Outflow activity in the UCHII region G045.47+0.05

Autores
Ortega, Martin Eduardo; Paron, Sergio Ariel; Cichowolski, Silvina; Rubio, M.; Dubner, Gloria Mabel
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Aims. This work aims at investigating the molecular gas in the surroundings of the ultra-compact HII region G045.47+0.05 looking for evidence of molecular outflows.Methods. We carried out observations towards a region of 20×20 centered at RA=19h14m25.6s, dec.=+1109027.600(J2000) using the Atacama Submillimeter Telescope Experiment (ASTE; Chile) in the 12CO J=3?2, 13CO J=3?2, HCO+ J=4?3 and CS J=7?6 lines with an angular resolution of 2200. We complement these observations with public infrared data.Results. We characterize the physical parameters of the molecular clump where G045.47+0.0 is embedded. The detection of the CS J=7?6 line emission in the region reveals that the ultra-compact HII region G045.47+0.0 has not completely disrupted the dense gas where it was born. The HCO+ abundance observed towards G045.47+0.0 suggests the presence of molecular outflow activity in the region. From the analysis of the 12CO J=3?2 transition we report the presence of bipolar molecular outflows with a total mass of about 300 M. We derive a dynamical time (flow?s age) of about 10^5 yr for the outflow gas, in agreement with the presence of an ultra- compact HII region. We identify the source 2MASS 19142564+1109283 asthe massive protostar candidate to drive the molecular outflows. Based on the analysis of its spectral energy distribution we infer that it is an early B-type star of about 15 M. The results of this work support the scenario where the formation of massive stars, at least up to early B-type stars, is similar to that of low mass stars.
Fil: Ortega, Martin Eduardo. Consejo Nacional de Investigaciones 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: Paron, Sergio Ariel. Consejo Nacional de Investigaciones 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: Cichowolski, Silvina. Consejo Nacional de Investigaciones 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: Rubio, M.. Universidad de Chile; Chile
Fil: Dubner, Gloria Mabel. Consejo Nacional de Investigaciones 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
Star formation,
ISM: jets and outflows
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:11336/273493
Acceder
id CONICETDig_063f01ac6ae1005812b073dbcccca9c9
oai_identifier_str oai:ri.conicet.gov.ar:11336/273493
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Outflow activity in the UCHII region G045.47+0.05Ortega, Martin EduardoParon, Sergio ArielCichowolski, SilvinaRubio, M.Dubner, Gloria MabelStar formation,ISM: jets and outflowsISM: moleculeshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Aims. This work aims at investigating the molecular gas in the surroundings of the ultra-compact HII region G045.47+0.05 looking for evidence of molecular outflows.Methods. We carried out observations towards a region of 20×20 centered at RA=19h14m25.6s, dec.=+1109027.600(J2000) using the Atacama Submillimeter Telescope Experiment (ASTE; Chile) in the 12CO J=3?2, 13CO J=3?2, HCO+ J=4?3 and CS J=7?6 lines with an angular resolution of 2200. We complement these observations with public infrared data.Results. We characterize the physical parameters of the molecular clump where G045.47+0.0 is embedded. The detection of the CS J=7?6 line emission in the region reveals that the ultra-compact HII region G045.47+0.0 has not completely disrupted the dense gas where it was born. The HCO+ abundance observed towards G045.47+0.0 suggests the presence of molecular outflow activity in the region. From the analysis of the 12CO J=3?2 transition we report the presence of bipolar molecular outflows with a total mass of about 300 M. We derive a dynamical time (flow?s age) of about 10^5 yr for the outflow gas, in agreement with the presence of an ultra- compact HII region. We identify the source 2MASS 19142564+1109283 asthe massive protostar candidate to drive the molecular outflows. Based on the analysis of its spectral energy distribution we infer that it is an early B-type star of about 15 M. The results of this work support the scenario where the formation of massive stars, at least up to early B-type stars, is similar to that of low mass stars.Fil: Ortega, Martin Eduardo. Consejo Nacional de Investigaciones 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: Paron, Sergio Ariel. Consejo Nacional de Investigaciones 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: Cichowolski, Silvina. Consejo Nacional de Investigaciones 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: Rubio, M.. Universidad de Chile; ChileFil: Dubner, Gloria Mabel. Consejo Nacional de Investigaciones 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 Sciences2012-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/273493Ortega, Martin Eduardo; Paron, Sergio Ariel; Cichowolski, Silvina; Rubio, M.; Dubner, Gloria Mabel; Outflow activity in the UCHII region G045.47+0.05; EDP Sciences; Astronomy and Astrophysics; 546; 10-2012; 96-1080004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2012/10/aa19424-12/aa19424-12.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201219424info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:41:46Zoai:ri.conicet.gov.ar:11336/273493instacron: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:34982025-11-12 09:41:46.87CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Outflow activity in the UCHII region G045.47+0.05
title Outflow activity in the UCHII region G045.47+0.05
spellingShingle Outflow activity in the UCHII region G045.47+0.05
Ortega, Martin Eduardo
Star formation,
ISM: jets and outflows
ISM: molecules
title_short Outflow activity in the UCHII region G045.47+0.05
title_full Outflow activity in the UCHII region G045.47+0.05
title_fullStr Outflow activity in the UCHII region G045.47+0.05
title_full_unstemmed Outflow activity in the UCHII region G045.47+0.05
title_sort Outflow activity in the UCHII region G045.47+0.05
dc.creator.none.fl_str_mv Ortega, Martin Eduardo
Paron, Sergio Ariel
Cichowolski, Silvina
Rubio, M.
Dubner, Gloria Mabel
author Ortega, Martin Eduardo
author_facet Ortega, Martin Eduardo
Paron, Sergio Ariel
Cichowolski, Silvina
Rubio, M.
Dubner, Gloria Mabel
author_role author
author2 Paron, Sergio Ariel
Cichowolski, Silvina
Rubio, M.
Dubner, Gloria Mabel
author2_role author
author
author
author
dc.subject.none.fl_str_mv Star formation,
ISM: jets and outflows
ISM: molecules
topic Star formation,
ISM: jets and outflows
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 Aims. This work aims at investigating the molecular gas in the surroundings of the ultra-compact HII region G045.47+0.05 looking for evidence of molecular outflows.Methods. We carried out observations towards a region of 20×20 centered at RA=19h14m25.6s, dec.=+1109027.600(J2000) using the Atacama Submillimeter Telescope Experiment (ASTE; Chile) in the 12CO J=3?2, 13CO J=3?2, HCO+ J=4?3 and CS J=7?6 lines with an angular resolution of 2200. We complement these observations with public infrared data.Results. We characterize the physical parameters of the molecular clump where G045.47+0.0 is embedded. The detection of the CS J=7?6 line emission in the region reveals that the ultra-compact HII region G045.47+0.0 has not completely disrupted the dense gas where it was born. The HCO+ abundance observed towards G045.47+0.0 suggests the presence of molecular outflow activity in the region. From the analysis of the 12CO J=3?2 transition we report the presence of bipolar molecular outflows with a total mass of about 300 M. We derive a dynamical time (flow?s age) of about 10^5 yr for the outflow gas, in agreement with the presence of an ultra- compact HII region. We identify the source 2MASS 19142564+1109283 asthe massive protostar candidate to drive the molecular outflows. Based on the analysis of its spectral energy distribution we infer that it is an early B-type star of about 15 M. The results of this work support the scenario where the formation of massive stars, at least up to early B-type stars, is similar to that of low mass stars.
Fil: Ortega, Martin Eduardo. Consejo Nacional de Investigaciones 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: Paron, Sergio Ariel. Consejo Nacional de Investigaciones 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: Cichowolski, Silvina. Consejo Nacional de Investigaciones 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: Rubio, M.. Universidad de Chile; Chile
Fil: Dubner, Gloria Mabel. Consejo Nacional de Investigaciones 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 Aims. This work aims at investigating the molecular gas in the surroundings of the ultra-compact HII region G045.47+0.05 looking for evidence of molecular outflows.Methods. We carried out observations towards a region of 20×20 centered at RA=19h14m25.6s, dec.=+1109027.600(J2000) using the Atacama Submillimeter Telescope Experiment (ASTE; Chile) in the 12CO J=3?2, 13CO J=3?2, HCO+ J=4?3 and CS J=7?6 lines with an angular resolution of 2200. We complement these observations with public infrared data.Results. We characterize the physical parameters of the molecular clump where G045.47+0.0 is embedded. The detection of the CS J=7?6 line emission in the region reveals that the ultra-compact HII region G045.47+0.0 has not completely disrupted the dense gas where it was born. The HCO+ abundance observed towards G045.47+0.0 suggests the presence of molecular outflow activity in the region. From the analysis of the 12CO J=3?2 transition we report the presence of bipolar molecular outflows with a total mass of about 300 M. We derive a dynamical time (flow?s age) of about 10^5 yr for the outflow gas, in agreement with the presence of an ultra- compact HII region. We identify the source 2MASS 19142564+1109283 asthe massive protostar candidate to drive the molecular outflows. Based on the analysis of its spectral energy distribution we infer that it is an early B-type star of about 15 M. The results of this work support the scenario where the formation of massive stars, at least up to early B-type stars, is similar to that of low mass stars.
publishDate 2012
dc.date.none.fl_str_mv 2012-10
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/11336/273493
Ortega, Martin Eduardo; Paron, Sergio Ariel; Cichowolski, Silvina; Rubio, M.; Dubner, Gloria Mabel; Outflow activity in the UCHII region G045.47+0.05; EDP Sciences; Astronomy and Astrophysics; 546; 10-2012; 96-108
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/273493
identifier_str_mv Ortega, Martin Eduardo; Paron, Sergio Ariel; Cichowolski, Silvina; Rubio, M.; Dubner, Gloria Mabel; Outflow activity in the UCHII region G045.47+0.05; EDP Sciences; Astronomy and Astrophysics; 546; 10-2012; 96-108
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/url/https://www.aanda.org/articles/aa/abs/2012/10/aa19424-12/aa19424-12.html
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201219424
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
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 13.24909

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