A SUBMILLIMETER STUDY OF THE IR DUST BUBBLE S 21 AND ITS ENVIRONS

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dc.contributor.authorCappa, C. E.
dc.contributor.authorDuronea, N. U.
dc.contributor.authorVasquez, J.
dc.contributor.authorRubio, M.
dc.contributor.authorFirpo, V.
dc.contributor.authorLopez Caraballo, C. H.
dc.contributor.authorBorissova, J.
dc.date.accessioned2024-01-10T13:46:11Z
dc.date.available2024-01-10T13:46:11Z
dc.date.issued2017
dc.description.abstractBased on the molecular emission in the (CO)-C-12(2-1) and (CO)-C-13(2-1) lines, and on the continuum emission in the MIR and FIR towards the S 21 IR dust bubble, we analyze the physical characteristics of the gas and dust linked to the nebula and the presence of young stellar objects (YSOs) in its environs. The line emission reveals a clumpy molecular shell, 1.4 pc in radius, encircling S 21. The total molecular mass in the shell amounts to 2900 M-circle dot and the original ambient density, 2.1 x10(3) cm(-3), indicating that the bubble is evolving in a high density interstellar medium. The image at 24 mu m shows warm dust inside the bubble, while the emission in the range 250 to 870 mu m reveals cold dust in its outskirts, coincident with the molecular gas. The detection of radio continuum emission indicates that the bubble is a compact Hii region. A search for YSOs using photometric criteria allowed to identify many candidates projected onto the molecular clumps. We analize if the collect and collapse process has triggered a new generation of stars.
dc.description.funderCONICYT
dc.description.funderFaculty of the European Space Astronomy Centre (ESAC)
dc.description.funderCONICET of Argentina
dc.description.funderUNLP
dc.description.funderCONICYT of Chile through FONDECYT grant
dc.description.funderESO Public Survey programme
dc.description.funderMinistry of Economy, Development, and Tourism's Millennium Science Initiative
dc.description.funderNational Aeronautics and Space Administration
dc.description.funderNational Science Foundation
dc.format.extent15 páginas
dc.fuente.origenWOS
dc.identifier.issn0185-1101
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79130
dc.identifier.wosidWOS:000398334000009
dc.information.autorucFísica;Lopez C;S/I;1041691
dc.issue.numero1
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final93
dc.pagina.inicio79
dc.publisherUNIV NACIONAL AUTONOMA MEXICO, INST DE ASTRONOMIA
dc.revistaREVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA
dc.rightsregistro bibliográfico
dc.subjectHII regions
dc.subjectISM: individual objects (S 21)
dc.subjectISM: molecules
dc.subjectstars: protostars
dc.subjectTRIGGERED STAR-FORMATION
dc.subjectGALACTIC PLANE SURVEY
dc.subjectARRAY CAMERA IRAC
dc.subject1ST DATA RELEASE
dc.subjectMILKY-WAY
dc.subjectCLOUD MASSES
dc.subjectHII-REGIONS
dc.subjectO-STARS
dc.subjectFIELD
dc.subjectCOLORS
dc.titleA SUBMILLIMETER STUDY OF THE IR DUST BUBBLE S 21 AND ITS ENVIRONS
dc.typeartículo
dc.volumen53
sipa.codpersvinculados1041691
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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