{ "format" : "linked-data-api", "version" : "0.2", "result" : {"_about" : "https://vocabs.ardc.edu.au/repository/api/lda/aas/the-unified-astronomy-thesaurus/4-0-1/resource.text?uri=http://astrothesaurus.org/uat/1025", "definition" : "https://vocabs.ardc.edu.au/repository/api/lda/aas/the-unified-astronomy-thesaurus/4-0-1/resource.text?uri=http://astrothesaurus.org/uat/1025", "extendedMetadataVersion" : "https://vocabs.ardc.edu.au/repository/api/lda/aas/the-unified-astronomy-thesaurus/4-0-1/resource.text?_metadata=all&uri=http://astrothesaurus.org/uat/1025", "primaryTopic" : {"_about" : "http://astrothesaurus.org/uat/1025", "altLabel" : [{"_value" : "Mercury manganese stars", "_lang" : "en"} ], "broader" : [{"_about" : "http://astrothesaurus.org/uat/128", "narrower" : ["http://astrothesaurus.org/uat/1025"]} , {"_about" : "http://astrothesaurus.org/uat/226", "narrower" : ["http://astrothesaurus.org/uat/1025"]} , {"_about" : "http://astrothesaurus.org/uat/995", "narrower" : ["http://astrothesaurus.org/uat/1025"]} ], "contributor" : "http://editor.vocabs.ands.org.au/user/AAS_Frey.Katie", "dctermsModified" : "Tue, 10 Nov 2020 19:23:39 GMT+0000", "definition" : "Chemically peculiar stars of late B-types. The most distinctive features of Mercury-manganese stars are extreme atmospheric overabundance of Hg (up to 5 dex) and of Mn (up to 3 dex). The origin of abundance anomalies observed in late B-type stars with HgMn peculiarity is still poorly understood. More than two thirds of the HgMn stars are known to belong to spectroscopic binaries with a preference of orbital periods ranging from 3 to 20 days.", "prefLabel" : {"_value" : "Mercury-manganese stars", "_lang" : "en"} , "type" : ["http://www.w3.org/2000/01/rdf-schema#Resource", "http://www.w3.org/2004/02/skos/core#Concept"]} , "type" : ["http://purl.org/linked-data/api/vocab#ItemEndpoint", "http://purl.org/linked-data/api/vocab#Page"]} }