{"paper":{"title":"Using Orbital Effects to Break the Close/wide Degeneracy in Binary-lens Microlensing Events","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Fukui, A. Gould, A. Udalski, C. Han, C. H. Ling, C. S. Botzler, D. J. Sullivan, D. P. Bennett, D. Suzuki, F. Abe, G. Pietrzy\\'nski, I. A. Bond, I.-G. Shin, I. Soszy\\'nski, J. Skowron, J.-Y. Choi, K. Furusawa, K. Masuda, K. Ohnishi, K. Ulaczyk, K. Wada, {\\L}. Wyrzykowski, M. Freeman, M. K. Szyma\\'nski, M. Kubiak, N. Miyake, N. Rattenbury, P. Chote, P. C. M. Yock, P. Harris, P. J. Tristram, P. Pietrukowicz, R. Poleski, S. Koz{\\l}owski, To. Saito, T. Sumi, W. L. Sweatman, Y. Itow, Y. Matsubara, Y. Muraki","submitted_at":"2012-10-16T07:09:59Z","abstract_excerpt":"Microlensing can provide an important tool to study binaries, especially those composed of faint or dark objects. However, accurate analysis of binary-lens light curves is often hampered by the well-known degeneracy between close (s<1) and wide (s>1) binaries, which can be very severe due to an intrinsic symmetry in the lens equation. Here s is the normalized projected binary separation. In this paper, we propose a method that can resolve the close/wide degeneracy using the effect of a lens orbital motion on lensing light curves. The method is based on the fact that the orbital effect tends to"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.4269","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"}