The Circumestellar Disk of the B0 Protostar Powering the HH 80-81 Radio Jet

Autores
Girart, J. M.; Estalella, R.; Fernandez Lopez, Manuel; Curiel, S.; Frau, P.; Galvan Madrid, R.; Rao, R.; Busquet, G.; Juárez, C.
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present subarcsecond angular resolution observations carried out with the Submillimeter Array (SMA) at 880 μm centered at the B0-type protostar GGD27 MM1, the driving source of the parsec scale HH 80-81 jet. We constrain its polarized continuum emission to ≲0.8% at this wavelength. Its submillimeter spectrum is dominated by sulfur-bearing species tracing a rotating-disk-like structure (SO and SO2 isotopologues mainly), but also shows HCN-bearing and CH3OH lines, which trace the disk and the outflow cavity walls excavated by the HH 80-81 jet. The presence of many sulfurated lines could indicate the presence of shocked gas at the disk's centrifugal barrier or that MM1 is a hot core at an evolved stage. The resolved SO2 emission traces the disk kinematics very well and we fit the SMA observations using a thin-disk Keplerian model, which gives the inclination (47°), the inner (≲170 au) and outer (∼950-1300 au) radii, and the disk's rotation velocity (3.4 km s-1 at a putative radius of 1700 au). We roughly estimate a protostellar dynamical mass of 4-18 . MM2 and WMC cores show, comparatively, an almost empty spectra, suggesting that they are associated with extended emission detected in previous low-angular resolution observations, and therefore indicating youth (MM2) or the presence of a less massive object (WMC).
Fil: Girart, J. M.. Consejo Superior de Investigaciones Científicas; España
Fil: Estalella, R.. Universidad de Barcelona; España
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: Curiel, S.. Universidad Nacional Autónoma de México; México
Fil: Frau, P.. Consejo Superior de Investigaciones Científicas; España
Fil: Galvan Madrid, R.. Universidad Nacional Autónoma de México; México
Fil: Rao, R.. Academia Sinica; Estados Unidos
Fil: Busquet, G.. Consejo Superior de Investigaciones Científicas; España
Fil: Juárez, C.. Consejo Superior de Investigaciones Científicas; España
Materia
ISM: INDIVIDUAL OBJECTS (GGD27, HH 80-81, IRAS 18162-2048)
ISM: MOLECULES
STARS: FORMATION
SUBMILLIMETER: ISM
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:11336/56576
Acceder
id CONICETDig_7861130f6497e24ec5e3876d0a007f32
oai_identifier_str oai:ri.conicet.gov.ar:11336/56576
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The Circumestellar Disk of the B0 Protostar Powering the HH 80-81 Radio JetGirart, J. M.Estalella, R.Fernandez Lopez, ManuelCuriel, S.Frau, P.Galvan Madrid, R.Rao, R.Busquet, G.Juárez, C.ISM: INDIVIDUAL OBJECTS (GGD27, HH 80-81, IRAS 18162-2048)ISM: MOLECULESSTARS: FORMATIONSUBMILLIMETER: ISMhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present subarcsecond angular resolution observations carried out with the Submillimeter Array (SMA) at 880 μm centered at the B0-type protostar GGD27 MM1, the driving source of the parsec scale HH 80-81 jet. We constrain its polarized continuum emission to ≲0.8% at this wavelength. Its submillimeter spectrum is dominated by sulfur-bearing species tracing a rotating-disk-like structure (SO and SO2 isotopologues mainly), but also shows HCN-bearing and CH3OH lines, which trace the disk and the outflow cavity walls excavated by the HH 80-81 jet. The presence of many sulfurated lines could indicate the presence of shocked gas at the disk's centrifugal barrier or that MM1 is a hot core at an evolved stage. The resolved SO2 emission traces the disk kinematics very well and we fit the SMA observations using a thin-disk Keplerian model, which gives the inclination (47°), the inner (≲170 au) and outer (∼950-1300 au) radii, and the disk's rotation velocity (3.4 km s-1 at a putative radius of 1700 au). We roughly estimate a protostellar dynamical mass of 4-18 . MM2 and WMC cores show, comparatively, an almost empty spectra, suggesting that they are associated with extended emission detected in previous low-angular resolution observations, and therefore indicating youth (MM2) or the presence of a less massive object (WMC).Fil: Girart, J. M.. Consejo Superior de Investigaciones Científicas; EspañaFil: Estalella, R.. Universidad de Barcelona; EspañaFil: 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: Curiel, S.. Universidad Nacional Autónoma de México; MéxicoFil: Frau, P.. Consejo Superior de Investigaciones Científicas; EspañaFil: Galvan Madrid, R.. Universidad Nacional Autónoma de México; MéxicoFil: Rao, R.. Academia Sinica; Estados UnidosFil: Busquet, G.. Consejo Superior de Investigaciones Científicas; EspañaFil: Juárez, C.. Consejo Superior de Investigaciones Científicas; EspañaIOP Publishing2017-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/56576Girart, J. M.; Estalella, R.; Fernandez Lopez, Manuel; Curiel, S.; Frau, P.; et al.; The Circumestellar Disk of the B0 Protostar Powering the HH 80-81 Radio Jet; IOP Publishing; Astrophysical Journal; 847; 1; 9-2017; 1-110004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/aa81c9info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.3847/1538-4357/aa81c9/metainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:21:15Zoai:ri.conicet.gov.ar:11336/56576instacron: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:34982025-09-10 13:21:15.509CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The Circumestellar Disk of the B0 Protostar Powering the HH 80-81 Radio Jet
title The Circumestellar Disk of the B0 Protostar Powering the HH 80-81 Radio Jet
spellingShingle The Circumestellar Disk of the B0 Protostar Powering the HH 80-81 Radio Jet
Girart, J. M.
ISM: INDIVIDUAL OBJECTS (GGD27, HH 80-81, IRAS 18162-2048)
ISM: MOLECULES
STARS: FORMATION
SUBMILLIMETER: ISM
title_short The Circumestellar Disk of the B0 Protostar Powering the HH 80-81 Radio Jet
title_full The Circumestellar Disk of the B0 Protostar Powering the HH 80-81 Radio Jet
title_fullStr The Circumestellar Disk of the B0 Protostar Powering the HH 80-81 Radio Jet
title_full_unstemmed The Circumestellar Disk of the B0 Protostar Powering the HH 80-81 Radio Jet
title_sort The Circumestellar Disk of the B0 Protostar Powering the HH 80-81 Radio Jet
dc.creator.none.fl_str_mv Girart, J. M.
Estalella, R.
Fernandez Lopez, Manuel
Curiel, S.
Frau, P.
Galvan Madrid, R.
Rao, R.
Busquet, G.
Juárez, C.
author Girart, J. M.
author_facet Girart, J. M.
Estalella, R.
Fernandez Lopez, Manuel
Curiel, S.
Frau, P.
Galvan Madrid, R.
Rao, R.
Busquet, G.
Juárez, C.
author_role author
author2 Estalella, R.
Fernandez Lopez, Manuel
Curiel, S.
Frau, P.
Galvan Madrid, R.
Rao, R.
Busquet, G.
Juárez, C.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv ISM: INDIVIDUAL OBJECTS (GGD27, HH 80-81, IRAS 18162-2048)
ISM: MOLECULES
STARS: FORMATION
SUBMILLIMETER: ISM
topic ISM: INDIVIDUAL OBJECTS (GGD27, HH 80-81, IRAS 18162-2048)
ISM: MOLECULES
STARS: FORMATION
SUBMILLIMETER: ISM
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 subarcsecond angular resolution observations carried out with the Submillimeter Array (SMA) at 880 μm centered at the B0-type protostar GGD27 MM1, the driving source of the parsec scale HH 80-81 jet. We constrain its polarized continuum emission to ≲0.8% at this wavelength. Its submillimeter spectrum is dominated by sulfur-bearing species tracing a rotating-disk-like structure (SO and SO2 isotopologues mainly), but also shows HCN-bearing and CH3OH lines, which trace the disk and the outflow cavity walls excavated by the HH 80-81 jet. The presence of many sulfurated lines could indicate the presence of shocked gas at the disk's centrifugal barrier or that MM1 is a hot core at an evolved stage. The resolved SO2 emission traces the disk kinematics very well and we fit the SMA observations using a thin-disk Keplerian model, which gives the inclination (47°), the inner (≲170 au) and outer (∼950-1300 au) radii, and the disk's rotation velocity (3.4 km s-1 at a putative radius of 1700 au). We roughly estimate a protostellar dynamical mass of 4-18 . MM2 and WMC cores show, comparatively, an almost empty spectra, suggesting that they are associated with extended emission detected in previous low-angular resolution observations, and therefore indicating youth (MM2) or the presence of a less massive object (WMC).
Fil: Girart, J. M.. Consejo Superior de Investigaciones Científicas; España
Fil: Estalella, R.. Universidad de Barcelona; España
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: Curiel, S.. Universidad Nacional Autónoma de México; México
Fil: Frau, P.. Consejo Superior de Investigaciones Científicas; España
Fil: Galvan Madrid, R.. Universidad Nacional Autónoma de México; México
Fil: Rao, R.. Academia Sinica; Estados Unidos
Fil: Busquet, G.. Consejo Superior de Investigaciones Científicas; España
Fil: Juárez, C.. Consejo Superior de Investigaciones Científicas; España
description We present subarcsecond angular resolution observations carried out with the Submillimeter Array (SMA) at 880 μm centered at the B0-type protostar GGD27 MM1, the driving source of the parsec scale HH 80-81 jet. We constrain its polarized continuum emission to ≲0.8% at this wavelength. Its submillimeter spectrum is dominated by sulfur-bearing species tracing a rotating-disk-like structure (SO and SO2 isotopologues mainly), but also shows HCN-bearing and CH3OH lines, which trace the disk and the outflow cavity walls excavated by the HH 80-81 jet. The presence of many sulfurated lines could indicate the presence of shocked gas at the disk's centrifugal barrier or that MM1 is a hot core at an evolved stage. The resolved SO2 emission traces the disk kinematics very well and we fit the SMA observations using a thin-disk Keplerian model, which gives the inclination (47°), the inner (≲170 au) and outer (∼950-1300 au) radii, and the disk's rotation velocity (3.4 km s-1 at a putative radius of 1700 au). We roughly estimate a protostellar dynamical mass of 4-18 . MM2 and WMC cores show, comparatively, an almost empty spectra, suggesting that they are associated with extended emission detected in previous low-angular resolution observations, and therefore indicating youth (MM2) or the presence of a less massive object (WMC).
publishDate 2017
dc.date.none.fl_str_mv 2017-09
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/11336/56576
Girart, J. M.; Estalella, R.; Fernandez Lopez, Manuel; Curiel, S.; Frau, P.; et al.; The Circumestellar Disk of the B0 Protostar Powering the HH 80-81 Radio Jet; IOP Publishing; Astrophysical Journal; 847; 1; 9-2017; 1-11
0004-637X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/56576
identifier_str_mv Girart, J. M.; Estalella, R.; Fernandez Lopez, Manuel; Curiel, S.; Frau, P.; et al.; The Circumestellar Disk of the B0 Protostar Powering the HH 80-81 Radio Jet; IOP Publishing; Astrophysical Journal; 847; 1; 9-2017; 1-11
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/doi/10.3847/1538-4357/aa81c9
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.3847/1538-4357/aa81c9/meta
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_ 1842981165817921536
score 12.48226

Publicaciones similares