{"paper":{"title":"Kojima-1Lb Is a Mildly Cold Neptune around the Brightest Microlensing Host Star","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. Fukui, A. Hernandez, A. Nishide, A. Oksanen, A. Shionoya, A. Yonehara, C. Beichman, C. Otsuki, D. E. Reichart N. Kawai, D. Hidalgo, D. Mawet, D. P. Bennett, D. Storey, D. Suzuki, E. Bachelet, E. Palle, F. Murgas, G. Chen, H. Maehara, H. Parviainen, J.-P. Beaulieu, J. P. de Leon, J. Prieto-Arranz, K. L. Murata, K. Onodera, K. Yanagisawa, M. Fujita, M. Fukagawa, M. Hundertmark, M. Kuzuhara, M. Monelli, M. Mori, M. Tamura, M. T. Penny, N. Casasayas-Barris, N. Crouzet, N. Koshimoto, N. Kusakabe, N. Narita, N. Watanabe, P. Klagyivik, P. Montanes-Rodriguez, R. Alonso, R. A. Street, R. Luque, S. Awiphan, S. Shugarov, S. Villanueva Jr., T. E. Oberst, T. Hirano, T. M. Heintz, T. Nishiumi, T. Vanmunster, T. Yamada, V. Bozza, V. J. S. Bejar, Y. Kubota, Y. Terada, Y. Tsapras","submitted_at":"2019-09-25T22:37:15Z","abstract_excerpt":"We report the analysis of additional multiband photometry and spectroscopy and new adaptive optics (AO) imaging of the nearby planetary microlensing event TCP J05074264+2447555 (Kojima-1), which was discovered toward the Galactic anticenter in 2017 (Nucita et al.). We confirm the planetary nature of the light-curve anomaly around the peak while finding no additional planetary feature in this event. We also confirm the presence of apparent blending flux and the absence of significant parallax signal reported in the literature. The AO image reveals no contaminating sources, making it most likely"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.11802","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1909.11802/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"}