<> <http://www.w3.org/2000/01/rdf-schema#comment> "The repository administrator has not yet configured an RDF license."^^<http://www.w3.org/2001/XMLSchema#string> . <> <http://xmlns.com/foaf/0.1/primaryTopic> <https://discovery.ucl.ac.uk/id/eprint/1477405> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/ontology/bibo/AcademicArticle> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/ontology/bibo/Article> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://purl.org/dc/terms/title> "Externally polluted white dwarfs with dust disks"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://purl.org/ontology/bibo/abstract> "We report Spitzer Space Telescope photometry of 11 externally polluted white dwarfs. Of the nine stars for which we have IRAC photometry, we find that GD 40, GD 133, and PG 1015+161 each has an infrared excess that can be understood as arising from a flat, opaque, dusty disk. GD 56 also has an infrared excess characteristic of circumstellar dust, but a flat-disk model cannot reproduce the data unless there are grains as warm as 1700 K and perhaps not even then. Our data support the previous suggestion that the metals in the atmosphere of GD 40 are the result of accretion of a tidally disrupted asteroid with a chondritic composition."^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://purl.org/dc/terms/date> "2007-07-10" . <https://discovery.ucl.ac.uk/id/document/237065> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/ontology/bibo/Document> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://purl.org/ontology/bibo/volume> "663" . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://purl.org/ontology/bibo/issue> "2" . <https://discovery.ucl.ac.uk/id/publication/ext-15384357> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/ontology/bibo/Collection> . <https://discovery.ucl.ac.uk/id/publication/ext-15384357> <http://xmlns.com/foaf/0.1/name> "Astrophysical Journal"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://purl.org/dc/terms/isPartOf> <https://discovery.ucl.ac.uk/id/publication/ext-15384357> . <https://discovery.ucl.ac.uk/id/publication/ext-15384357> <http://www.w3.org/2002/07/owl#sameAs> <urn:issn:15384357> . <https://discovery.ucl.ac.uk/id/publication/ext-15384357> <http://purl.org/ontology/bibo/issn> "15384357" . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://purl.org/ontology/bibo/status> <http://purl.org/ontology/bibo/status/published> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://purl.org/dc/terms/creator> <https://discovery.ucl.ac.uk/id/person/ext-f2d6b4f0d375c1a9e2b0ebb2139c0a5d> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://purl.org/ontology/bibo/authorList> <https://discovery.ucl.ac.uk/id/eprint/1477405#authors> . <https://discovery.ucl.ac.uk/id/eprint/1477405#authors> <http://www.w3.org/1999/02/22-rdf-syntax-ns#_1> <https://discovery.ucl.ac.uk/id/person/ext-f2d6b4f0d375c1a9e2b0ebb2139c0a5d> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://purl.org/dc/terms/creator> <https://discovery.ucl.ac.uk/id/person/ext-929c65629d9969bd641ff83de5d796f9> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://purl.org/ontology/bibo/authorList> <https://discovery.ucl.ac.uk/id/eprint/1477405#authors> . <https://discovery.ucl.ac.uk/id/eprint/1477405#authors> <http://www.w3.org/1999/02/22-rdf-syntax-ns#_2> <https://discovery.ucl.ac.uk/id/person/ext-929c65629d9969bd641ff83de5d796f9> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://purl.org/dc/terms/creator> <https://discovery.ucl.ac.uk/id/person/ext-f17b60d7ebc0293356715d2fcbef9ef9> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://purl.org/ontology/bibo/authorList> <https://discovery.ucl.ac.uk/id/eprint/1477405#authors> . <https://discovery.ucl.ac.uk/id/eprint/1477405#authors> <http://www.w3.org/1999/02/22-rdf-syntax-ns#_3> <https://discovery.ucl.ac.uk/id/person/ext-f17b60d7ebc0293356715d2fcbef9ef9> . <https://discovery.ucl.ac.uk/id/person/ext-929c65629d9969bd641ff83de5d796f9> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Person> . <https://discovery.ucl.ac.uk/id/person/ext-929c65629d9969bd641ff83de5d796f9> <http://xmlns.com/foaf/0.1/givenName> "J"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-929c65629d9969bd641ff83de5d796f9> <http://xmlns.com/foaf/0.1/familyName> "Farihi"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-929c65629d9969bd641ff83de5d796f9> <http://xmlns.com/foaf/0.1/name> "J Farihi"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-f17b60d7ebc0293356715d2fcbef9ef9> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Person> . <https://discovery.ucl.ac.uk/id/person/ext-f17b60d7ebc0293356715d2fcbef9ef9> <http://xmlns.com/foaf/0.1/givenName> "B"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-f17b60d7ebc0293356715d2fcbef9ef9> <http://xmlns.com/foaf/0.1/familyName> "Zuckerman"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-f17b60d7ebc0293356715d2fcbef9ef9> <http://xmlns.com/foaf/0.1/name> "B Zuckerman"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-f2d6b4f0d375c1a9e2b0ebb2139c0a5d> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Person> . <https://discovery.ucl.ac.uk/id/person/ext-f2d6b4f0d375c1a9e2b0ebb2139c0a5d> <http://xmlns.com/foaf/0.1/givenName> "M"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-f2d6b4f0d375c1a9e2b0ebb2139c0a5d> <http://xmlns.com/foaf/0.1/familyName> "Jura"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-f2d6b4f0d375c1a9e2b0ebb2139c0a5d> <http://xmlns.com/foaf/0.1/name> "M Jura"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://eprints.org/ontology/EPrint> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://eprints.org/ontology/ArticleEPrint> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://purl.org/dc/terms/isPartOf> <https://discovery.ucl.ac.uk/id/repository> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://eprints.org/ontology/hasDocument> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237065> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://eprints.org/ontology/Document> . <https://discovery.ucl.ac.uk/id/document/237065> <http://www.w3.org/2000/01/rdf-schema#label> "Externally polluted white dwarfs with dust disks (Text)"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/document/237065> <http://eprints.org/ontology/hasFile> <https://discovery.ucl.ac.uk/id/eprint/1477405/1/Farihi_71419.web.pdf> . <https://discovery.ucl.ac.uk/id/document/237065> <http://purl.org/dc/terms/hasPart> <https://discovery.ucl.ac.uk/id/eprint/1477405/1/Farihi_71419.web.pdf> . <https://discovery.ucl.ac.uk/id/eprint/1477405/1/Farihi_71419.web.pdf> <http://www.w3.org/2000/01/rdf-schema#label> "Farihi_71419.web.pdf"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://eprints.org/ontology/hasDocument> <https://discovery.ucl.ac.uk/id/document/237084> . <https://discovery.ucl.ac.uk/id/document/237084> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://eprints.org/ontology/Document> . <https://discovery.ucl.ac.uk/id/document/237084> <http://www.w3.org/2000/01/rdf-schema#label> "Externally polluted white dwarfs with dust disks (Other)"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/document/237084> <http://eprints.org/relation/isVersionOf> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237084> <http://eprints.org/relation/isVolatileVersionOf> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237084> <http://eprints.org/relation/islightboxThumbnailVersionOf> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237084> <http://eprints.org/ontology/hasFile> <https://discovery.ucl.ac.uk/id/eprint/1477405/2/lightbox.jpg> . <https://discovery.ucl.ac.uk/id/document/237084> <http://purl.org/dc/terms/hasPart> <https://discovery.ucl.ac.uk/id/eprint/1477405/2/lightbox.jpg> . <https://discovery.ucl.ac.uk/id/eprint/1477405/2/lightbox.jpg> <http://www.w3.org/2000/01/rdf-schema#label> "lightbox.jpg"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://eprints.org/ontology/hasDocument> <https://discovery.ucl.ac.uk/id/document/237085> . <https://discovery.ucl.ac.uk/id/document/237085> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://eprints.org/ontology/Document> . <https://discovery.ucl.ac.uk/id/document/237085> <http://www.w3.org/2000/01/rdf-schema#label> "Externally polluted white dwarfs with dust disks (Other)"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/document/237085> <http://eprints.org/relation/isVersionOf> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237085> <http://eprints.org/relation/isVolatileVersionOf> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237085> <http://eprints.org/relation/ispreviewThumbnailVersionOf> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237085> <http://eprints.org/ontology/hasFile> <https://discovery.ucl.ac.uk/id/eprint/1477405/3/preview.jpg> . <https://discovery.ucl.ac.uk/id/document/237085> <http://purl.org/dc/terms/hasPart> <https://discovery.ucl.ac.uk/id/eprint/1477405/3/preview.jpg> . <https://discovery.ucl.ac.uk/id/eprint/1477405/3/preview.jpg> <http://www.w3.org/2000/01/rdf-schema#label> "preview.jpg"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://eprints.org/ontology/hasDocument> <https://discovery.ucl.ac.uk/id/document/237086> . <https://discovery.ucl.ac.uk/id/document/237086> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://eprints.org/ontology/Document> . <https://discovery.ucl.ac.uk/id/document/237086> <http://www.w3.org/2000/01/rdf-schema#label> "Externally polluted white dwarfs with dust disks (Other)"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/document/237086> <http://eprints.org/relation/isVersionOf> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237086> <http://eprints.org/relation/isVolatileVersionOf> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237086> <http://eprints.org/relation/ismediumThumbnailVersionOf> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237086> <http://eprints.org/ontology/hasFile> <https://discovery.ucl.ac.uk/id/eprint/1477405/4/medium.jpg> . <https://discovery.ucl.ac.uk/id/document/237086> <http://purl.org/dc/terms/hasPart> <https://discovery.ucl.ac.uk/id/eprint/1477405/4/medium.jpg> . <https://discovery.ucl.ac.uk/id/eprint/1477405/4/medium.jpg> <http://www.w3.org/2000/01/rdf-schema#label> "medium.jpg"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://eprints.org/ontology/hasDocument> <https://discovery.ucl.ac.uk/id/document/237087> . <https://discovery.ucl.ac.uk/id/document/237087> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://eprints.org/ontology/Document> . <https://discovery.ucl.ac.uk/id/document/237087> <http://www.w3.org/2000/01/rdf-schema#label> "Externally polluted white dwarfs with dust disks (Other)"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/document/237087> <http://eprints.org/relation/isVersionOf> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237087> <http://eprints.org/relation/isVolatileVersionOf> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237087> <http://eprints.org/relation/issmallThumbnailVersionOf> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237087> <http://eprints.org/ontology/hasFile> <https://discovery.ucl.ac.uk/id/eprint/1477405/5/small.jpg> . <https://discovery.ucl.ac.uk/id/document/237087> <http://purl.org/dc/terms/hasPart> <https://discovery.ucl.ac.uk/id/eprint/1477405/5/small.jpg> . <https://discovery.ucl.ac.uk/id/eprint/1477405/5/small.jpg> <http://www.w3.org/2000/01/rdf-schema#label> "small.jpg"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://eprints.org/ontology/hasDocument> <https://discovery.ucl.ac.uk/id/document/237088> . <https://discovery.ucl.ac.uk/id/document/237088> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://eprints.org/ontology/Document> . <https://discovery.ucl.ac.uk/id/document/237088> <http://www.w3.org/2000/01/rdf-schema#label> "Externally polluted white dwarfs with dust disks (Other)"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/document/237088> <http://eprints.org/relation/isVersionOf> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237088> <http://eprints.org/relation/isVolatileVersionOf> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237088> <http://eprints.org/relation/isIndexCodesVersionOf> <https://discovery.ucl.ac.uk/id/document/237065> . <https://discovery.ucl.ac.uk/id/document/237088> <http://eprints.org/ontology/hasFile> <https://discovery.ucl.ac.uk/id/eprint/1477405/6/indexcodes.txt> . <https://discovery.ucl.ac.uk/id/document/237088> <http://purl.org/dc/terms/hasPart> <https://discovery.ucl.ac.uk/id/eprint/1477405/6/indexcodes.txt> . <https://discovery.ucl.ac.uk/id/eprint/1477405/6/indexcodes.txt> <http://www.w3.org/2000/01/rdf-schema#label> "indexcodes.txt"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/eprint/1477405> <http://www.w3.org/2000/01/rdf-schema#seeAlso> <https://discovery.ucl.ac.uk/id/eprint/1477405/> . <https://discovery.ucl.ac.uk/id/eprint/1477405/> <http://purl.org/dc/elements/1.1/title> "HTML Summary of #1477405 \n\nExternally polluted white dwarfs with dust disks\n\n" . <https://discovery.ucl.ac.uk/id/eprint/1477405/> <http://purl.org/dc/elements/1.1/format> "text/html" . <https://discovery.ucl.ac.uk/id/eprint/1477405/> <http://xmlns.com/foaf/0.1/primaryTopic> <https://discovery.ucl.ac.uk/id/eprint/1477405> .