{"paper":{"title":"Photo-dynamical mass determination of the multi-planetary system K2-19","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Rajpurohit, A. Santerne, A. S. Bonomo, B. Courcol, C. Moutou, D. Barrado, D. Brown, D. J. Armstrong, D. Pollacco, D. Toublanc, F. Bouchy, G. Bruno, G. H\\'ebrard, H. Osborn, I. Boisse, J.C. Lachuri\\'e, J. Kirk, J. Lillo-Box, J. M. Almenara, J. McCormac, J.-P. Rivet, J. Rey Cerda, J. Spake, K. W. F. Lam, L. Abe, M. Deleuil, M. Tsantaki, O. Demangeon, O. Suarez, P. Andre, P. Bendjoya, P. Martinez, R. F. D\\'iaz, S. C. C. Barros, S. R. Walker","submitted_at":"2015-10-05T07:01:40Z","abstract_excerpt":"K2-19 is the second multi-planetary system discovered with K2 observations. The system is composed of two Neptune size planets close to the 3:2 mean-motion resonance. To better characterise the system we obtained two additional transit observations of K2-19b and five additional radial velocity observations. These were combined with K2 data and fitted simultaneously with the system dynamics (photo-dynamical model) which increases the precision of the transit time measurements. The higher transit time precision allows us to detect the chopping signal of the dynamic interaction of the planets tha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.01047","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"}