{"paper":{"title":"Campaign 9 of the $K2$ Mission: Observational Parameters, Scientific Drivers, and Community Involvement for a Simultaneous Space- and Ground-based Microlensing Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Bhattacharya, A. Cassan, A. Cole, A. Fukui, A. Popovas, A. Santerne, A. Sharan, A. Udalski, A. Yonehara, B. Scott Gaudi, C. A. Beichman, Calen B. Henderson, C. Coutures, C. Gelino, C.-H. Lee, C. H. Lineweaver, C. H. Ling, C. Peterson, C. Ranc, C. Snodgrass, D. A. Caldwell, David P. Bennett, David W. Hogg, D. Ciardi, D. F. Evans, D. Foreman-Mackey, D. J. Sullivan, D. Lang, D. Maoz, D. M. Bramich, D. Nataf, D. Putnam, D. Suzuki, D. Wang, E. Bachelet, E. Kerins, E. Unda-Sanzana, F. Abe, F. Mogavero, F. Mullally, F. V. Hessman, G. Barentsen, G. Bryden, G. D'Ago, G. Scarpetta, H. Korhonen, H. Oyokawa, I. A. Bond, I. A. Steele, I. Soszy\\'nski, J.-B. Marquette, J. C. Morales, J. E. Van Cleve, J.-P. Beaulieu, J. Skottfelt, J. Skowron, J. Southworth, J. Wambsganss, K. Horne, K. Larson, K. Masuda, K. McCalmont, K. Ohnishi, K. Ulaczyk, L. Mancini, L. Reedy, {\\L}. Wyrzykowski, Matthew Penny, M. C. A. Li, M. Dominik, M. Donachie, M. Freeman, M. Friedmann, M. Hundertmark, M. J. Burgdorf, M. K. Szyma\\'nski, M. Nagakane, M. Packard, M. Pawlak, M. Rabus, M. R. Haas, M. Tamura, N. Koshimoto, N. Rattenbury, P. Fouqu\\'e, P. J. Tristram, P. Mr\\'oz, P. Pietrukowicz, P. Tisserand, Rachel A. Street, Rados{\\l}aw Poleski, R. Akeson, R. Figuera Jaimes, R. K. Barry, R. Schmidt, R. W. Pogge, S. B. Howell, S. Calchi Novati, S. Ciceri, S. Kaspi, S. Koz{\\l}owski, S. Mao, S. Rahvar, S. Ross, S. T. Bryson, T. Barclay, T. C. Hinse, T.-O. Husser, To. Saito, T. Sumi, U. G. J{\\o}rgensen, V. Batista, V. Bozza, W. Zhu, Y. Asakura, Y. Hirao, Y. Itow, Y. Matsubara, Y. Muraki, Y. Shvartzvald, Y. Tsapras","submitted_at":"2015-12-30T21:00:01Z","abstract_excerpt":"$K2$'s Campaign 9 ($K2$C9) will conduct a $\\sim$3.7 deg$^{2}$ survey toward the Galactic bulge from 7/April through 1/July of 2016 that will leverage the spatial separation between $K2$ and the Earth to facilitate measurement of the microlens parallax $\\pi_{\\rm E}$ for $\\gtrsim$127 microlensing events. These will include several that are planetary in nature as well as many short-timescale microlensing events, which are potentially indicative of free-floating planets (FFPs). These satellite parallax measurements will in turn allow for the direct measurement of the masses of and distances to the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.09142","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"}