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dc.contributor.author
Paron, Sergio Ariel
dc.contributor.author
Ortega, Martin Eduardo
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Astort, Ana
dc.contributor.author
Rubio, Monica
dc.contributor.author
Fariña, Cecilia
dc.date.available
2017-06-02T19:49:46Z
dc.date.issued
2014-02-10
dc.identifier.citation
Paron, Sergio Ariel; Ortega, Martin Eduardo; Astort, Ana; Rubio, Monica; Fariña, Cecilia; Studying the molecular ambient towards the young stellar object EGO G35.04-0.47; Oxford University Press; Publications of the Astronomical Society of Japan; 66; 1; 10-2-2014; 18,1-11
dc.identifier.uri
http://hdl.handle.net/11336/17405
dc.description.abstract
We are performing a systematic study of the interstellar medium around extended green objects (EGOs), likely massive young stellar objects driving outflows. EGO G35.04-0.47 is located towards a dark cloud at the north-western edge of an H II region. Recently, H2 jets were discovered towards this source, mainly towards its south-west, where the H2 1-0 S(1) emission peaks. Therefore, the source was catalogued as the molecular hydrogen emission-line object MHO 2429. In order to study the molecular ambient towards this star-forming site, we observed a region around the aforementioned EGO using the Atacama Submillimeter Telescope Experiment in the 12CO J = 3-2, 13CO J = 3-2, HCO+ J = 4-3, and CS J = 7-6 lines with an angular and spectral resolution of 22´´ and 0.11 km s-1, respectively. The observations revealed a molecular clump where the EGO is embedded at vLSR ? 51 km s-1, in coincidence with the velocity of a Class I 95 GHz methanol maser previously detected. Analyzing the 12CO line we discovered high velocity molecular gas in the range from 34 to 47 km s-1, most likely a blueshifted outflow driven by the EGO. The alignment and shape of this molecular structure coincide with those of the south-west lobe of MHO 2429, mainly between 46 and 47 km s-1, confirming that we are mapping its CO counterpart. Performing a spectral energy distribution analysis of EGO G35.04-0.47, we found that its central object should be an intermediate-mass young stellar object accreting mass at a rate similar to those found in some massive YSOs. We suggest that this source can become a massive YSO.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Oxford University Press
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Ism: Clouds
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Ism: Hii Region
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Jets
dc.subject
Outflows
dc.subject.classification
Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Studying the molecular ambient towards the young stellar object EGO G35.04-0.47
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-06-01T16:46:42Z
dc.journal.volume
66
dc.journal.number
1
dc.journal.pagination
18,1-11
dc.journal.pais
Reino Unido
dc.description.fil
Fil: Paron, Sergio Ariel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
dc.description.fil
Fil: Ortega, Martin Eduardo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
dc.description.fil
Fil: Astort, Ana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
dc.description.fil
Fil: Rubio, Monica. Universidad de Chile. Facultad de Ciencias Fisicas y Matematicas; Chile
dc.description.fil
Fil: Fariña, Cecilia. Isaac Newton Group of Telescopes; España
dc.journal.title
Publications of the Astronomical Society of Japan
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/pasj/article-lookup/doi/10.1093/pasj/pst018
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info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/pdf/1309.6962.pdf
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/pasj/pst018


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