ALMA Reveals a Collision between Protostellar Outflows in BHR 71

Autores
Zapata, Luis A.; Fernandez Lopez, Manuel; Rodriguez, Luis F.; Garay, Guido; Takahashi, Satoko; Lee, Chin-Fei; Hernández Gómez, Antonio
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
For a binary protostellar outflow system in which its members are located close to each other (the separation being smaller than the addition of the widths of the flows) and with large opening angles, the collision seems unavoidable regardless of the orientation of the outflows. This is in contrast to the current observational evidence of just a few regions with indications of colliding outflows, which could also suggests that the average distance between protostars is larger than the width of the flows. Here, using sensitive observations of the Atacama Large Millimeter/Submillimeter Array, we report resolved images of carbon monoxide (CO) toward the binary flows associated with the BHR 71 protostellar system. These images reveal for the first time solid evidence that their flows are partially colliding, increasing the brightness of the CO, the dispersion of the velocities in the interaction zone, and changing part of the orientation in one of the flows. Additionally, this impact opened the possibility of knowing the three-dimensional geometry of the system, revealing that one of its components (IRS 2) should be closer to us.
Fil: Zapata, Luis A.. Universidad Nacional Autónoma de México; México
Fil: Fernandez Lopez, Manuel. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: Rodriguez, Luis F.. Universidad Nacional Autónoma de México; México
Fil: Garay, Guido. Universidad de Chile; Chile
Fil: Takahashi, Satoko. Atacama Large Millimeter-submillimeter Array; Chile. Naoj Chile Observatory; Chile
Fil: Lee, Chin-Fei. Academia Sinica; China
Fil: Hernández Gómez, Antonio. Universidad Nacional Autónoma de México; México
Materia
STARS: FORMATION
ALMA
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:11336/82425
Acceder
id CONICETDig_2f3914ac996a3d0985c47536bea3702a
oai_identifier_str oai:ri.conicet.gov.ar:11336/82425
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling ALMA Reveals a Collision between Protostellar Outflows in BHR 71Zapata, Luis A.Fernandez Lopez, ManuelRodriguez, Luis F.Garay, GuidoTakahashi, SatokoLee, Chin-FeiHernández Gómez, AntonioSTARS: FORMATIONALMAhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1For a binary protostellar outflow system in which its members are located close to each other (the separation being smaller than the addition of the widths of the flows) and with large opening angles, the collision seems unavoidable regardless of the orientation of the outflows. This is in contrast to the current observational evidence of just a few regions with indications of colliding outflows, which could also suggests that the average distance between protostars is larger than the width of the flows. Here, using sensitive observations of the Atacama Large Millimeter/Submillimeter Array, we report resolved images of carbon monoxide (CO) toward the binary flows associated with the BHR 71 protostellar system. These images reveal for the first time solid evidence that their flows are partially colliding, increasing the brightness of the CO, the dispersion of the velocities in the interaction zone, and changing part of the orientation in one of the flows. Additionally, this impact opened the possibility of knowing the three-dimensional geometry of the system, revealing that one of its components (IRS 2) should be closer to us.Fil: Zapata, Luis A.. Universidad Nacional Autónoma de México; MéxicoFil: Fernandez Lopez, Manuel. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; ArgentinaFil: Rodriguez, Luis F.. Universidad Nacional Autónoma de México; MéxicoFil: Garay, Guido. Universidad de Chile; ChileFil: Takahashi, Satoko. Atacama Large Millimeter-submillimeter Array; Chile. Naoj Chile Observatory; ChileFil: Lee, Chin-Fei. Academia Sinica; ChinaFil: Hernández Gómez, Antonio. Universidad Nacional Autónoma de México; MéxicoIOP Publishing2018-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/82425Zapata, Luis A.; Fernandez Lopez, Manuel; Rodriguez, Luis F.; Garay, Guido; Takahashi, Satoko; et al.; ALMA Reveals a Collision between Protostellar Outflows in BHR 71; IOP Publishing; Astronomical Journal; 156; 5; 11-2018; 1-130004-6256CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-3881/aae51einfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-3881/aae51einfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:39:00Zoai:ri.conicet.gov.ar:11336/82425instacron: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 09:39:01.122CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv ALMA Reveals a Collision between Protostellar Outflows in BHR 71
title ALMA Reveals a Collision between Protostellar Outflows in BHR 71
spellingShingle ALMA Reveals a Collision between Protostellar Outflows in BHR 71
Zapata, Luis A.
STARS: FORMATION
ALMA
title_short ALMA Reveals a Collision between Protostellar Outflows in BHR 71
title_full ALMA Reveals a Collision between Protostellar Outflows in BHR 71
title_fullStr ALMA Reveals a Collision between Protostellar Outflows in BHR 71
title_full_unstemmed ALMA Reveals a Collision between Protostellar Outflows in BHR 71
title_sort ALMA Reveals a Collision between Protostellar Outflows in BHR 71
dc.creator.none.fl_str_mv Zapata, Luis A.
Fernandez Lopez, Manuel
Rodriguez, Luis F.
Garay, Guido
Takahashi, Satoko
Lee, Chin-Fei
Hernández Gómez, Antonio
author Zapata, Luis A.
author_facet Zapata, Luis A.
Fernandez Lopez, Manuel
Rodriguez, Luis F.
Garay, Guido
Takahashi, Satoko
Lee, Chin-Fei
Hernández Gómez, Antonio
author_role author
author2 Fernandez Lopez, Manuel
Rodriguez, Luis F.
Garay, Guido
Takahashi, Satoko
Lee, Chin-Fei
Hernández Gómez, Antonio
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv STARS: FORMATION
ALMA
topic STARS: FORMATION
ALMA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv For a binary protostellar outflow system in which its members are located close to each other (the separation being smaller than the addition of the widths of the flows) and with large opening angles, the collision seems unavoidable regardless of the orientation of the outflows. This is in contrast to the current observational evidence of just a few regions with indications of colliding outflows, which could also suggests that the average distance between protostars is larger than the width of the flows. Here, using sensitive observations of the Atacama Large Millimeter/Submillimeter Array, we report resolved images of carbon monoxide (CO) toward the binary flows associated with the BHR 71 protostellar system. These images reveal for the first time solid evidence that their flows are partially colliding, increasing the brightness of the CO, the dispersion of the velocities in the interaction zone, and changing part of the orientation in one of the flows. Additionally, this impact opened the possibility of knowing the three-dimensional geometry of the system, revealing that one of its components (IRS 2) should be closer to us.
Fil: Zapata, Luis A.. Universidad Nacional Autónoma de México; México
Fil: Fernandez Lopez, Manuel. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: Rodriguez, Luis F.. Universidad Nacional Autónoma de México; México
Fil: Garay, Guido. Universidad de Chile; Chile
Fil: Takahashi, Satoko. Atacama Large Millimeter-submillimeter Array; Chile. Naoj Chile Observatory; Chile
Fil: Lee, Chin-Fei. Academia Sinica; China
Fil: Hernández Gómez, Antonio. Universidad Nacional Autónoma de México; México
description For a binary protostellar outflow system in which its members are located close to each other (the separation being smaller than the addition of the widths of the flows) and with large opening angles, the collision seems unavoidable regardless of the orientation of the outflows. This is in contrast to the current observational evidence of just a few regions with indications of colliding outflows, which could also suggests that the average distance between protostars is larger than the width of the flows. Here, using sensitive observations of the Atacama Large Millimeter/Submillimeter Array, we report resolved images of carbon monoxide (CO) toward the binary flows associated with the BHR 71 protostellar system. These images reveal for the first time solid evidence that their flows are partially colliding, increasing the brightness of the CO, the dispersion of the velocities in the interaction zone, and changing part of the orientation in one of the flows. Additionally, this impact opened the possibility of knowing the three-dimensional geometry of the system, revealing that one of its components (IRS 2) should be closer to us.
publishDate 2018
dc.date.none.fl_str_mv 2018-11
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/11336/82425
Zapata, Luis A.; Fernandez Lopez, Manuel; Rodriguez, Luis F.; Garay, Guido; Takahashi, Satoko; et al.; ALMA Reveals a Collision between Protostellar Outflows in BHR 71; IOP Publishing; Astronomical Journal; 156; 5; 11-2018; 1-13
0004-6256
CONICET Digital
CONICET
url http://hdl.handle.net/11336/82425
identifier_str_mv Zapata, Luis A.; Fernandez Lopez, Manuel; Rodriguez, Luis F.; Garay, Guido; Takahashi, Satoko; et al.; ALMA Reveals a Collision between Protostellar Outflows in BHR 71; IOP Publishing; Astronomical Journal; 156; 5; 11-2018; 1-13
0004-6256
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-3881/aae51e
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-3881/aae51e
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
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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
_version_ 1844613233663541248
score 13.070432

Publicaciones similares