_by_count":316,"metadata_source":"pith","metadata_fetched_at":"2026-06-28T20:02:35.481077+00:00","pith_arxiv_id":"1704.00373","created_at":"2026-05-08T18:44:01.041245+00:00","updated_at":"2026-06-28T20:02:35.481077+00:00","title_quality_ok":true,"display_title":"S., Desidera, S., Benatti, S., et al","render_title":"S., Desidera, S., Benatti, S., et al"},"hub":{"state":{"work_id":"28acfa9e-d25c-4eb2-89a6-1ebb95551c3d","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":15,"external_cited_by_count":316,"distinct_field_count":3,"first_pith_cited_at":"2026-04-07T08:13:25+00:00","last_pith_cited_at":"2026-06-22T16:25:34+00:00","author_build_status":"not_needed","summary_status":"needed","contexts_status":"needed","graph_status":"needed","ask_index_status":"not_needed","reader_status":"not_needed","recognition_status":"not_needed","updated_at":"2026-06-29T08:18:33.784032+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":1}],"polarity_counts":[{"context_polarity":"unclear","n":1}],"runs":{},"summary":{},"graph":{},"authors":[]}}