{"paper":{"title":"OGLE-2018-BLG-0022: First Prediction of an Astrometric Microlensing Signal from a Photometric Microlensing Event","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Akihiko Fukui, Andrew Gould, Andrzej Udalski, Aparna Bhattacharya, Arnaud Cassan, Atsunori Yonehara, B. Scott Gaudi, Byeong-Gon Park, Calen B. Henderson, Charles A. Beichman, 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, Geoffery Bryden, Haruno Suematsu, Hyoun-Woo Kim, Ian A. Bond, Igor Soszy\\'nski, In-Gu Shin, Iona Kondo, Jan Skowron, Jennifer C. Yee, Kohei Kawasaki, Krzysztof A. Rybicki, Krzysztof Ulaczyk, 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, Patryk Iwanek, Paul J. Tristram, Pawe{\\l} Pietrukowicz, Przemek Mr\\'oz, Radek Poleski, Richard Barry, Richard W. Pogge, Sean Carey, Sebastiano Calchi Novati, Seung-Lee Kim, Shota Miyazaki, Sun-Ju Chung, Szymon Koz{\\l}owski, Takahiro Sumi, Valerio Bozza, Weicheng Zang, Woong-Tae Kim Sang-Mok Cha, Yasushi Muraki, Yongseok Lee, Yoon-Hyun Ryu, Yoshitaka Itow, Yossi Shvartzvald, Youn Kil Jung, Yuki Hirao, Yutaka Matsubara","submitted_at":"2019-03-30T02:50:57Z","abstract_excerpt":"In this work, we present the analysis of the binary microlensing event OGLE-2018-BLG-0022 that is detected toward the Galactic bulge field. The dense and continuous coverage with the high-quality photometry data from ground-based observations combined with the space-based {\\it Spitzer} observations of this long time-scale event enables us to uniquely determine the masses $M_1=0.40 \\pm 0.05~M_\\odot$ and $M_2=0.13\\pm 0.01~M_\\odot$ of the individual lens components. Because the lens-source relative parallax and the vector lens-source relative proper motion are unambiguously determined, we can lik"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.00139","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":""},"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"}