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dc.contributor.author
Cappa, Cristina Elisabeth
dc.contributor.author
Rubio, R.
dc.contributor.author
Romero, Gisela Andrea
dc.contributor.author
Duronea, Nicolas Urbano
dc.contributor.author
Firpo, Verónica
dc.date.available
2015-06-08T18:48:40Z
dc.date.issued
2013-10-30
dc.identifier.citation
Cappa, Cristina Elisabeth; Rubio, R.; Romero, Gisela Andrea; Duronea, Nicolas Urbano; Firpo, Verónica; Star forming regions linked to RCW78 and the discovery of a new IR bubble; Edp Sciences S A; Astronomy And Astrophysics; 565; 30-10-2013; 1-16;
dc.identifier.issn
0004-6361
dc.identifier.uri
http://hdl.handle.net/11336/628
dc.description.abstract
With the aim of investigating the presence of molecular and dust clumps linked to two star forming regions identified  in the expanding molecular envelope of the stellar wind bubble RCW78, we analyzed the distribution of the molecular gas and cold dust. To accomplish this study we performed dust continuum observations at 870 mu m  and 13CO(2-1) line observations with the APEX telescope, using LABOCA and SHeFI-1 instruments, respectively, and analyzed Herschel images at 70, 160, 250, 350, and 500 mu m.  <br />These observations allowed us to identify cold dust clumps linked to region B (named the Southern clump) and region C (clumps 1 and 2) and an elongated Filament. Molecular gas was clearly detected linked to the Southern clump and the Filament. The velocity of the molecular gas is compatible with the location of the dense gas in the expanding envelope of RCW78. We estimate  dust temperatures and total masses for the dust condensations from  the emissions at different wavelengths in the far-IR and from the molecular line using LTE and the virial theorem. Masses obtained through different methods agree within a factor of 2-6. CC-diagrams and SED analysis of young stellar objects confirmed the presence of intermediate and low mass YSOs in the dust regions, indicating that moderate star formation is present.  In particular, a cluster of IR sources was identified inside the Southern clump. The IRAC image at 8 mu m revealed the existence of an infrared dust bubble of 16 arcsec in radius probably linked to the O-type star HD117797 located at 4 kpc. The distribution of the near and mid infrared emission  indicate that warm dust  is  associated with the bubble.    <br /><br />
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Edp Sciences S A
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Star Formation
dc.subject
Bubbles
dc.subject
Molecular Gas
dc.subject.classification
Ciencias Naturales y Exactas
dc.subject.classification
Otras Ciencias Naturales y Exactas
dc.subject.classification
Otras Ciencias Naturales y Exactas
dc.title
Star forming regions linked to RCW78 and the discovery of a new IR bubble
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-03-30 10:35:44.97925-03
dc.journal.volume
565
dc.journal.pagination
1-16
dc.journal.pais
Francia
dc.journal.ciudad
Paris
dc.description.fil
Fil: Cappa, Cristina Elisabeth. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto Argentino de Radioastronomia (i);
dc.description.fil
Fil: Rubio, R.. Universidad de Chile;
dc.description.fil
Fil: Romero, Gisela Andrea. Universidad Nacional de la Plata. Facultad de Cs.astronomicas y Geofisicas;
dc.description.fil
Fil: Duronea, Nicolas Urbano. Consejo Nacional de Invest.cientif.y Tecnicas. Centro Cientifico Tecnol.conicet - la Plata. Instituto Arg.de Radioastronomia (i);
dc.description.fil
Fil: Firpo, Verónica. Universidad de la Serena;
dc.journal.title
Astronomy And Astrophysics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.aanda.org/index.php?option=com_article&access=dkey&dkey=10.1051/0004-6361/201220990


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