Molecular gas in the star-forming region IRAS 08589-4714

Autores
Saldaño, Hugo P.; Vasquez, Javier; Cappa, Cristina Elisabet; Gómez, M.; Duronea, Nicolás Urbano; Rubio, Mónica
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Aims. We present an analysis of the region IRAS 08589-4714 with the aim of characterizing the molecular environment. Methods. We observed the 12CO(3-2), 13CO(3-2), C18O(3-2), HCO+(3-2), and HCN(3-2) molecular lines in a region of 150″ × 150″, centered on the IRAS source, to analyze the distribution and characteristics of the molecular gas linked to the IRAS source. Results. The molecular gas distribution reveals a molecular clump that is coincident with IRAS 08589-4714 and with a dust clump detected at 1.2 mm. The molecular clump is 0.45 pc in radius and its mass and H2 volume density are 310 M⊙ and 1.2 × 104 cm-3, respectively. Two overdensities were identified within the clump in HCN(3-2) and HCO+(3-2) lines. A comparison of the LTE and virial masses suggests that the clump is collapsing in regions that harbor young stellar objects. An analysis of the molecular lines suggests that they are driving molecular outflows.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto Argentino de Radioastronomía
Materia
Ciencias Astronómicas
Circumstellar matter
ISM: individual objects: IRAS 08589-4714
ISM: jets and outflows
ISM: molecules
Stars: formation
Stars: massive
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/85788

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repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Molecular gas in the star-forming region IRAS 08589-4714Saldaño, Hugo P.Vasquez, JavierCappa, Cristina ElisabetGómez, M.Duronea, Nicolás UrbanoRubio, MónicaCiencias AstronómicasCircumstellar matterISM: individual objects: IRAS 08589-4714ISM: jets and outflowsISM: moleculesStars: formationStars: massiveAims. We present an analysis of the region IRAS 08589-4714 with the aim of characterizing the molecular environment. Methods. We observed the <SUP>12</SUP>CO(3-2), <SUP>13</SUP>CO(3-2), C<SUP>18</SUP>O(3-2), HCO<SUP>+</SUP>(3-2), and HCN(3-2) molecular lines in a region of 150″ × 150″, centered on the IRAS source, to analyze the distribution and characteristics of the molecular gas linked to the IRAS source. Results. The molecular gas distribution reveals a molecular clump that is coincident with IRAS 08589-4714 and with a dust clump detected at 1.2 mm. The molecular clump is 0.45 pc in radius and its mass and H<SUB>2</SUB> volume density are 310 M⊙ and 1.2 × 10<SUP>4</SUP> cm<SUP>-3</SUP>, respectively. Two overdensities were identified within the clump in HCN(3-2) and HCO<SUP>+</SUP>(3-2) lines. A comparison of the LTE and virial masses suggests that the clump is collapsing in regions that harbor young stellar objects. An analysis of the molecular lines suggests that they are driving molecular outflows.Facultad de Ciencias Astronómicas y GeofísicasInstituto Argentino de Radioastronomía2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/85788enginfo:eu-repo/semantics/altIdentifier/issn/0004-6361info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201527911info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:44Zoai:sedici.unlp.edu.ar:10915/85788Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:44.649SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Molecular gas in the star-forming region IRAS 08589-4714
title Molecular gas in the star-forming region IRAS 08589-4714
spellingShingle Molecular gas in the star-forming region IRAS 08589-4714
Saldaño, Hugo P.
Ciencias Astronómicas
Circumstellar matter
ISM: individual objects: IRAS 08589-4714
ISM: jets and outflows
ISM: molecules
Stars: formation
Stars: massive
title_short Molecular gas in the star-forming region IRAS 08589-4714
title_full Molecular gas in the star-forming region IRAS 08589-4714
title_fullStr Molecular gas in the star-forming region IRAS 08589-4714
title_full_unstemmed Molecular gas in the star-forming region IRAS 08589-4714
title_sort Molecular gas in the star-forming region IRAS 08589-4714
dc.creator.none.fl_str_mv Saldaño, Hugo P.
Vasquez, Javier
Cappa, Cristina Elisabet
Gómez, M.
Duronea, Nicolás Urbano
Rubio, Mónica
author Saldaño, Hugo P.
author_facet Saldaño, Hugo P.
Vasquez, Javier
Cappa, Cristina Elisabet
Gómez, M.
Duronea, Nicolás Urbano
Rubio, Mónica
author_role author
author2 Vasquez, Javier
Cappa, Cristina Elisabet
Gómez, M.
Duronea, Nicolás Urbano
Rubio, Mónica
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Circumstellar matter
ISM: individual objects: IRAS 08589-4714
ISM: jets and outflows
ISM: molecules
Stars: formation
Stars: massive
topic Ciencias Astronómicas
Circumstellar matter
ISM: individual objects: IRAS 08589-4714
ISM: jets and outflows
ISM: molecules
Stars: formation
Stars: massive
dc.description.none.fl_txt_mv Aims. We present an analysis of the region IRAS 08589-4714 with the aim of characterizing the molecular environment. Methods. We observed the <SUP>12</SUP>CO(3-2), <SUP>13</SUP>CO(3-2), C<SUP>18</SUP>O(3-2), HCO<SUP>+</SUP>(3-2), and HCN(3-2) molecular lines in a region of 150″ × 150″, centered on the IRAS source, to analyze the distribution and characteristics of the molecular gas linked to the IRAS source. Results. The molecular gas distribution reveals a molecular clump that is coincident with IRAS 08589-4714 and with a dust clump detected at 1.2 mm. The molecular clump is 0.45 pc in radius and its mass and H<SUB>2</SUB> volume density are 310 M⊙ and 1.2 × 10<SUP>4</SUP> cm<SUP>-3</SUP>, respectively. Two overdensities were identified within the clump in HCN(3-2) and HCO<SUP>+</SUP>(3-2) lines. A comparison of the LTE and virial masses suggests that the clump is collapsing in regions that harbor young stellar objects. An analysis of the molecular lines suggests that they are driving molecular outflows.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto Argentino de Radioastronomía
description Aims. We present an analysis of the region IRAS 08589-4714 with the aim of characterizing the molecular environment. Methods. We observed the <SUP>12</SUP>CO(3-2), <SUP>13</SUP>CO(3-2), C<SUP>18</SUP>O(3-2), HCO<SUP>+</SUP>(3-2), and HCN(3-2) molecular lines in a region of 150″ × 150″, centered on the IRAS source, to analyze the distribution and characteristics of the molecular gas linked to the IRAS source. Results. The molecular gas distribution reveals a molecular clump that is coincident with IRAS 08589-4714 and with a dust clump detected at 1.2 mm. The molecular clump is 0.45 pc in radius and its mass and H<SUB>2</SUB> volume density are 310 M⊙ and 1.2 × 10<SUP>4</SUP> cm<SUP>-3</SUP>, respectively. Two overdensities were identified within the clump in HCN(3-2) and HCO<SUP>+</SUP>(3-2) lines. A comparison of the LTE and virial masses suggests that the clump is collapsing in regions that harbor young stellar objects. An analysis of the molecular lines suggests that they are driving molecular outflows.
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/85788
url http://sedici.unlp.edu.ar/handle/10915/85788
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0004-6361
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201527911
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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