{"id":"https://openalex.org/W2135631990","doi":"https://doi.org/10.1088/0004-637x/695/2/1070","title":"RADIO RECOMBINATION LINES TOWARD THE GALACTIC CENTER LOBE","display_name":"RADIO RECOMBINATION LINES TOWARD THE GALACTIC CENTER LOBE","publication_year":2009,"publication_date":"2009-04-07","ids":{"openalex":"https://openalex.org/W2135631990","doi":"https://doi.org/10.1088/0004-637x/695/2/1070","mag":"2135631990"},"language":"en","primary_location":{"id":"doi:10.1088/0004-637x/695/2/1070","doi":"https://doi.org/10.1088/0004-637x/695/2/1070","is_oa":true,"landing_page_url":"https://doi.org/10.1088/0004-637x/695/2/1070","pdf_url":"https://iopscience.iop.org/article/10.1088/0004-637X/695/2/1070/pdf","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":["arxiv","crossref","datacite","doaj"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://iopscience.iop.org/article/10.1088/0004-637X/695/2/1070/pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5070168453","display_name":"Casey J. Law","orcid":"https://orcid.org/0000-0002-4119-9963","observed_orcids":["https://orcid.org/0000-0002-4119-9963"]},"institutions":[{"id":"https://openalex.org/I111979921","display_name":"Northwestern University","ror":"https://ror.org/000e0be47","country_code":"US","type":"education","lineage":["https://openalex.org/I111979921"]},{"id":"https://openalex.org/I887064364","display_name":"University of Amsterdam","ror":"https://ror.org/04dkp9463","country_code":"NL","type":"education","lineage":["https://openalex.org/I887064364"]},{"id":"https://openalex.org/I95457486","display_name":"University of California, Berkeley","ror":"https://ror.org/01an7q238","country_code":"US","type":"education","lineage":["https://openalex.org/I95457486"]}],"countries":["NL","US"],"is_corresponding":false,"raw_author_name":"C. J. Law","raw_affiliation_strings":["Astronomical Institute \u201cAnton Pannekoek,\u201d University of Amsterdam, Kruislaan 403, 1098 SJ Amsterdam, Netherlands","Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA; claw@astro.berkeley.edu, zadeh@northwestern.edu","Radio Astronomy Lab, University of California, Berkeley, CA 94720, USA; dbacker@astro.berkeley.edu","Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA","Radio Astronomy Lab, University of California, Berkeley, CA 94720, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Astronomical Institute \u201cAnton Pannekoek,\u201d University of Amsterdam, Kruislaan 403, 1098 SJ Amsterdam, Netherlands","institution_ids":["https://openalex.org/I887064364"]},{"raw_affiliation_string":"Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA; claw@astro.berkeley.edu, zadeh@northwestern.edu","institution_ids":["https://openalex.org/I111979921"]},{"raw_affiliation_string":"Radio Astronomy Lab, University of California, Berkeley, CA 94720, USA; dbacker@astro.berkeley.edu","institution_ids":["https://openalex.org/I95457486"]},{"raw_affiliation_string":"Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA","institution_ids":["https://openalex.org/I111979921"]},{"raw_affiliation_string":"Radio Astronomy Lab, University of California, Berkeley, CA 94720, USA","institution_ids":["https://openalex.org/I95457486"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5024638219","display_name":"D. C. Backer","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I95457486","display_name":"University of California, Berkeley","ror":"https://ror.org/01an7q238","country_code":"US","type":"education","lineage":["https://openalex.org/I95457486"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"D. Backer","raw_affiliation_strings":["Radio Astronomy Lab, University of California, Berkeley, CA 94720, USA; dbacker@astro.berkeley.edu","Radio Astronomy Lab, University of California, Berkeley, CA 94720, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Radio Astronomy Lab, University of California, Berkeley, CA 94720, USA; dbacker@astro.berkeley.edu","institution_ids":["https://openalex.org/I95457486"]},{"raw_affiliation_string":"Radio Astronomy Lab, University of California, Berkeley, CA 94720, USA","institution_ids":["https://openalex.org/I95457486"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110670462","display_name":"Farhad Yusef\u2010Zadeh","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I111979921","display_name":"Northwestern University","ror":"https://ror.org/000e0be47","country_code":"US","type":"education","lineage":["https://openalex.org/I111979921"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"F. Yusef-Zadeh","raw_affiliation_strings":["Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA; claw@astro.berkeley.edu, zadeh@northwestern.edu","Department of Physics and Astronomy, Northwestern University Evanston, IL 60208, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA; claw@astro.berkeley.edu, zadeh@northwestern.edu","institution_ids":["https://openalex.org/I111979921"]},{"raw_affiliation_string":"Department of Physics and Astronomy, Northwestern University Evanston, IL 60208, USA","institution_ids":["https://openalex.org/I111979921"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5085018248","display_name":"R. J. Maddalena","orcid":"https://orcid.org/0000-0002-2660-9581","observed_orcids":["https://orcid.org/0000-0002-2660-9581"]},"institutions":[{"id":"https://openalex.org/I2609998029","display_name":"National Radio Astronomy Observatory","ror":"https://ror.org/04m24yn62","country_code":"US","type":"facility","lineage":["https://openalex.org/I2609998029","https://openalex.org/I867387847"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"R. Maddalena","raw_affiliation_strings":["National Radio Astronomy Observatory, Green Bank, WV, 24944, USA; rmaddale@nrao.edu","National Radio Astronomy Observatory, Green Bank, WV, 24944, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Radio Astronomy Observatory, Green Bank, WV, 24944, USA; rmaddale@nrao.edu","institution_ids":["https://openalex.org/I2609998029"]},{"raw_affiliation_string":"National Radio Astronomy Observatory, Green Bank, WV, 24944, USA","institution_ids":["https://openalex.org/I2609998029"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":4499,"currency":"USD","value_usd":4499},"apc_paid":null,"fwci":0.8963,"has_fulltext":true,"cited_by_count":34,"citation_normalized_percentile":{"value":0.73908502,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"695","issue":"2","first_page":"1070","last_page":"1081"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10744","display_name":"Astrophysical Phenomena and Observations","score":0.5156000256538391,"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/T10744","display_name":"Astrophysical Phenomena and Observations","score":0.5156000256538391,"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":0.17679999768733978,"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/T10477","display_name":"Astrophysics and Star Formation Studies","score":0.17589999735355377,"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/radio-recombination-lines","display_name":"radio recombination lines","score":0.9900000095367432},{"id":"https://openalex.org/keywords/ionized-gas","display_name":"ionized gas","score":0.8399999737739563},{"id":"https://openalex.org/keywords/electron-temperature","display_name":"electron temperature","score":0.7919999957084656},{"id":"https://openalex.org/keywords/electron-density","display_name":"electron density","score":0.765999972820282},{"id":"https://openalex.org/keywords/line-ratios","display_name":"line ratios","score":0.5490000247955322},{"id":"https://openalex.org/keywords/local-thermodynamic-equilibrium","display_name":"local thermodynamic equilibrium","score":0.9359999895095825},{"id":"https://openalex.org/keywords/collisional-broadening","display_name":"pressure broadening","score":0.953000009059906},{"id":"https://openalex.org/keywords/ionized-outflows","display_name":"ionized outflows","score":0.7509999871253967},{"id":"https://openalex.org/keywords/galactic-center","display_name":"Galactic Center","score":0.4740000069141388}],"concepts":[{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.7877459526062012},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.7642669081687927},{"id":"https://openalex.org/C156695909","wikidata":"https://www.wikidata.org/wiki/Q3373825","display_name":"Recombination","level":3,"score":0.6178107857704163},{"id":"https://openalex.org/C98444146","wikidata":"https://www.wikidata.org/wiki/Q318","display_name":"Galaxy","level":2,"score":0.6155702471733093},{"id":"https://openalex.org/C132552067","wikidata":"https://www.wikidata.org/wiki/Q649112","display_name":"Galactic Center","level":3,"score":0.5916849970817566},{"id":"https://openalex.org/C198291218","wikidata":"https://www.wikidata.org/wiki/Q190382","display_name":"Ionization","level":3,"score":0.582866907119751},{"id":"https://openalex.org/C198352243","wikidata":"https://www.wikidata.org/wiki/Q37105","display_name":"Line (geometry)","level":2,"score":0.5763207674026489},{"id":"https://openalex.org/C2777876421","wikidata":"https://www.wikidata.org/wiki/Q1637174","display_name":"Lobe","level":2,"score":0.5080277919769287},{"id":"https://openalex.org/C125485243","wikidata":"https://www.wikidata.org/wiki/Q905186","display_name":"Electron density","level":3,"score":0.46900391578674316},{"id":"https://openalex.org/C82706917","wikidata":"https://www.wikidata.org/wiki/Q10251","display_name":"Plasma","level":2,"score":0.46124571561813354},{"id":"https://openalex.org/C20249676","wikidata":"https://www.wikidata.org/wiki/Q217012","display_name":"Radio galaxy","level":3,"score":0.44780126214027405},{"id":"https://openalex.org/C22175881","wikidata":"https://www.wikidata.org/wiki/Q7201785","display_name":"Electron temperature","level":3,"score":0.4464077353477478},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.4368681311607361},{"id":"https://openalex.org/C147120987","wikidata":"https://www.wikidata.org/wiki/Q2225","display_name":"Electron","level":2,"score":0.4149850010871887},{"id":"https://openalex.org/C145148216","wikidata":"https://www.wikidata.org/wiki/Q36496","display_name":"Ion","level":2,"score":0.17945921421051025},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.10948729515075684},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.09065020084381104},{"id":"https://openalex.org/C185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","level":1,"score":0.06870174407958984},{"id":"https://openalex.org/C105702510","wikidata":"https://www.wikidata.org/wiki/Q514","display_name":"Anatomy","level":1,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.1088/0004-637x/695/2/1070","doi":"https://doi.org/10.1088/0004-637x/695/2/1070","is_oa":true,"landing_page_url":"https://doi.org/10.1088/0004-637x/695/2/1070","pdf_url":"https://iopscience.iop.org/article/10.1088/0004-637X/695/2/1070/pdf","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"},{"id":"pmh:oai:dare.uva.nl:openaire_cris_publications/8e83a99d-2ce2-43fb-98a4-0a68c7f7e0d1","doi":null,"is_oa":false,"landing_page_url":"https://handle.uba.uva.nl/personal/pure/en/publications/radio-recombination-lines-toward-the-galactic-center-lobe(8e83a99d-2ce2-43fb-98a4-0a68c7f7e0d1).html","pdf_url":null,"source":{"id":"https://openalex.org/S4306400088","display_name":"UvA-DARE (University of Amsterdam)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I887064364","host_organization_name":"University of Amsterdam","host_organization_lineage":["https://openalex.org/I887064364"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Law, C J, Backer, D, Yusef-Zadeh, F & Maddalena, R 2009, 'Radio recombination lines toward the Galactic center lobe', Astrophysical Journal, vol. 695, no. 2, pp. 1070-1081. https://doi.org/10.1088/0004-637X/695/2/1070","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:arXiv.org:0901.1480","doi":null,"is_oa":true,"landing_page_url":"http://arxiv.org/abs/0901.1480","pdf_url":"https://arxiv.org/pdf/0901.1480","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"pmh:uvapub:oai:dare.uva.nl:publications/8e83a99d-2ce2-43fb-98a4-0a68c7f7e0d1","doi":null,"is_oa":false,"landing_page_url":"https://dare.uva.nl/personal/pure/en/publications/radio-recombination-lines-toward-the-galactic-center-lobe(8e83a99d-2ce2-43fb-98a4-0a68c7f7e0d1).html","pdf_url":null,"source":{"id":"https://openalex.org/S4306401843","display_name":"Data Archiving and Networked Services (DANS)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1322597698","host_organization_name":"Royal Netherlands Academy of Arts and Sciences","host_organization_lineage":["https://openalex.org/I1322597698"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Astrophysical Journal, 695(2), 1070 - 1081. IOP Publishing Ltd.","raw_type":"info:eu-repo/semantics/article"},{"id":"doi:10.48550/arxiv.0901.1480","doi":"https://doi.org/10.48550/arxiv.0901.1480","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.0901.1480","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"article-journal"}],"best_oa_location":{"id":"doi:10.1088/0004-637x/695/2/1070","doi":"https://doi.org/10.1088/0004-637x/695/2/1070","is_oa":true,"landing_page_url":"https://doi.org/10.1088/0004-637x/695/2/1070","pdf_url":"https://iopscience.iop.org/article/10.1088/0004-637X/695/2/1070/pdf","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"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2135631990.pdf","grobid_xml":"https://content.openalex.org/works/W2135631990.grobid-xml"},"referenced_works_count":46,"referenced_works":["https://openalex.org/W1637188539","https://openalex.org/W1974914737","https://openalex.org/W1974937031","https://openalex.org/W1977440267","https://openalex.org/W1978764303","https://openalex.org/W1982578441","https://openalex.org/W1984008682","https://openalex.org/W1990352829","https://openalex.org/W1998936450","https://openalex.org/W2000272224","https://openalex.org/W2004310296","https://openalex.org/W2007331400","https://openalex.org/W2007725308","https://openalex.org/W2011134181","https://openalex.org/W2011239149","https://openalex.org/W2011491298","https://openalex.org/W2012531179","https://openalex.org/W2014203667","https://openalex.org/W2018086584","https://openalex.org/W2019241607","https://openalex.org/W2022342070","https://openalex.org/W2031339869","https://openalex.org/W2032372224","https://openalex.org/W2034509052","https://openalex.org/W2035296944","https://openalex.org/W2046191203","https://openalex.org/W2048070483","https://openalex.org/W2056562333","https://openalex.org/W2066198434","https://openalex.org/W2067165074","https://openalex.org/W2072917870","https://openalex.org/W2073918919","https://openalex.org/W2075367150","https://openalex.org/W2082646667","https://openalex.org/W2085157086","https://openalex.org/W2086401946","https://openalex.org/W2127604531","https://openalex.org/W2143192129","https://openalex.org/W2148783522","https://openalex.org/W2156811398","https://openalex.org/W2176423449","https://openalex.org/W3037641373","https://openalex.org/W3100198339","https://openalex.org/W4210728254","https://openalex.org/W4232243714","https://openalex.org/W4234658851"],"related_works":["https://openalex.org/W7096501959","https://openalex.org/W7096958730","https://openalex.org/W2764503200","https://openalex.org/W2962854515","https://openalex.org/W2096968007","https://openalex.org/W3047586831","https://openalex.org/W2001118682","https://openalex.org/W3105818375","https://openalex.org/W36884656","https://openalex.org/W1974937031"],"abstract_inverted_index":{"The":[0,76,122,169],"Galactic":[1],"center":[2],"(GC)":[3],"lobe":[4,185],"is":[5,20,186],"a":[6,84,156,200,211],"degree-tall":[7],"shell":[8,201],"seen":[9,224],"in":[10,23,118,150,188,225],"radio":[11,69,89,123],"continuum":[12,90],"images":[13],"of":[14,53,62,68,100,147,159,207,213],"the":[15,24,48,54,60,80,88,110,131,151,180,183,189,194,203,208],"GC":[16,25,55,184,190],"region.":[17,191],"If":[18,192],"it":[19],"actually":[21],"located":[22,187],"region,":[26],"formation":[27],"models":[28],"would":[29],"require":[30],"massive":[31],"energy":[32],"input":[33],"(e.g.,":[34],"starburst":[35],"or":[36,50],"jet)":[37],"to":[38,87,105,135,198,221],"create":[39],"it.":[40],"At":[41],"present,":[42],"observations":[43,67,77,143],"have":[44],"not":[45],"strongly":[46],"constrained":[47],"location":[49],"physical":[51],"conditions":[52],"lobe.":[56],"This":[57],"paper":[58],"describes":[59],"analysis":[61],"new":[63],"and":[64,107,174],"archival":[65],"single-dish":[66],"recombination":[70,124],"lines":[71],"toward":[72],"this":[73],"enigmatic":[74],"object.":[75],"find":[78,108,145],"that":[79,93,109,182],"ionized":[81,195,222],"gas":[82,117,157,172,196],"has":[83],"morphology":[85,175],"similar":[86,220],"emission,":[91],"suggesting":[92],"they":[94],"are":[95,113,127,176],"associated.":[96],"We":[97],"study":[98],"averages":[99],"several":[101],"transitions":[102],"from":[103],"H106\u03b1":[104],"H191":[106],"line":[111,125],"ratios":[112],"most":[114],"consistent":[115,178],"with":[116,179,210],"local":[119],"thermodynamic":[120],"equilibrium.":[121],"widths":[126],"remarkably":[128],"narrow,":[129],"constraining":[130],"typical":[132],"electron":[133,170],"temperature":[134],"be":[136],"less":[137],"than":[138],"about":[139],"4000":[140],"K.":[141],"These":[142],"also":[144],"evidence":[146],"pressure":[148],"broadening":[149],"higher":[152],"electronic":[153],"states,":[154],"implying":[155],"density":[158],"n":[160],"e":[161],"=":[162],"910":[163],"+310":[164],"\u2212450":[165],"cm":[166],"\u22123":[167],".":[168],"temperature,":[171],"pressure,":[173],"all":[177],"idea":[181],"so,":[193],"appears":[197],"form":[199],"surrounding":[202],"central":[204],"100":[205],"parsecs":[206],"galaxy":[209],"mass":[212],"roughly":[214],"10":[215],"5":[216],"M":[217],"\u2609":[218],",":[219],"outflows":[223],"dwarf":[226],"starbursts.":[227]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":3},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":3}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}