{"paper":{"title":"Search for Low-Mass Exoplanets by Gravitational Microlensing at High Magnification","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Gal-Yam, A. Rakich, A. Udalski, D.J. Sullivan, D. Maoz, D.P. Bennett, E.O. Ofek, F. Abe, G. Pietrzynski, I.A. Bond, I. Soszynski, J.B. Hearnshaw, K. Kamiya, K. Masuda, K. Okajima, K. Zebrun, L. Wyrzykowski, M.K. Szymanski, M. Kubiak, N.J. Rattenbury, O. Szewczyk, P.C.M. Yock, P.J. Tristram, P.M. Kilmartin, S. Eguchi, S. Noda, T. Sako, T. Sekiguchi, T. Sumi, T. Yanagisawa, Y. Furuta, Y. Kurata, Y. Lipkin, Y. Matsubara, Y. Muraki","submitted_at":"2004-09-02T10:05:57Z","abstract_excerpt":"Observations of the gravitational microlensing event MOA 2003-BLG-32/OGLE 2003-BLG-219 are presented for which the peak magnification was over 500, the highest yet reported. Continuous observations around the peak enabled a sensitive search for planets orbiting the lens star. No planets were detected. Planets 1.3 times heavier than Earth were excluded from more than 50 % of the projected annular region from approximately 2.3 to 3.6 astronomical units surrounding the lens star, Uranus-mass planets from 0.9 to 8.7 astronomical units, and planets 1.3 times heavier than Saturn from 0.2 to 60 astro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0409043","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/astro-ph/0409043/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"}