Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 Outflow

Autores
López Vázquez, J. A.; Lee, Chin Fei; Fernandez Lopez, Manuel; Louvet, Fabien; Guerra Alvarado, O.; Zapata, Luis A.
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present archival Atacama Large Millimeter/submillimeter Array band 6 observations of the 13CO (J = 2–1) and 12CO (J = 2–1) molecular line emission of the protostellar system associated with HH 30. The 13CO molecular line shows the accretion disk while the molecular outflow is traced by the emission of the 12CO molecular line. We estimated a dynamical mass for the central object of 0.45 ± 0.14 M ⊙, and a mass for the molecular outflow of (1.83 ± 0.19) × 10‑4 M ⊙. The molecular outflow presents an internal cavity as well as multiple outflowing shell structures. We distinguish three different shells with constant expansion (∼4–6 km s‑1) and possible rotation signatures (≤0.5 km s‑1). We find that the shells can be explained by magnetocentrifugal disk winds with launching radii R launch ≲ 4 au and a small magnetic lever arm λ ∼ 1.6–1.9. The multiple shell structure may be the result of episodic ejections of the material from the accretion disk associated with three different epochs with dynamical ages of 497 ± 15 yr, 310 ± 9 yr, and 262 ± 11 yr for the first, second, and third shells, respectively. The outermost shell was ejected 187 ± 17 yr before the middle shell, while the middle shell was launched 48 ± 14 yr before the innermost shell. Our estimations of the linear and angular momentum rates of the outflow as well as the accretion luminosity are consistent with the values expected if the outflow of HH 30 is produced by a wide-angle disk wind.
Fil: López Vázquez, J. A.. Academia Sinica Institute of Astronomy and Astrophysics; China
Fil: Lee, Chin Fei. Academia Sinica Institute of Astronomy and Astrophysics; China
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: Louvet, Fabien. Universite Grenoble Alpes; Francia
Fil: Guerra Alvarado, O.. Leiden University; Países Bajos
Fil: Zapata, Luis A.. Universidad Nacional Autónoma de México; México
Materia
Accretion
Herbig-Haro objects
Star formation
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/267540
Acceder
id CONICETDig_11b1dafc719922b4a84f64998e030035
oai_identifier_str oai:ri.conicet.gov.ar:11336/267540
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 OutflowLópez Vázquez, J. A.Lee, Chin FeiFernandez Lopez, ManuelLouvet, FabienGuerra Alvarado, O.Zapata, Luis A.AccretionHerbig-Haro objectsStar formationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present archival Atacama Large Millimeter/submillimeter Array band 6 observations of the 13CO (J = 2–1) and 12CO (J = 2–1) molecular line emission of the protostellar system associated with HH 30. The 13CO molecular line shows the accretion disk while the molecular outflow is traced by the emission of the 12CO molecular line. We estimated a dynamical mass for the central object of 0.45 ± 0.14 M ⊙, and a mass for the molecular outflow of (1.83 ± 0.19) × 10‑4 M ⊙. The molecular outflow presents an internal cavity as well as multiple outflowing shell structures. We distinguish three different shells with constant expansion (∼4–6 km s‑1) and possible rotation signatures (≤0.5 km s‑1). We find that the shells can be explained by magnetocentrifugal disk winds with launching radii R launch ≲ 4 au and a small magnetic lever arm λ ∼ 1.6–1.9. The multiple shell structure may be the result of episodic ejections of the material from the accretion disk associated with three different epochs with dynamical ages of 497 ± 15 yr, 310 ± 9 yr, and 262 ± 11 yr for the first, second, and third shells, respectively. The outermost shell was ejected 187 ± 17 yr before the middle shell, while the middle shell was launched 48 ± 14 yr before the innermost shell. Our estimations of the linear and angular momentum rates of the outflow as well as the accretion luminosity are consistent with the values expected if the outflow of HH 30 is produced by a wide-angle disk wind.Fil: López Vázquez, J. A.. Academia Sinica Institute of Astronomy and Astrophysics; ChinaFil: Lee, Chin Fei. Academia Sinica Institute of Astronomy and Astrophysics; ChinaFil: 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: Louvet, Fabien. Universite Grenoble Alpes; FranciaFil: Guerra Alvarado, O.. Leiden University; Países BajosFil: Zapata, Luis A.. Universidad Nacional Autónoma de México; MéxicoIOP Publishing2024-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/267540López Vázquez, J. A.; Lee, Chin Fei; Fernandez Lopez, Manuel; Louvet, Fabien; Guerra Alvarado, O.; et al.; Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 Outflow; IOP Publishing; Astrophysical Journal; 962; 1; 2-2024; 1-170004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/ad132ainfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/ad132ainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:49:23Zoai:ri.conicet.gov.ar:11336/267540instacron: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 09:49:24.169CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 Outflow
title Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 Outflow
spellingShingle Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 Outflow
López Vázquez, J. A.
Accretion
Herbig-Haro objects
Star formation
title_short Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 Outflow
title_full Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 Outflow
title_fullStr Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 Outflow
title_full_unstemmed Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 Outflow
title_sort Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 Outflow
dc.creator.none.fl_str_mv López Vázquez, J. A.
Lee, Chin Fei
Fernandez Lopez, Manuel
Louvet, Fabien
Guerra Alvarado, O.
Zapata, Luis A.
author López Vázquez, J. A.
author_facet López Vázquez, J. A.
Lee, Chin Fei
Fernandez Lopez, Manuel
Louvet, Fabien
Guerra Alvarado, O.
Zapata, Luis A.
author_role author
author2 Lee, Chin Fei
Fernandez Lopez, Manuel
Louvet, Fabien
Guerra Alvarado, O.
Zapata, Luis A.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Accretion
Herbig-Haro objects
Star formation
topic Accretion
Herbig-Haro objects
Star formation
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present archival Atacama Large Millimeter/submillimeter Array band 6 observations of the 13CO (J = 2–1) and 12CO (J = 2–1) molecular line emission of the protostellar system associated with HH 30. The 13CO molecular line shows the accretion disk while the molecular outflow is traced by the emission of the 12CO molecular line. We estimated a dynamical mass for the central object of 0.45 ± 0.14 M ⊙, and a mass for the molecular outflow of (1.83 ± 0.19) × 10‑4 M ⊙. The molecular outflow presents an internal cavity as well as multiple outflowing shell structures. We distinguish three different shells with constant expansion (∼4–6 km s‑1) and possible rotation signatures (≤0.5 km s‑1). We find that the shells can be explained by magnetocentrifugal disk winds with launching radii R launch ≲ 4 au and a small magnetic lever arm λ ∼ 1.6–1.9. The multiple shell structure may be the result of episodic ejections of the material from the accretion disk associated with three different epochs with dynamical ages of 497 ± 15 yr, 310 ± 9 yr, and 262 ± 11 yr for the first, second, and third shells, respectively. The outermost shell was ejected 187 ± 17 yr before the middle shell, while the middle shell was launched 48 ± 14 yr before the innermost shell. Our estimations of the linear and angular momentum rates of the outflow as well as the accretion luminosity are consistent with the values expected if the outflow of HH 30 is produced by a wide-angle disk wind.
Fil: López Vázquez, J. A.. Academia Sinica Institute of Astronomy and Astrophysics; China
Fil: Lee, Chin Fei. Academia Sinica Institute of Astronomy and Astrophysics; China
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: Louvet, Fabien. Universite Grenoble Alpes; Francia
Fil: Guerra Alvarado, O.. Leiden University; Países Bajos
Fil: Zapata, Luis A.. Universidad Nacional Autónoma de México; México
description We present archival Atacama Large Millimeter/submillimeter Array band 6 observations of the 13CO (J = 2–1) and 12CO (J = 2–1) molecular line emission of the protostellar system associated with HH 30. The 13CO molecular line shows the accretion disk while the molecular outflow is traced by the emission of the 12CO molecular line. We estimated a dynamical mass for the central object of 0.45 ± 0.14 M ⊙, and a mass for the molecular outflow of (1.83 ± 0.19) × 10‑4 M ⊙. The molecular outflow presents an internal cavity as well as multiple outflowing shell structures. We distinguish three different shells with constant expansion (∼4–6 km s‑1) and possible rotation signatures (≤0.5 km s‑1). We find that the shells can be explained by magnetocentrifugal disk winds with launching radii R launch ≲ 4 au and a small magnetic lever arm λ ∼ 1.6–1.9. The multiple shell structure may be the result of episodic ejections of the material from the accretion disk associated with three different epochs with dynamical ages of 497 ± 15 yr, 310 ± 9 yr, and 262 ± 11 yr for the first, second, and third shells, respectively. The outermost shell was ejected 187 ± 17 yr before the middle shell, while the middle shell was launched 48 ± 14 yr before the innermost shell. Our estimations of the linear and angular momentum rates of the outflow as well as the accretion luminosity are consistent with the values expected if the outflow of HH 30 is produced by a wide-angle disk wind.
publishDate 2024
dc.date.none.fl_str_mv 2024-02
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/11336/267540
López Vázquez, J. A.; Lee, Chin Fei; Fernandez Lopez, Manuel; Louvet, Fabien; Guerra Alvarado, O.; et al.; Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 Outflow; IOP Publishing; Astrophysical Journal; 962; 1; 2-2024; 1-17
0004-637X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/267540
identifier_str_mv López Vázquez, J. A.; Lee, Chin Fei; Fernandez Lopez, Manuel; Louvet, Fabien; Guerra Alvarado, O.; et al.; Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 Outflow; IOP Publishing; Astrophysical Journal; 962; 1; 2-2024; 1-17
0004-637X
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://iopscience.iop.org/article/10.3847/1538-4357/ad132a
info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/ad132a
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/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
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score 13.070432

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