{"paper":{"title":"Ground-based parallax confirmed by Spitzer: binary microlensing event MOA-2015-BLG-020","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Bhattacharya, A. Cassan, A. Fukui, A. Gould, A. Sharan, A. Udalski, A. Yonehara, B.-G. Park, B. S. Gaudi, B. Wibking, C. Beichman, C. B. Henderson, C. Han, C.H. Ling, C. Ranc, C. Snodgrass, C.-U. Lee, D.-J. Kim, D.J. Sullivan, D. M. Bramich, D. P. Bennett, D. Suzuki, E. Bachelet, F. Abe, G. Bryden, H. Shibai, H.-W. Kim, I. A. Bond, I. A. Steele, I.-G. Shin, I. Soszynski, J. C. Yee, J. Menzies, J. Skowron, J. Wambsganss, K.-H. Hwang, K. Horne, K. Kawasaki, K. Masuda, K. Ohnishi, K. Ulaczyk, M.C.A. Li, M. D. Albrow, M. Dominik, M. Donachie, M. Fausnaugh, M. Hundertmark, M. K. Szymanski, M. Nagakane, M. Pawlak, N. Koshimoto, N. Rattenbury, P. Evans, P.J.Tristram, P. Mroz, P. Pietrukowicz, R. A. Street, R. Barry, R. Figuera Jaimes, R. Poleski, R. Schmidt, R. W. Pogge, S. Calchi Novati, S. Carey, Shude Mao, S.-J. Chung, S. Kozlowski, S.-L. Kim, S.-M. Cha, S. Miyazaki, Tianshu Wang, To. Saito, T. Sumi, T. Yamada, V. Bozza, Wei Zhu, Y. Asakura, Y. Hirao, Y.-H. Ryu, Y. Itow, Y. K. Jung, Y. Matsubara, Y. Muraki, Y. Shvartzvald, Y. Tsapras, Y. Yee","submitted_at":"2017-07-24T20:26:15Z","abstract_excerpt":"We present the analysis of the binary gravitational microlensing event MOA-2015-BLG-020. The event has a fairly long timescale (about 63 days) and thus the light curve deviates significantly from the lensing model that is based on the rectilinear lens-source relative motion. This enables us to measure the microlensing parallax through the annual parallax effect. The microlensing parallax parameters constrained by the ground-based data are confirmed by the Spitzer observations through the satellite parallax method. By additionally measuring the angular Einstein radius from the analysis of the r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.07737","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":""},"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"}