Discovery of a dense molecular cloud towards a young massive embedded star in 30 Doradus

Autores
Rubio, M.; Paron, Sergio Ariel; Dubner, Gloria Mabel
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Context. The 30 Doradus region in the Large Magellanic Cloud is one of the most outstanding star-forming regions of the Local Group and a primary target for studying star formation in an environment of low metallicity. Aims. To obtain a more complete picture of the cool gas that has not yet been consumed or dispersed, we searched for line emission from molecular clouds that could be associated with molecular hydrogen emission detected in the region. Methods. We obtained a high sensitivity 12CO J = 2–1 map with the 15-m SEST telescope, complemented by pointed observations of 13CO J = 2–1 and CS J = 2–1. Results. We report the discovery of a dense molecular cloud towards an embedded young massive star at ∼20 (∼5 pc, at the distance of 50 kpc) northwest of R136, the compact massive central stellar cluster powering 30 Doradus in the LMC, which could be triggering star formation in the surrounding molecular clouds. We derived a molecular mass of 104 M , a linear radius of 3 pc, as an upper limit, and a mean density of 103 cm−3 for the cloud. The detection of the CS J = 2–1 emission line indicates higher densities, ∼106 cm−3. The dense molecular cloud is associated with molecular 2.12 μm H2 emission. We suggest that the observed molecular gas could be the remains of dense molecular material surviving the action of strong UV fields and winds in which the young massive star has formed.
Fil: Rubio, M.. Universidad de Chile; Chile
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
Fil: Dubner, Gloria Mabel. 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
Materia
Magellanic Clouds
HII regions
ISM: individual objects: 30 Doradus
ISM: molecules
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/21515
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/21515
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Discovery of a dense molecular cloud towards a young massive embedded star in 30 DoradusRubio, M.Paron, Sergio ArielDubner, Gloria MabelMagellanic CloudsHII regionsISM: individual objects: 30 DoradusISM: moleculeshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. The 30 Doradus region in the Large Magellanic Cloud is one of the most outstanding star-forming regions of the Local Group and a primary target for studying star formation in an environment of low metallicity. Aims. To obtain a more complete picture of the cool gas that has not yet been consumed or dispersed, we searched for line emission from molecular clouds that could be associated with molecular hydrogen emission detected in the region. Methods. We obtained a high sensitivity 12CO J = 2–1 map with the 15-m SEST telescope, complemented by pointed observations of 13CO J = 2–1 and CS J = 2–1. Results. We report the discovery of a dense molecular cloud towards an embedded young massive star at ∼20 (∼5 pc, at the distance of 50 kpc) northwest of R136, the compact massive central stellar cluster powering 30 Doradus in the LMC, which could be triggering star formation in the surrounding molecular clouds. We derived a molecular mass of 104 M , a linear radius of 3 pc, as an upper limit, and a mean density of 103 cm−3 for the cloud. The detection of the CS J = 2–1 emission line indicates higher densities, ∼106 cm−3. The dense molecular cloud is associated with molecular 2.12 μm H2 emission. We suggest that the observed molecular gas could be the remains of dense molecular material surviving the action of strong UV fields and winds in which the young massive star has formed.Fil: Rubio, M.. Universidad de Chile; ChileFil: 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; ArgentinaFil: Dubner, Gloria Mabel. 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; ArgentinaEDP Sciences2009-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/21515Rubio, M.; Paron, Sergio Ariel; Dubner, Gloria Mabel; Discovery of a dense molecular cloud towards a young massive embedded star in 30 Doradus; EDP Sciences; Astronomy and Astrophysics; 505; 1; 10-2009; 177-1810004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/200810431info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2009/37/aa10431-08/aa10431-08.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:17:28Zoai:ri.conicet.gov.ar:11336/21515instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:17:29.152CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Discovery of a dense molecular cloud towards a young massive embedded star in 30 Doradus
title Discovery of a dense molecular cloud towards a young massive embedded star in 30 Doradus
spellingShingle Discovery of a dense molecular cloud towards a young massive embedded star in 30 Doradus
Rubio, M.
Magellanic Clouds
HII regions
ISM: individual objects: 30 Doradus
ISM: molecules
title_short Discovery of a dense molecular cloud towards a young massive embedded star in 30 Doradus
title_full Discovery of a dense molecular cloud towards a young massive embedded star in 30 Doradus
title_fullStr Discovery of a dense molecular cloud towards a young massive embedded star in 30 Doradus
title_full_unstemmed Discovery of a dense molecular cloud towards a young massive embedded star in 30 Doradus
title_sort Discovery of a dense molecular cloud towards a young massive embedded star in 30 Doradus
dc.creator.none.fl_str_mv Rubio, M.
Paron, Sergio Ariel
Dubner, Gloria Mabel
author Rubio, M.
author_facet Rubio, M.
Paron, Sergio Ariel
Dubner, Gloria Mabel
author_role author
author2 Paron, Sergio Ariel
Dubner, Gloria Mabel
author2_role author
author
dc.subject.none.fl_str_mv Magellanic Clouds
HII regions
ISM: individual objects: 30 Doradus
ISM: molecules
topic Magellanic Clouds
HII regions
ISM: individual objects: 30 Doradus
ISM: molecules
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Context. The 30 Doradus region in the Large Magellanic Cloud is one of the most outstanding star-forming regions of the Local Group and a primary target for studying star formation in an environment of low metallicity. Aims. To obtain a more complete picture of the cool gas that has not yet been consumed or dispersed, we searched for line emission from molecular clouds that could be associated with molecular hydrogen emission detected in the region. Methods. We obtained a high sensitivity 12CO J = 2–1 map with the 15-m SEST telescope, complemented by pointed observations of 13CO J = 2–1 and CS J = 2–1. Results. We report the discovery of a dense molecular cloud towards an embedded young massive star at ∼20 (∼5 pc, at the distance of 50 kpc) northwest of R136, the compact massive central stellar cluster powering 30 Doradus in the LMC, which could be triggering star formation in the surrounding molecular clouds. We derived a molecular mass of 104 M , a linear radius of 3 pc, as an upper limit, and a mean density of 103 cm−3 for the cloud. The detection of the CS J = 2–1 emission line indicates higher densities, ∼106 cm−3. The dense molecular cloud is associated with molecular 2.12 μm H2 emission. We suggest that the observed molecular gas could be the remains of dense molecular material surviving the action of strong UV fields and winds in which the young massive star has formed.
Fil: Rubio, M.. Universidad de Chile; Chile
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
Fil: Dubner, Gloria Mabel. 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
description Context. The 30 Doradus region in the Large Magellanic Cloud is one of the most outstanding star-forming regions of the Local Group and a primary target for studying star formation in an environment of low metallicity. Aims. To obtain a more complete picture of the cool gas that has not yet been consumed or dispersed, we searched for line emission from molecular clouds that could be associated with molecular hydrogen emission detected in the region. Methods. We obtained a high sensitivity 12CO J = 2–1 map with the 15-m SEST telescope, complemented by pointed observations of 13CO J = 2–1 and CS J = 2–1. Results. We report the discovery of a dense molecular cloud towards an embedded young massive star at ∼20 (∼5 pc, at the distance of 50 kpc) northwest of R136, the compact massive central stellar cluster powering 30 Doradus in the LMC, which could be triggering star formation in the surrounding molecular clouds. We derived a molecular mass of 104 M , a linear radius of 3 pc, as an upper limit, and a mean density of 103 cm−3 for the cloud. The detection of the CS J = 2–1 emission line indicates higher densities, ∼106 cm−3. The dense molecular cloud is associated with molecular 2.12 μm H2 emission. We suggest that the observed molecular gas could be the remains of dense molecular material surviving the action of strong UV fields and winds in which the young massive star has formed.
publishDate 2009
dc.date.none.fl_str_mv 2009-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/21515
Rubio, M.; Paron, Sergio Ariel; Dubner, Gloria Mabel; Discovery of a dense molecular cloud towards a young massive embedded star in 30 Doradus; EDP Sciences; Astronomy and Astrophysics; 505; 1; 10-2009; 177-181
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/21515
identifier_str_mv Rubio, M.; Paron, Sergio Ariel; Dubner, Gloria Mabel; Discovery of a dense molecular cloud towards a young massive embedded star in 30 Doradus; EDP Sciences; Astronomy and Astrophysics; 505; 1; 10-2009; 177-181
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/200810431
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2009/37/aa10431-08/aa10431-08.html
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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