{"paper":{"title":"WFIRST Exoplanet Mass Measurement Method Finds a Planetary Mass of $39\\pm 8 M_\\oplus$ for OGLE-2012-BLG-0950Lb","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Bhattacharya, A. Fukui, A. Udalski, C. B. Henderson, C. Ranc, D. P. Bennett, I. A. Bond, J. Anderson, J. B. Marquette, J. P. Beaulieu, J. R. Lu, J. W. Blackman, N. Koshimoto, P. Mroz, V. Batista, Y. Hirao","submitted_at":"2018-09-07T20:01:20Z","abstract_excerpt":"We present the analysis of the simultaneous high resolution images from the {\\it Hubble Space Telescope} and Keck Adaptive Optics system of the planetary event OGLE-2012-BLG-0950 that determine that the system consists of a $0.58 \\pm 0.04 \\rm{M}_\\odot$ host star orbited by a $39\\pm 8 \\rm{M}_\\oplus$ planet of at projected separation of $2.54 \\pm 0.23\\,$AU. The planetary system is located at a distance of $2.19\\pm 0.23$ kpc from Earth. This is the second microlens planet beyond the snow line with a mass measured to be in the mass range $20$--$80 \\rm{M}_\\oplus$. The runaway gas accretion process "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.02654","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":""},"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"}