{"paper":{"title":"OGLE-2005-BLG-153: Microlensing Discovery and Characterization of A Very Low Mass Binary","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Cassan, A. Gould, A. Udalski, A. Williams, B.-G. Park, B. S. Gaudi, C. Coutures, C. Han, C. Okada, C. S. Botzler, C. Snodgrass, C.-U. Lee, C. Vinter, D. Dominis, D. J. Sullivan, D. Kubas, D. L. DePoy, D. M. Bramich, D. P. Bennett, E. Corrales, F. Abe, G. Pietrzynski, I. A. Bond, I. Soszynski, I. Steele, J. A. R. Caldwell, J. B. Hearnshaw, J.-B. Marquette, J. Donatowicz, J. Greenhill, J. J. Calitz, J. Menzies, J. N. Wood, J.-P. Beaulieu, J. Wambsganss, K. Harpsoe, K. H. Cook, K.-H. Hwang, K. Hill, K. Horne, K. Kamiya, K. Masuda, K. Ohnishi, K. Pollard, K. Sahu, K. Ulaczyk, K. Woller, L. Wyrzykowski, M. Albrow, M. Bode, M. Burgdorf, M. Desort, M. Dominik, M. Hoffman, M. K. Szymanski, M. Kubiak, M. Motomura, M. Sasaki, N. Rattenbury, O. Szewczyk, P. C. M. Yock, P. Fouque, P. J. Tristram, P. Meintjes, P. M. Kilmartin, R. Martin, R. W. Pogge, S. Brillant, S. Dieters, S. Kane, S. Nakamura, To. Saito, T. Sako, T. Sumi, T. Yoshioka, U. G. Jorgensen, Y.-H. Ryu, Y. Itow, Y. Matsubara, Y. Muraki","submitted_at":"2010-09-02T07:50:22Z","abstract_excerpt":"The mass function and statistics of binaries provide important diagnostics of the star formation process. Despite this importance, the mass function at low masses remains poorly known due to observational difficulties caused by the faintness of the objects. Here we report the microlensing discovery and characterization of a binary lens composed of very low-mass stars just above the hydrogen-burning limit. From the combined measurements of the Einstein radius and microlens parallax, we measure the masses of the binary components of $0.10\\pm 0.01\\ M_\\odot$ and $0.09\\pm 0.01\\ M_\\odot$. This disco"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.0344","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"}