Please use this identifier to cite or link to this item: http://repositorio.ugto.mx/handle/20.500.12059/11818
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dc.rights.licensehttp://creativecommons.org/licenses/by-nc-nd/4.0es_MX
dc.creatorEDUARDO DE LA FUENTE ACOSTAes_MX
dc.creatorB. Alicia Porras Juárezes_MX
dc.creatorMIGUEL ANGEL TRINIDAD HERNANDEZes_MX
dc.creatorSTANLEY EUGENE KURTZ SMITHen
dc.creatorSIMON NICHOLAS KEMPen
dc.creatorDANIEL TAFOYA MARTINEZes_MX
dc.creatorJOSE DE JESUS FRANCO LOPEZes_MX
dc.creatorCARLOS ALANIAS RODRIGUEZ RICOes_MX
dc.date.accessioned2024-06-20T19:56:24Zes_MX
dc.date.available2024-06-20T19:56:24Z-
dc.date.issued2019-12-18-
dc.identifier.urihttp://repositorio.ugto.mx/handle/20.500.12059/11818-
dc.description.abstractIn this paper, we present the results of a morphological study performed on a sample of 28 ultracompact HII (UC HII) regions located near extended free–free emission, using radio continuum (RC) observations at 3.6cm with the C and D Very Large Array (VLA) configurations, with the aim of determining a direct connection between them. By using previously published observations in B and D VLA configurations, we compiled a final catalogue of 21 UC HII regions directly connected with the surrounding extended emission (EE). The observed morphology of most of the UC HII regions in RC emission is irregular (single- or multipeaked sources) and resembles a classical bubble structure in the Galactic plane with well-defined cometary arcs. RC images superimposed on colour composite Spitzer images reinforce the assignations of direct connection by the spatial coincidence between the UC components and regions of saturated 24μm emission. We also find that the presence of EE may be crucial to understand the observed infrared excess because an underestimation of ionizing Lyman photons was considered in previous works (e.g. Wood & Churchwell; Kurtz, Churchwell & Wood).en
dc.language.isoengen
dc.publisherRoyal Astronomical Societyes_MX
dc.relationdoi:10.1093/mnras/stz3482es_MX
dc.rightsinfo:eu-repo/semantics/openAccesses_MX
dc.sourceMonthly Notices Of The Royal Astronomical Society. MNRAS 492, 895–914 (2020)en
dc.titleUltracompact H II regions with extended emission: the complete viewen
dc.typeinfo:eu-repo/semantics/articlees_MX
dc.creator.idinfo:eu-repo/dai/mx/cvu/36441es_MX
dc.creator.idinfo:eu-repo/dai/mx/cvu/19313es_MX
dc.creator.idinfo:eu-repo/dai/mx/cvu/121860es_MX
dc.creator.idinfo:eu-repo/dai/mx/cvu/15269es_MX
dc.creator.idinfo:eu-repo/dai/mx/cvu/22341es_MX
dc.creator.idinfo:eu-repo/dai/mx/cvu/45134es_MX
dc.creator.idinfo:eu-repo/dai/mx/cvu/1360es_MX
dc.creator.idinfo:eu-repo/dai/mx/cvu/36596es_MX
dc.subject.ctiinfo:eu-repo/classification/cti/1es_MX
dc.subject.ctiinfo:eu-repo/classification/cti/21es_MX
dc.subject.ctiinfo:eu-repo/classification/cti/2101es_MX
dc.subject.keywordsStars - Formationen
dc.subject.keywordsInterStellar Medium (ISM) - Pre-main sequenceen
dc.subject.keywordsH II Regions - Bubblesen
dc.subject.keywordsRadio continuum emissionen
dc.type.versioninfo:eu-repo/semantics/acceptedVersiones_MX
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