{"paper":{"title":"Spectroscopic Mass and Host-star Metallicity Measurements for Newly Discovered Microlensing Planet OGLE-2018-BLG-0740Lb","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Akihiko Fukui, Andrew Gould, Andrzej Udalski, Aparna Bhattacharya, Arnaud Cassan, Atsunori Yonehara, Byeong-Gon Park, Cheongho Han, Chung-Uk Lee, Cl\\'ement Ranc, Daisuke Suzuki, David P. Bennett, Denis J. Sullivan, Doeon Kim, Dong-Jin Kim, Dong-Joo Lee, Fumio Abe, Haruno Suematsu, Hyoun-Woo Kim, Ian A. Bond, Igor Soszy\\'nski, In-Gu Shin, Iona Kondo, Jan Skowron, Jennifer C. Yee, Juna A. Kollmeier, Kohei Kawasaki, Konstantina Boutsia, Krzysztof A. Rybicki, Krzysztof Ulaczyk, Kyeongsoo Hong, Kyu-Ha Hwang, Man Cheung Alex Li, Marcin Wrona, Martin Donachie, Masayuki Nagakane, Michael D. Albrow, Micha{\\l} K. Szyma\\'nski, Naoki Koshimoto, Nicholas J. Rattenbury, Nidia Morrell, Patryk Iwanek, Paul J. Tristram, Pawe{\\l} Pietrukowicz, Przemek Mr\\'oz, Radek Poleski, Richard Barry, Richard W. Pogge, Sang-Mok Cha, Seung-Lee Kim, Shota Miyazaki, Subo Dong, Sun-Ju Chung, Szymon Koz{\\l}owski, Takahiro Sumi, Valerio Bozza, Weicheng Zang, Woong-Tae Kim, Yasushi Muraki, Yongseok Lee, Yoon-Hyun Ryu, Yoshitaka Itow, Yossi Shvartzvald, Youn Kil Jung, Yuki Hirao, Yutaka Matsubara","submitted_at":"2019-05-01T01:22:25Z","abstract_excerpt":"We report the discovery of the microlensing planet OGLE-2018-BLG-0740Lb. The planet is detected with a very strong signal of $\\Delta\\chi^2\\sim 4630$, but the interpretation of the signal suffers from two types of degeneracies. One type is caused by the previously known close/wide degeneracy, and the other is caused by an ambiguity between two solutions, in which one solution requires to incorporate finite-source effects, while the other solution is consistent with a point-source interpretation. Although difficult to be firmly resolved based on only the photometric data, the degeneracy is resol"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.00155","kind":"arxiv","version":2},"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/1905.00155/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"}