{"id":"https://openalex.org/W2010754694","doi":"https://doi.org/10.1086/154947","title":"Infrared observations of compact H II regions in the spectral range 3.4-33 micrometers","display_name":"Infrared observations of compact H II regions in the spectral range 3.4-33 micrometers","publication_year":1977,"publication_date":"1977-01-01","ids":{"openalex":"https://openalex.org/W2010754694","doi":"https://doi.org/10.1086/154947","mag":"2010754694"},"language":"en","primary_location":{"id":"doi:10.1086/154947","doi":"https://doi.org/10.1086/154947","is_oa":false,"landing_page_url":"https://doi.org/10.1086/154947","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","is_traditional":true,"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/A5030030049","display_name":"H. Melvin Dyck","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"H. M. Dyck","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5026190437","display_name":"T. Simon","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"T. Simon","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":5.0183,"has_fulltext":false,"cited_by_count":22,"citation_normalized_percentile":{"value":0.94056748,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":87,"max":95},"biblio":{"volume":"211","issue":null,"first_page":"421","last_page":"421"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10477","display_name":"Astrophysics and Star Formation Studies","score":0.9980000257492065,"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/T10477","display_name":"Astrophysics and Star Formation Studies","score":0.9980000257492065,"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/T10039","display_name":"Stellar, planetary, and galactic studies","score":0.0008999999845400453,"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/T10026","display_name":"Galaxies: Formation, Evolution, Phenomena","score":0.00019999999494757503,"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/compact-h-ii-regions","display_name":"compact H II regions","score":0.9890000224113464},{"id":"https://openalex.org/keywords/infrared-photometry","display_name":"infrared photometry","score":0.6840000152587891},{"id":"https://openalex.org/keywords/infrared-spectra","display_name":"infrared spectra","score":0.4020000100135803},{"id":"https://openalex.org/keywords/silicate-absorption","display_name":"silicate absorption","score":0.8220000267028809},{"id":"https://openalex.org/keywords/luminosity","display_name":"luminosity","score":0.4020000100135803},{"id":"https://openalex.org/keywords/compact-radio-sources","display_name":"compact radio sources","score":0.7409999966621399},{"id":"https://openalex.org/keywords/maser-sources","display_name":"maser sources","score":0.7860000133514404}],"concepts":[{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.9024019241333008},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.7386519908905029},{"id":"https://openalex.org/C158355884","wikidata":"https://www.wikidata.org/wiki/Q11388","display_name":"Infrared","level":2,"score":0.64497971534729},{"id":"https://openalex.org/C150846664","wikidata":"https://www.wikidata.org/wiki/Q7602306","display_name":"Stars","level":2,"score":0.6304864883422852},{"id":"https://openalex.org/C68271606","wikidata":"https://www.wikidata.org/wiki/Q625648","display_name":"Photometry (optics)","level":3,"score":0.6071043610572815},{"id":"https://openalex.org/C46061668","wikidata":"https://www.wikidata.org/wiki/Q487875","display_name":"Maser","level":2,"score":0.5560848712921143},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.5485202074050903},{"id":"https://openalex.org/C2776026020","wikidata":"https://www.wikidata.org/wiki/Q13903","display_name":"Orion Nebula","level":3,"score":0.5331093072891235},{"id":"https://openalex.org/C4839761","wikidata":"https://www.wikidata.org/wiki/Q212111","display_name":"Spectral line","level":2,"score":0.5079219937324524},{"id":"https://openalex.org/C23254167","wikidata":"https://www.wikidata.org/wiki/Q497654","display_name":"Young stellar object","level":4,"score":0.4903709888458252},{"id":"https://openalex.org/C2778042268","wikidata":"https://www.wikidata.org/wiki/Q11282","display_name":"H II region","level":4,"score":0.43330809473991394},{"id":"https://openalex.org/C180690934","wikidata":"https://www.wikidata.org/wiki/Q25377588","display_name":"Stellar classification","level":3,"score":0.4214053153991699},{"id":"https://openalex.org/C125857072","wikidata":"https://www.wikidata.org/wiki/Q16744","display_name":"Star formation","level":3,"score":0.24974074959754944}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1086/154947","doi":"https://doi.org/10.1086/154947","is_oa":false,"landing_page_url":"https://doi.org/10.1086/154947","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/W4232713734","https://openalex.org/W4964744","https://openalex.org/W4253208104","https://openalex.org/W3135294218","https://openalex.org/W2066130569","https://openalex.org/W2057779368","https://openalex.org/W2015755854","https://openalex.org/W3123418199","https://openalex.org/W2087738851","https://openalex.org/W3133959000"],"abstract_inverted_index":{"We":[0,30],"have":[1],"obtained":[2],"photometry":[3],"of":[4,82,90],"17":[5],"compact":[6,101],"infrared":[7,93],"sources":[8,94,125],"in":[9,21,66,104],"five":[10],"galactic":[11],"H":[12],"ii":[13],"regions":[14],"(W3,":[15],"W33,":[16],"W48,":[17],"WSl,":[18],"and":[19,62,71,119],"W7S)":[20],"the":[22,67,80,83,100,114],"spectral":[23],"range":[24],"from":[25],"3.4":[26],"to":[27,37,59,79],"33":[28,72],"m.":[29],"find:":[31],"(1)":[32],"flux":[33],"spectra":[34,68],"that":[35,49,74],"continue":[36],"rise":[38],"at":[39],"wavelengths":[40],"beyond":[41],"20":[42,60,70],"m":[43,73,85],"for":[44],"many":[45],"objects;":[46],"(2)":[47],"luminosities":[48],"are":[50],"considerably":[51],"higher":[52],"than":[53],"estimates":[54],"based":[55],"on":[56],"data":[57],"extending":[58],"m;":[61],"(3)":[63],"complex":[64],"behavior":[65],"between":[69],"is":[75],"not":[76],"simply":[77],"related":[78],"depth":[81],"10":[84],"silicate":[86],"absorption.":[87],"A":[88,118],"cluster":[89],"three":[91],"luminous":[92],"has":[95,108],"been":[96,110],"discovered":[97],"coincident":[98],"with":[99,113,120],"radio":[102],"source":[103,116],"W33.":[105],"Infrared":[106],"emission":[107],"also":[109],"found":[111],"associated":[112],"maser":[115],"W33":[117],"W3(D).":[121],"Subject":[122],"headings:":[123],"infrared:":[124],"-":[126,129],"nebulae:":[127],"general":[128],"stars:":[130],"-sequence":[131]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}