{"paper":{"title":"Candidate Brown-dwarf Microlensing Events with Very Short Timescales and Small Angular Einstein Radii","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Akihiko Fukui, Andrew Gould, Andrzej Udalski, Aparna Bhattacharya, 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, Hikaru Shoji, Hirosane Fujii, Hyoun-Woo Kim, Ian A. Bond, Igor Soszy\\'nski, In-Gu Shin, Iona Kondo, Jan Skowron, Jennifer C. Yee, 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, M. James Jee, Naoki Koshimoto, Nicholas J. Rattenbury, 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, Sun-Ju Chung, Szymon Koz{\\l}owski, Takahiro Sumi, Takeharu Yamakawa, Tsubasa Yamawaki, Valerio Bozza, Weicheng Zang, Yasushi Muraki, Yongseok Lee, Yoon-Hyun Ryu, Yoshitaka Itow, Yossi Shvartzvald, Youn Kil Jung, Yuhei Kamei, Yuki Hirao, Yuki Satoh, Yutaka Matsubara","submitted_at":"2019-10-24T08:30:41Z","abstract_excerpt":"Short-timescale microlensing events are likely to be produced by substellar brown dwarfs (BDs), but it is difficult to securely identify BD lenses based on only event timescales $t_{\\rm E}$ because short-timescale events can also be produced by stellar lenses with high relative lens-source proper motions. In this paper, we report three strong candidate BD-lens events found from the search for lensing events not only with short timescales ($t_{\\rm E} \\lesssim 6~{\\rm days}$) but also with very small angular Einstein radii ($\\theta_{\\rm E}\\lesssim 0.05~{\\rm mas}$) among the events that have been "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.10974","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1910.10974/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"}