{"paper":{"title":"OGLE-2012-BLG-0950Lb: The First Planet Mass Measurement from Only Microlens Parallax and Lens Flux","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Bhattacharya, A. Fukui, A. Sharan, A. Udalski, A. Yonehara, C.H. Ling, D.J. Sullivan, D.P. Bennett, D. Suzuki, F. Abe, H. Oyokawa, H. Shibai, I.A. Bond, I. Soszynski, J.B. Marquette, J.P. Beaulieu, J. Skowron, K. Masuda, K. Ohnishi, K. Ulaczyk, L. Wyrzykowski, M.C.A. Li, M. Donachie, M. Freeman, M.K. Szymanski, N. Koshimoto, N. Rattenbury, P.J. Tristram, P. Pietrukowicz, R. Poleski, S.Brillant, S. Kozlowski, T. Matsuo, To. Saito, T.Sumi, V. Batista, Y. Asakura, Y. Hirao, Y. Itow, Y. Matsubara, Y. Muraki","submitted_at":"2016-07-12T08:53:48Z","abstract_excerpt":"We report the discovery of a microlensing planet OGLE-2012-BLG-0950Lb with the planet/host mass ratio of $q \\sim 2 \\times 10^{-4}$. A long term distortion detected in both MOA and OGLE light curve can be explained by the microlens parallax due to the Earth's orbital motion around the Sun. Although the finite source effect is not detected, we obtain the lens flux by the high resolution Keck AO observation. Combining the microlens parallax and the lens flux reveal the nature of the lens: a planet with mass of $M_{\\rm p} = 35^{+17}_{-9} M_{\\oplus}$ is orbiting around a M-dwarf with mass of $M_{\\r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.03267","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"}