{"paper":{"title":"OGLE-2015-BLG-1649Lb: A gas giant planet around a low-mass dwarf","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Akihiko Fukui, Andrzej Udalski, Aparna Bhattacharya, Arnaud Cassan, A. Yonehara, Chien-Hsiu Lee, Cl\\'ement Ranc, Colin Snodgrass, Daisuke Suzuki, Dan Bramich, Daniel Evans, David Bennett, Denis Sullivan, Etienne Bachelet, Fumio Abe, Giuseppe D'Ago, Haruno Suematsu, Heidi Korhonen, H. Fujii, Hiroshi Shibai, Iain Steele, Ian A. Bond, Iona Kondo, I. Soszy\\'nski, Jan Skowron, Jean-Philippe Beaulieu, Jesper Skottfelt, Joachim Wambsganss, John Menzies, John Southworth, K. Horne, Krzysztof Ulaczyk, Man Cheung Alex Li, Markus Hundertmark, Markus Rabus, Martin Dominik, Martin Donachie, Masayuki Nagakane, M. Burgdorf, M.I. Andersen, M. Szyma\\'nski, Naoki Koshimoto, Nicholas J. Rattenbury, Nuno Peixinho, Pawel Pietrukowicz, P. Long\\~a, P. Mr\\'oz, P. Tristram, Rachel Street, Rados{\\l}aw Poleski, Richard Barry, R. Jaimes, R. Schmidt, Shota Miyazaki, Shude Mao, Sohrab Rahvar, Szymon Koz{\\l}owski, Takahiro Sumi, Taro Matsuo, Tobias Hinse, T. Yamakawa, Uffe J{\\o}rgensen, Valerio Bozza, Yasushi Muraki, Yiannis Tsapras, Y. Kamei, Y. Matsubara, Yoshitaka Itow, Yuki Hirao","submitted_at":"2019-07-25T07:38:59Z","abstract_excerpt":"We report the discovery of an exoplanet in microlensing event OGLE-2015-BLG-1649. The planet/host-star mass ratio is $q =7.2 \\times 10^{-3}$ and the projected separation normalized by the Einstein radius is $s = 0.9$. The upper limit of the lens flux is obtained from adaptive optics observations by IRCS/Subaru, which excludes the probability of a G-dwarf or more massive host star and helps to put a tighter constraint on the lens mass as well as commenting on the formation scenarios of giant planets orbiting low-mass stars. We conduct a Bayesian analysis including constraints on the lens flux t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.11536","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1907.11536/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}