{"id":"https://openalex.org/W166404399","doi":null,"title":"BV photometry of beta Lyrae in 1979 and 1981.","display_name":"BV photometry of beta Lyrae in 1979 and 1981.","publication_year":1987,"publication_date":"1987-12-01","ids":{"openalex":"https://openalex.org/W166404399","mag":"166404399"},"language":"en","primary_location":{"id":"mag:166404399","doi":null,"is_oa":false,"landing_page_url":"http://ui.adsabs.harvard.edu/abs/1987A&AS...71..597A/abstract","pdf_url":null,"source":{"id":"https://openalex.org/S98563347","display_name":"Astronomy & Astrophysics Supplement Series","issn_l":"0365-0138","issn":["0365-0138","1286-4846"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":["norway-1"],"host_organization":"https://openalex.org/P4310319748","host_organization_name":"EDP Sciences","host_organization_lineage":["https://openalex.org/P4310319748","https://openalex.org/P4310319982"],"host_organization_lineage_names":["EDP Sciences","Science Press"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Astronomy & Astrophysics Supplement Series","raw_type":null},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"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/A5087750021","display_name":"Z. Aslan","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Z. Aslan","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076115507","display_name":"Ethem Derman","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"E. Derman","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013850520","display_name":"Semanur Engin","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"S. Engin","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5073378265","display_name":"Nihal Y\u0131lmaz","orcid":"https://orcid.org/0000-0002-7308-0510","observed_orcids":["https://orcid.org/0000-0002-7308-0510"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Nihal Y\u0131lmaz","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0000-0002-7308-0510","affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"71","issue":"3","first_page":"597","last_page":"601"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10039","display_name":"Stellar, planetary, and galactic studies","score":0.9976000189781189,"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":0.9976000189781189,"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":0.0010999999940395355,"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/T10744","display_name":"Astrophysical Phenomena and Observations","score":0.0003000000142492354,"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/beta-lyrae","display_name":"Beta Lyrae","score":0.875},{"id":"https://openalex.org/keywords/eclipsing-binaries","display_name":"eclipsing binaries","score":0.7900000214576721},{"id":"https://openalex.org/keywords/light-curves","display_name":"light curves","score":0.6259999871253967},{"id":"https://openalex.org/keywords/photometry","display_name":"photometry","score":0.42800000309944153},{"id":"https://openalex.org/keywords/variable-stars","display_name":"variable stars","score":0.3919999897480011}],"concepts":[{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.8986470103263855},{"id":"https://openalex.org/C68271606","wikidata":"https://www.wikidata.org/wiki/Q625648","display_name":"Photometry (optics)","level":3,"score":0.8766313791275024},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.7690665125846863},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.6368201971054077},{"id":"https://openalex.org/C2776174256","wikidata":"https://www.wikidata.org/wiki/Q830842","display_name":"BETA (programming language)","level":2,"score":0.48917654156684875},{"id":"https://openalex.org/C188984411","wikidata":"https://www.wikidata.org/wiki/Q124313","display_name":"Apparent magnitude","level":3,"score":0.4270949959754944},{"id":"https://openalex.org/C150739758","wikidata":"https://www.wikidata.org/wiki/Q188593","display_name":"Cepheid variable","level":3,"score":0.4162244200706482},{"id":"https://openalex.org/C150846664","wikidata":"https://www.wikidata.org/wiki/Q7602306","display_name":"Stars","level":2,"score":0.059943556785583496},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"mag:166404399","doi":null,"is_oa":false,"landing_page_url":"http://ui.adsabs.harvard.edu/abs/1987A&AS...71..597A/abstract","pdf_url":null,"source":{"id":"https://openalex.org/S98563347","display_name":"Astronomy & Astrophysics Supplement Series","issn_l":"0365-0138","issn":["0365-0138","1286-4846"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":["norway-1"],"host_organization":"https://openalex.org/P4310319748","host_organization_name":"EDP Sciences","host_organization_lineage":["https://openalex.org/P4310319748","https://openalex.org/P4310319982"],"host_organization_lineage_names":["EDP Sciences","Science Press"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Astronomy & Astrophysics Supplement Series","raw_type":null}],"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/W3027692419","https://openalex.org/W3010057008","https://openalex.org/W1649234858","https://openalex.org/W3087725485","https://openalex.org/W3012229145","https://openalex.org/W2994008571","https://openalex.org/W3011167831","https://openalex.org/W4246638174","https://openalex.org/W2990592693","https://openalex.org/W2049798449"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-10-01T08:54:57.152042","created_date":"2016-06-24T00:00:00"}