{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360021389802881152.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1051/0004-6361/202346166"}},{"identifier":{"@type":"URI","@value":"https://www.aanda.org/10.1051/0004-6361/202346166/pdf"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"MOA-2022-BLG-249Lb: Nearby microlensing super-Earth planet detected from high-cadence surveys"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p><jats:italic>Aims.</jats:italic> We investigate the data collected by the high-cadence microlensing surveys during the 2022 season in search of planetary signals appearing in the light curves of microlensing events. From this search, we find that the lensing event MOA-2022-BLG-249 exhibits a brief positive anomaly that lasted for about one day, with a maximum deviation of ~0.2 mag from a single-source, single-lens model.</jats:p>\n<jats:p><jats:italic>Methods.</jats:italic> We analyzed the light curve under the two interpretations of the anomaly: one originated by a low-mass companion to the lens (planetary model) and the other originated by a faint companion to the source (binary-source model).</jats:p>\n<jats:p><jats:italic>Results.</jats:italic> We find that the anomaly is better explained by the planetary model than the binary-source model. We identified two solutions rooted in the inner-outer degeneracy and for both of them, the estimated planet-to-host mass ratio, <jats:italic>q ~</jats:italic> 8 × 10<jats:sup>−5</jats:sup>, is very small. With the constraints provided by the microlens parallax and the lower limit on the Einstein radius, as well as the blend-flux constraint, we find that the lens is a planetary system, in which a super-Earth planet, with a mass of (4.83 ± 1.44) <jats:italic>Μ</jats:italic><jats:sub>⊕</jats:sub>, orbits a low-mass host star, with a mass of (0.18 ± 0.05) <jats:italic>M</jats:italic><jats:sub>⊙</jats:sub>, lying in the Galactic disk at a distance of (2.00 ± 0.42) kpc. The planet detection demonstrates the elevated microlensing sensitivity of the current high-cadence lensing surveys to low-mass planets.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380021389802881186","@type":"Researcher","foaf:name":[{"@value":"Cheongho Han"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881292","@type":"Researcher","foaf:name":[{"@value":"Andrew Gould"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881283","@type":"Researcher","foaf:name":[{"@value":"Youn Kil Jung"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881171","@type":"Researcher","foaf:name":[{"@value":"Ian A. Bond"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881160","@type":"Researcher","foaf:name":[{"@value":"Weicheng Zang"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881204","@type":"Researcher","foaf:name":[{"@value":"Sun-Ju Chung"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881181","@type":"Researcher","foaf:name":[{"@value":"Michael D. Albrow"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881031","@type":"Researcher","foaf:name":[{"@value":"Kyu-Ha Hwang"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881194","@type":"Researcher","foaf:name":[{"@value":"Yoon-Hyun Ryu"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881030","@type":"Researcher","foaf:name":[{"@value":"In-Gu Shin"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881196","@type":"Researcher","foaf:name":[{"@value":"Yossi Shvartzvald"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881290","@type":"Researcher","foaf:name":[{"@value":"Hongjing Yang"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881153","@type":"Researcher","foaf:name":[{"@value":"Jennifer C. Yee"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881297","@type":"Researcher","foaf:name":[{"@value":"Sang-Mok Cha"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881187","@type":"Researcher","foaf:name":[{"@value":"Doeon Kim"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881202","@type":"Researcher","foaf:name":[{"@value":"Dong-Jin Kim"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881207","@type":"Researcher","foaf:name":[{"@value":"Seung-Lee Kim"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881028","@type":"Researcher","foaf:name":[{"@value":"Chung-Uk Lee"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881182","@type":"Researcher","foaf:name":[{"@value":"Dong-Joo Lee"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881300","@type":"Researcher","foaf:name":[{"@value":"Yongseok Lee"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881170","@type":"Researcher","foaf:name":[{"@value":"Byeong-Gon Park"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881155","@type":"Researcher","foaf:name":[{"@value":"Richard W. Pogge"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881209","@type":"Researcher","foaf:name":[{"@value":"Shude Mao"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881162","@type":"Researcher","foaf:name":[{"@value":"Wei Zhu"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881205","@type":"Researcher","foaf:name":[{"@value":"Fumio Abe"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881156","@type":"Researcher","foaf:name":[{"@value":"Richard Barry"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881172","@type":"Researcher","foaf:name":[{"@value":"David P. Bennett"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881206","@type":"Researcher","foaf:name":[{"@value":"Aparna Bhattacharya"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881183","@type":"Researcher","foaf:name":[{"@value":"Hirosame Fujii"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881174","@type":"Researcher","foaf:name":[{"@value":"Akihiko Fukui"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881033","@type":"Researcher","foaf:name":[{"@value":"Ryusei Hamada"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881177","@type":"Researcher","foaf:name":[{"@value":"Yuki Hirao"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881282","@type":"Researcher","foaf:name":[{"@value":"Stela Ishitani Silva"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881195","@type":"Researcher","foaf:name":[{"@value":"Yoshitaka Itow"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881310","@type":"Researcher","foaf:name":[{"@value":"Rintaro Kirikawa"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881154","@type":"Researcher","foaf:name":[{"@value":"Iona Kondo"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881025","@type":"Researcher","foaf:name":[{"@value":"Naoki Koshimoto"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881303","@type":"Researcher","foaf:name":[{"@value":"Yutaka Matsubara"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881302","@type":"Researcher","foaf:name":[{"@value":"Sho Matsumoto"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881306","@type":"Researcher","foaf:name":[{"@value":"Shota Miyazaki"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881184","@type":"Researcher","foaf:name":[{"@value":"Yasushi Muraki"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881309","@type":"Researcher","foaf:name":[{"@value":"Arisa Okamura"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881192","@type":"Researcher","foaf:name":[{"@value":"Greg Olmschenk"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881287","@type":"Researcher","foaf:name":[{"@value":"Clément Ranc"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881175","@type":"Researcher","foaf:name":[{"@value":"Nicholas J. Rattenbury"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881035","@type":"Researcher","foaf:name":[{"@value":"Yuki Satoh"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881301","@type":"Researcher","foaf:name":[{"@value":"Takahiro Sumi"}]},{"@id":"https://cir.nii.ac.jp/crid/1420001326212189824","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"60807717"},{"@type":"NRID","@value":"1000060807717"},{"@type":"NRID","@value":"9000019088769"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/dsuzuki0214"}],"foaf:name":[{"@value":"Daisuke Suzuki"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881298","@type":"Researcher","foaf:name":[{"@value":"Taiga Toda"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881281","@type":"Researcher","foaf:name":[{"@value":"Mio Tomoyoshi"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021389802881029","@type":"Researcher","foaf:name":[{"@value":"Paul J. 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