{"id":"https://openalex.org/W1963995184","doi":"https://doi.org/10.1086/147961","title":"Three-Color Photometry of YZ BO\u00d6TIS.","display_name":"Three-Color Photometry of YZ BO\u00d6TIS.","publication_year":1964,"publication_date":"1964-08-01","ids":{"openalex":"https://openalex.org/W1963995184","doi":"https://doi.org/10.1086/147961","mag":"1963995184"},"language":"en","primary_location":{"id":"doi:10.1086/147961","doi":"https://doi.org/10.1086/147961","is_oa":false,"landing_page_url":"https://doi.org/10.1086/147961","pdf_url":null,"source":{"id":"https://openalex.org/S1980519","display_name":"The Astrophysical Journal","issn_l":"0004-637X","issn":["0004-637X","1538-4357"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","dongbi-a","jufo-1","ki-jl-1","norway-2","oarl","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Astrophysical Journal","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5067258819","display_name":"Arnold M. Heiser","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"A. M. Heiser","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5013620605","display_name":"Robert H. Hardie","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"R. H. Hardie","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":4499,"currency":"USD","value_usd":4499},"apc_paid":null,"fwci":0.613,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.70374016,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":94},"biblio":{"volume":"140","issue":null,"first_page":"694","last_page":"694"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10039","display_name":"Stellar, planetary, and galactic studies","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10039","display_name":"Stellar, planetary, and galactic studies","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12917","display_name":"Astronomy and Astrophysical Research","score":0.0005000000237487257,"subfield":{"id":"https://openalex.org/subfields/3105","display_name":"Instrumentation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12836","display_name":"History and Developments in Astronomy","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/rr-lyrae-stars","display_name":"RR Lyrae stars","score":0.9879999756813049},{"id":"https://openalex.org/keywords/three-color-photometry","display_name":"three-color photometry","score":0.8220000267028809},{"id":"https://openalex.org/keywords/ubv-photometry","display_name":"UBV photometry","score":0.9150000214576721},{"id":"https://openalex.org/keywords/light-curves","display_name":"light curves","score":0.7020000219345093},{"id":"https://openalex.org/keywords/ephemeris","display_name":"ephemeris","score":0.7630000114440918},{"id":"https://openalex.org/keywords/variable-stars","display_name":"variable stars","score":0.48100000619888306}],"concepts":[{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.9297236204147339},{"id":"https://openalex.org/C68271606","wikidata":"https://www.wikidata.org/wiki/Q625648","display_name":"Photometry (optics)","level":3,"score":0.8975943326950073},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.6056056618690491},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.562509298324585},{"id":"https://openalex.org/C150846664","wikidata":"https://www.wikidata.org/wiki/Q7602306","display_name":"Stars","level":2,"score":0.34152740240097046}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1086/147961","doi":"https://doi.org/10.1086/147961","is_oa":false,"landing_page_url":"https://doi.org/10.1086/147961","pdf_url":null,"source":{"id":"https://openalex.org/S1980519","display_name":"The Astrophysical Journal","issn_l":"0004-637X","issn":["0004-637X","1538-4357"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","dongbi-a","jufo-1","ki-jl-1","norway-2","oarl","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Astrophysical Journal","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2059438093","https://openalex.org/W3024362370","https://openalex.org/W1998843340","https://openalex.org/W2060351307","https://openalex.org/W3216430316","https://openalex.org/W3131625092","https://openalex.org/W3082422702","https://openalex.org/W2061765315","https://openalex.org/W2036385274","https://openalex.org/W2040724223"],"abstract_inverted_index":{"A":[0,75],"total":[1],"of":[2,23,29,54,81],"216":[3],"photoelectric":[4],"observations":[5],"on":[6],"the":[7,30,33,39,55,59,69,79],"UBV":[8],"system":[9],"have":[10],"been":[11,85],"obtained":[12],"for":[13,78],"YZ":[14,56],",":[15],"an":[16],"RR":[17],"Lyrae":[18],"star":[19],"with":[20],"a":[21],"period":[22],"about":[24],"hours.":[25],"The":[26,52],"ascending":[27],"branches":[28],"light-curves":[31],"and":[32],"amplitudes":[34],"are":[35],"relatively":[36],"repetitive,":[37],"but":[38],"descending":[40],"branch":[41],"may":[42],"be":[43],"subject":[44],"to":[45,50],"small":[46],"changes":[47],"from":[48],"cycle":[49],"cycle.":[51],"position":[53],"loop":[57],"in":[58],"U":[60],"-":[61,64],"B,":[62],"B":[63],"V":[65],"diagram":[66],"suggests":[67],"that":[68],"variable":[70],"is":[71],"probably":[72],"not":[73],"reddened.":[74],"revised":[76],"ephemeris":[77],"times":[80],"maximum":[82],"brightness":[83],"has":[84],"obtained:":[86],"Max.":[87],"=":[88],"HJD":[89],"2438206.6961":[90],"+":[91],"0.104091485":[92],"E.":[93]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2018,"cited_by_count":1}],"updated_date":"2026-09-22T06:50:58.402377","created_date":"2016-06-24T00:00:00"}
