Study of a bright-rimmed cloud at the border of the infrared dust bubble CN20

Autores
Ortega, Martin Eduardo; Giacani, Elsa Beatriz; Paron, Sergio Ariel; Rubio, M.
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We characterize an uncatalogued bright-rimmed cloud located onto the border of the infrared dust bubble CN20 in order to investigate triggered star formation. To do this, we carried out radio continuum observations at 8.9 GHz with the Jansky Very Large Array (JVLA) interferometer with a synthesized beam of 13′′× 5′′, and molecular observations using the Atacama Submillimeter Telescope Experiment (ASTE) in the 12CO J=3?2 and CS J=7?6 transitions. The analysis of the molecular observations and Herschel public data reveals the presence of a warm and dense clump with Tdust 25 K and n(H2) 3 × 105 cm−3. The high angular resolution and sensitivity of the new radio continuum data have revealed an arc-like radio filament in excellent correspondence with the illuminated border of the bright-rimmed cloud. This ionised boundary layer has an electron density of 176 cm−3. The spatial distribution of the young stellar object candidates likely related to the bright-rimmed cloud does not show
a clear evidence of a triggered origin. Finally, based on the evaluation of the pressure balance between the ionised and molecular gas, we conclude that the ionisation front has stalled at the surface of the clump.
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
Fil: Giacani, Elsa Beatriz. 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: 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: Rubio, M.. Universidad de Chile; Chile
Materia
ISM: HII regions
ISM: Clouds
stars: formation
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:11336/21578
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Study of a bright-rimmed cloud at the border of the infrared dust bubble CN20Ortega, Martin EduardoGiacani, Elsa BeatrizParon, Sergio ArielRubio, M.ISM: HII regionsISM: Cloudsstars: formationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We characterize an uncatalogued bright-rimmed cloud located onto the border of the infrared dust bubble CN20 in order to investigate triggered star formation. To do this, we carried out radio continuum observations at 8.9 GHz with the Jansky Very Large Array (JVLA) interferometer with a synthesized beam of 13′′× 5′′, and molecular observations using the Atacama Submillimeter Telescope Experiment (ASTE) in the 12CO J=3?2 and CS J=7?6 transitions. The analysis of the molecular observations and Herschel public data reveals the presence of a warm and dense clump with Tdust 25 K and n(H2) 3 × 105 cm−3. The high angular resolution and sensitivity of the new radio continuum data have revealed an arc-like radio filament in excellent correspondence with the illuminated border of the bright-rimmed cloud. This ionised boundary layer has an electron density of 176 cm−3. The spatial distribution of the young stellar object candidates likely related to the bright-rimmed cloud does not show<br />a clear evidence of a triggered origin. Finally, based on the evaluation of the pressure balance between the ionised and molecular gas, we conclude that the ionisation front has stalled at the surface of the clump.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; ArgentinaFil: Giacani, Elsa Beatriz. 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: 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: Rubio, M.. Universidad de Chile; ChileWiley Blackwell Publishing, Inc2016-02info: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/11336/21578Ortega, Martin Eduardo; Giacani, Elsa Beatriz; Paron, Sergio Ariel; Rubio, M.; Study of a bright-rimmed cloud at the border of the infrared dust bubble CN20; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 458; 4; 2-2016; 3684-36900035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stw317info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/458/4/3684/2613796/Study-of-a-bright-rimmed-cloud-at-the-border-of?redirectedFrom=fulltextinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:20:01Zoai:ri.conicet.gov.ar:11336/21578instacron: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 10:20:02.058CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Study of a bright-rimmed cloud at the border of the infrared dust bubble CN20
title Study of a bright-rimmed cloud at the border of the infrared dust bubble CN20
spellingShingle Study of a bright-rimmed cloud at the border of the infrared dust bubble CN20
Ortega, Martin Eduardo
ISM: HII regions
ISM: Clouds
stars: formation
title_short Study of a bright-rimmed cloud at the border of the infrared dust bubble CN20
title_full Study of a bright-rimmed cloud at the border of the infrared dust bubble CN20
title_fullStr Study of a bright-rimmed cloud at the border of the infrared dust bubble CN20
title_full_unstemmed Study of a bright-rimmed cloud at the border of the infrared dust bubble CN20
title_sort Study of a bright-rimmed cloud at the border of the infrared dust bubble CN20
dc.creator.none.fl_str_mv Ortega, Martin Eduardo
Giacani, Elsa Beatriz
Paron, Sergio Ariel
Rubio, M.
author Ortega, Martin Eduardo
author_facet Ortega, Martin Eduardo
Giacani, Elsa Beatriz
Paron, Sergio Ariel
Rubio, M.
author_role author
author2 Giacani, Elsa Beatriz
Paron, Sergio Ariel
Rubio, M.
author2_role author
author
author
dc.subject.none.fl_str_mv ISM: HII regions
ISM: Clouds
stars: formation
topic ISM: HII regions
ISM: Clouds
stars: formation
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We characterize an uncatalogued bright-rimmed cloud located onto the border of the infrared dust bubble CN20 in order to investigate triggered star formation. To do this, we carried out radio continuum observations at 8.9 GHz with the Jansky Very Large Array (JVLA) interferometer with a synthesized beam of 13′′× 5′′, and molecular observations using the Atacama Submillimeter Telescope Experiment (ASTE) in the 12CO J=3?2 and CS J=7?6 transitions. The analysis of the molecular observations and Herschel public data reveals the presence of a warm and dense clump with Tdust 25 K and n(H2) 3 × 105 cm−3. The high angular resolution and sensitivity of the new radio continuum data have revealed an arc-like radio filament in excellent correspondence with the illuminated border of the bright-rimmed cloud. This ionised boundary layer has an electron density of 176 cm−3. The spatial distribution of the young stellar object candidates likely related to the bright-rimmed cloud does not show<br />a clear evidence of a triggered origin. Finally, based on the evaluation of the pressure balance between the ionised and molecular gas, we conclude that the ionisation front has stalled at the surface of the clump.
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
Fil: Giacani, Elsa Beatriz. 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: 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: Rubio, M.. Universidad de Chile; Chile
description We characterize an uncatalogued bright-rimmed cloud located onto the border of the infrared dust bubble CN20 in order to investigate triggered star formation. To do this, we carried out radio continuum observations at 8.9 GHz with the Jansky Very Large Array (JVLA) interferometer with a synthesized beam of 13′′× 5′′, and molecular observations using the Atacama Submillimeter Telescope Experiment (ASTE) in the 12CO J=3?2 and CS J=7?6 transitions. The analysis of the molecular observations and Herschel public data reveals the presence of a warm and dense clump with Tdust 25 K and n(H2) 3 × 105 cm−3. The high angular resolution and sensitivity of the new radio continuum data have revealed an arc-like radio filament in excellent correspondence with the illuminated border of the bright-rimmed cloud. This ionised boundary layer has an electron density of 176 cm−3. The spatial distribution of the young stellar object candidates likely related to the bright-rimmed cloud does not show<br />a clear evidence of a triggered origin. Finally, based on the evaluation of the pressure balance between the ionised and molecular gas, we conclude that the ionisation front has stalled at the surface of the clump.
publishDate 2016
dc.date.none.fl_str_mv 2016-02
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/11336/21578
Ortega, Martin Eduardo; Giacani, Elsa Beatriz; Paron, Sergio Ariel; Rubio, M.; Study of a bright-rimmed cloud at the border of the infrared dust bubble CN20; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 458; 4; 2-2016; 3684-3690
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/21578
identifier_str_mv Ortega, Martin Eduardo; Giacani, Elsa Beatriz; Paron, Sergio Ariel; Rubio, M.; Study of a bright-rimmed cloud at the border of the infrared dust bubble CN20; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 458; 4; 2-2016; 3684-3690
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stw317
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/458/4/3684/2613796/Study-of-a-bright-rimmed-cloud-at-the-border-of?redirectedFrom=fulltext
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 Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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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