{"id":"https://openalex.org/W4232370599","doi":"https://doi.org/10.1146/annurev.aa.06.090168.001541","title":"Radio Spectra","display_name":"Radio Spectra","publication_year":1968,"publication_date":"1968-09-01","ids":{"openalex":"https://openalex.org/W4232370599","doi":"https://doi.org/10.1146/annurev.aa.06.090168.001541"},"language":"en","primary_location":{"id":"doi:10.1146/annurev.aa.06.090168.001541","doi":"https://doi.org/10.1146/annurev.aa.06.090168.001541","is_oa":false,"landing_page_url":"https://doi.org/10.1146/annurev.aa.06.090168.001541","pdf_url":null,"source":{"id":"https://openalex.org/S29882555","display_name":"Annual Review of Astronomy and Astrophysics","issn_l":"0066-4146","issn":["0066-4146","1545-4282"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-a","jufo-3","norway-2","poland-200","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320373","host_organization_name":"Annual Reviews","host_organization_lineage":["https://openalex.org/P4310320373"],"host_organization_lineage_names":["Annual Reviews"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Annual Review of Astronomy and Astrophysics","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"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/A5108605933","display_name":"P. A. G. Scheuer","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"P. A. C. Scheuer","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5110125041","display_name":"P. J. S. Williams","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"P. J. S. Williams","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":9.5302,"has_fulltext":false,"cited_by_count":90,"citation_normalized_percentile":{"value":0.97718447,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":98},"biblio":{"volume":"6","issue":"1","first_page":"321","last_page":"350"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12836","display_name":"History and Developments in Astronomy","score":0.3337000012397766,"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/T12836","display_name":"History and Developments in Astronomy","score":0.3337000012397766,"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/T12450","display_name":"Radio Astronomy Observations and Technology","score":0.1695999950170517,"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/T10818","display_name":"Astrophysics and Cosmic Phenomena","score":0.1500999927520752,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"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/radio-spectra","display_name":"radio spectra","score":0.9509999752044678},{"id":"https://openalex.org/keywords/radio-continuum-emission","display_name":"radio continuum emission","score":0.7210000157356262},{"id":"https://openalex.org/keywords/high-energy-astrophysics","display_name":"high-energy astrophysics","score":0.8270000219345093},{"id":"https://openalex.org/keywords/cosmic-microwave-background","display_name":"cosmic microwave background","score":0.5120000243186951},{"id":"https://openalex.org/keywords/general-relativity","display_name":"general relativity","score":0.7350000143051147}],"concepts":[{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.8830907344818115},{"id":"https://openalex.org/C26405456","wikidata":"https://www.wikidata.org/wiki/Q338","display_name":"Cosmology","level":2,"score":0.6846778392791748},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.6211969256401062},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.5984877347946167},{"id":"https://openalex.org/C56764","wikidata":"https://www.wikidata.org/wiki/Q2998314","display_name":"Observational cosmology","level":4,"score":0.4349602460861206},{"id":"https://openalex.org/C33332235","wikidata":"https://www.wikidata.org/wiki/Q18362","display_name":"Theoretical physics","level":1,"score":0.3806885778903961},{"id":"https://openalex.org/C172790937","wikidata":"https://www.wikidata.org/wiki/Q18343","display_name":"Dark energy","level":3,"score":0.17060688138008118}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1146/annurev.aa.06.090168.001541","doi":"https://doi.org/10.1146/annurev.aa.06.090168.001541","is_oa":false,"landing_page_url":"https://doi.org/10.1146/annurev.aa.06.090168.001541","pdf_url":null,"source":{"id":"https://openalex.org/S29882555","display_name":"Annual Review of Astronomy and Astrophysics","issn_l":"0066-4146","issn":["0066-4146","1545-4282"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-a","jufo-3","norway-2","poland-200","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320373","host_organization_name":"Annual Reviews","host_organization_lineage":["https://openalex.org/P4310320373"],"host_organization_lineage_names":["Annual Reviews"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Annual Review of Astronomy and Astrophysics","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/W4242580483","https://openalex.org/W2022605750","https://openalex.org/W4249565579","https://openalex.org/W2070040198","https://openalex.org/W4249882465","https://openalex.org/W2110036265","https://openalex.org/W4250060330","https://openalex.org/W2142929193","https://openalex.org/W2148455683","https://openalex.org/W2179760443"],"abstract_inverted_index":{"In":[0],"the":[1,11,29],"1960s,":[2],"novel":[3],"and":[4,23],"increasingly":[5],"powerful":[6],"observational":[7],"techniques":[8],"opened":[9],"up":[10],"field":[12],"of":[13,31],"high-energy":[14],"astrophysics.":[15],"Cosmology":[16],"started":[17],"to":[18],"become":[19],"an":[20],"empirical":[21],"science,":[22],"there":[24],"was":[25],"a":[26,37],"resurgence":[27],"in":[28],"study":[30],"general":[32],"relativity.":[33],"Martin":[34],"Rees":[35],"became":[36],"...Read":[38],"More":[39]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":7},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":5},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":6},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":6}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2022-05-12T00:00:00"}