{"paper":{"title":"Spitzer Opens New Path to Break Classic Degeneracy for Jupiter-Mass Microlensing Planet OGLE-2017-BLG-1140Lb","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. Gould, A. Udalski, B.-G. Park, B. S. Gaudi, C. Beichman, C. B. Henderson, C. Han, C.-U. Lee, D.-J. Kim, D.-J. Lee, G. Bryden, H.-W. Kim, I.-G. Shin, I. Soszy\\'nski, J. C. Yee, J. Skowron, K.-H. Hwang, K. Rybicki, K. Ulaczyk, M. D. Albrow, M. K. Szyma\\'nski, M. Pawlak, P. Iwanek, P. Mr\\'oz, P. Pietrukowicz, R. Poleski, R. W. Pogge, S. Calchi Novati, S. Carey, S.-J. Chung, S. Koz{\\l}owski, S.-L. Kim, S.-M. Cha, W. Zang, W. Zhu, Y.-H. Ryu, Y. K. Jung, Y. Lee, Y. Shvartzvald","submitted_at":"2018-03-12T18:12:45Z","abstract_excerpt":"We analyze the combined Spitzer and ground-based data for OGLE-2017-BLG-1140 and show that the event was generated by a Jupiter-class $(m_p\\simeq 1.6\\,M_{\\rm jup})$ planet orbiting a mid-late M dwarf $(M\\simeq 0.2\\,M_\\odot)$ that lies $D_{LS}\\simeq 1.0\\,\\mathrm{kpc}$ in the foreground of the microlensed, Galactic-bar, source star. The planet-host projected separation is $a_\\perp \\simeq 1.0\\,\\mathrm{au}$, i.e., well-beyond the snow line. By measuring the source proper motion ${\\mathbf{\\mu}}_s$ from ongoing, long-term OGLE imaging, and combining this with the lens-source relative proper motion $"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.04437","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"}