{"@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/1363670320958728704.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.3847/2041-8205/821/2/l22"}},{"identifier":{"@type":"URI","@value":"https://iopscience.iop.org/article/10.3847/2041-8205/821/2/L22/pdf"}},{"identifier":{"@type":"URI","@value":"https://iopscience.iop.org/article/10.3847/2041-8205/821/2/L22"}}],"dc:title":[{"@value":"NO PRECISE LOCALIZATION FOR FRB 150418: CLAIMED RADIO TRANSIENT IS AGN VARIABILITY"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>ABSTRACT</jats:title>\n               <jats:p>Keane et al. have recently claimed to have obtained the first precise localization for a fast radio burst (FRB) thanks to the identification of a contemporaneous fading slow (∼week-timescale) radio transient. They use this localization to pinpoint the FRB to a galaxy at <jats:inline-formula>\n                     <jats:tex-math>\n\n</jats:tex-math>\n                     <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" overflow=\"scroll\">\n                        <mml:mi>z</mml:mi>\n                        <mml:mo>≈</mml:mo>\n                        <mml:mn>0.49</mml:mn>\n                     </mml:math>\n                     <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"apjl523433ieqn1.gif\" xlink:type=\"simple\"/>\n                  </jats:inline-formula> that exhibits no discernible star formation activity. We argue that the transient is not genuine and that the host candidate, WISE J071634.59−190039.2, is instead a radio variable: the available data did not exclude this possibility; a random radio variable consistent with the observations is not unlikely to have a redshift compatible with the FRB dispersion measure; and the proposed transient light curve is better explained as a scintillating steady source, perhaps also showing an active galactic nucleus (AGN) flare, than a synchrotron-emitting blastwave. The radio luminosity of the host candidate implies that it is an AGN and we present new late-time Very Large Array observations showing that the galaxy is indeed variable at a level consistent with the claimed transient. Therefore the claimed precise localization and redshift determination for FRB 150418 cannot be justified.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1383670320958728833","@type":"Researcher","foaf:name":[{"@value":"P. K. G. Williams"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320958728832","@type":"Researcher","foaf:name":[{"@value":"E. Berger"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"20418205"},{"@type":"EISSN","@value":"20418213"}],"prism:publicationName":[{"@value":"The Astrophysical Journal Letters"}],"dc:publisher":[{"@value":"American Astronomical Society"}],"prism:publicationDate":"2016-04-15","prism:volume":"821","prism:number":"2","prism:startingPage":"L22"},"reviewed":"false","dc:rights":["https://iopscience.iop.org/page/copyright","https://iopscience.iop.org/info/page/text-and-data-mining"],"url":[{"@id":"https://iopscience.iop.org/article/10.3847/2041-8205/821/2/L22/pdf"},{"@id":"https://iopscience.iop.org/article/10.3847/2041-8205/821/2/L22"}],"createdAt":"2016-04-14","modifiedAt":"2024-01-08","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360004234736425600","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Optical follow-up observation of Fast Radio Burst 151230"}]},{"@id":"https://cir.nii.ac.jp/crid/1360283692578185216","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Optical and radio astrometry of the galaxy associated with FRB 150418"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285709713138560","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"A search for optical transients associated with fast radio burst 150418"}]},{"@id":"https://cir.nii.ac.jp/crid/1360565166913930752","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"FRB 150418: clues to its nature from European VLBI Network and e-MERLIN observations"}]},{"@id":"https://cir.nii.ac.jp/crid/1360565167604469632","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Repeating and non-repeating fast radio bursts from binary neutron star mergers"}]},{"@id":"https://cir.nii.ac.jp/crid/1360572092563305728","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"The FRB 121102 Host Is Atypical among Nearby Fast Radio Bursts"}]},{"@id":"https://cir.nii.ac.jp/crid/1360846641890634752","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"First limits on the very-high energy gamma-ray afterglow emission of a fast radio burst"}]},{"@id":"https://cir.nii.ac.jp/crid/1360846645713985536","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"FAST RADIO BURSTS AS PROBES OF MAGNETIC FIELDS IN THE INTERGALACTIC MEDIUM"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848664608391168","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"RADIO TRANSIENTS FROM ACCRETION-INDUCED COLLAPSE OF WHITE DWARFS"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.3847/2041-8205/821/2/l22"},{"@type":"CROSSREF","@value":"10.1093/pasj/psy101_references_DOI_WyCIx1ZXrq9XqsE2FFovZtILyHC"},{"@type":"CROSSREF","@value":"10.1093/mnrasl/slw151_references_DOI_WyCIx1ZXrq9XqsE2FFovZtILyHC"},{"@type":"CROSSREF","@value":"10.1093/pasj/psy102_references_DOI_WyCIx1ZXrq9XqsE2FFovZtILyHC"},{"@type":"CROSSREF","@value":"10.1051/0004-6361/201629172_references_DOI_WyCIx1ZXrq9XqsE2FFovZtILyHC"},{"@type":"CROSSREF","@value":"10.1093/pasj/psy029_references_DOI_WyCIx1ZXrq9XqsE2FFovZtILyHC"},{"@type":"CROSSREF","@value":"10.3847/2041-8213/ab3e41_references_DOI_WyCIx1ZXrq9XqsE2FFovZtILyHC"},{"@type":"CROSSREF","@value":"10.1051/0004-6361/201629117_references_DOI_WyCIx1ZXrq9XqsE2FFovZtILyHC"},{"@type":"CROSSREF","@value":"10.3847/0004-637x/824/2/105_references_DOI_WyCIx1ZXrq9XqsE2FFovZtILyHC"},{"@type":"CROSSREF","@value":"10.3847/2041-8205/830/2/l38_references_DOI_WyCIx1ZXrq9XqsE2FFovZtILyHC"}]}