Confirmation of the proto-brown dwarf SSTB213-J041757B and discovery of a nearby new candidate with ALMA and CARMA
- Autores
- Palau, Aina; Duran Garcia, Mariano; Fernandez Lopez, Manuel; Zapata, Luis Oscar; Morata, Oscar; de Gregorio Monsalvo, Itziar; Barrado, David; Huélamo, Nuria; Bayo, Amelia; Ruiz, Maria T.; Bouy, Hervé; Ribas, Álvaro; Morales Calderón, María; Rodríguez, Luis F.
- Año de publicación
- 2022
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- How Brown Dwarfs (BDs) form is still an unresolved question. In order to shed light into the different possible mechanisms for BD formation, it is essential to identify bona-fide BDs in their earliest evolutionary stages, the so-called proto-BDs, equivalent to objects in the Class 0 and Class I stages of young stellar objects. We conducted CARMA observations at 3 and 1 mm and several transitions, along with ALMA observations at 1 mm and CO(2-1) towards a debated proto-BD candidate in the Taurus molecular cloud. Both ALMA and CARMA observations reveal signs of outflow emission driven by the proto-BD candidate. In addition, CARMA allowed to discover a new proto-BD candidate about 50 arcsec to the northeast, that also seems to drive a molecular outflow. A comparison of the outflow momentum rate of these two proto-BD candidates with those of well-known young stellar objects indicates that this parameter falls at the expected relation according to their lower luminosity. Overall, these observations allow to add two proto-BDs in the short list of proto-BDs known to date, and suggest that BDs seem to form as a scaled-down version of low-mass stars. Funded by the UNAM-PAPIIT IN111421 grant.
Fil: Palau, Aina. Instituto de Radioastronomía y Astrofísica; México
Fil: Duran Garcia, Mariano. Instituto de Radioastronomía y Astrofísica; 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: Zapata, Luis Oscar. Instituto de Radioastronomía y Astrofísica; México
Fil: Morata, Oscar. Universidad de Barcelona; España
Fil: de Gregorio Monsalvo, Itziar. European Southern Observatory Chile.; Chile
Fil: Barrado, David. No especifíca;
Fil: Huélamo, Nuria. No especifíca;
Fil: Bayo, Amelia. No especifíca;
Fil: Ruiz, Maria T.. No especifíca;
Fil: Bouy, Hervé. No especifíca;
Fil: Ribas, Álvaro. No especifíca;
Fil: Morales Calderón, María. No especifíca;
Fil: Rodríguez, Luis F.. No especifíca;
Cool Stars 21
Toulouse
Francia
Universite Toulouse - Materia
-
brown dwarfs
substellar objects
radio astronomy - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/217759
Ver los metadatos del registro completo
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Confirmation of the proto-brown dwarf SSTB213-J041757B and discovery of a nearby new candidate with ALMA and CARMAPalau, AinaDuran Garcia, MarianoFernandez Lopez, ManuelZapata, Luis OscarMorata, Oscarde Gregorio Monsalvo, ItziarBarrado, DavidHuélamo, NuriaBayo, AmeliaRuiz, Maria T.Bouy, HervéRibas, ÁlvaroMorales Calderón, MaríaRodríguez, Luis F.brown dwarfssubstellar objectsradio astronomyhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1How Brown Dwarfs (BDs) form is still an unresolved question. In order to shed light into the different possible mechanisms for BD formation, it is essential to identify bona-fide BDs in their earliest evolutionary stages, the so-called proto-BDs, equivalent to objects in the Class 0 and Class I stages of young stellar objects. We conducted CARMA observations at 3 and 1 mm and several transitions, along with ALMA observations at 1 mm and CO(2-1) towards a debated proto-BD candidate in the Taurus molecular cloud. Both ALMA and CARMA observations reveal signs of outflow emission driven by the proto-BD candidate. In addition, CARMA allowed to discover a new proto-BD candidate about 50 arcsec to the northeast, that also seems to drive a molecular outflow. A comparison of the outflow momentum rate of these two proto-BD candidates with those of well-known young stellar objects indicates that this parameter falls at the expected relation according to their lower luminosity. Overall, these observations allow to add two proto-BDs in the short list of proto-BDs known to date, and suggest that BDs seem to form as a scaled-down version of low-mass stars. Funded by the UNAM-PAPIIT IN111421 grant.Fil: Palau, Aina. Instituto de Radioastronomía y Astrofísica; MéxicoFil: Duran Garcia, Mariano. Instituto de Radioastronomía y Astrofísica; 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: Zapata, Luis Oscar. Instituto de Radioastronomía y Astrofísica; MéxicoFil: Morata, Oscar. Universidad de Barcelona; EspañaFil: de Gregorio Monsalvo, Itziar. European Southern Observatory Chile.; ChileFil: Barrado, David. No especifíca;Fil: Huélamo, Nuria. No especifíca;Fil: Bayo, Amelia. No especifíca;Fil: Ruiz, Maria T.. No especifíca;Fil: Bouy, Hervé. No especifíca;Fil: Ribas, Álvaro. No especifíca;Fil: Morales Calderón, María. No especifíca;Fil: Rodríguez, Luis F.. No especifíca;Cool Stars 21ToulouseFranciaUniversite ToulouseCool Stars2022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectWorkshopJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/217759Confirmation of the proto-brown dwarf SSTB213-J041757B and discovery of a nearby new candidate with ALMA and CARMA; Cool Stars 21; Toulouse; Francia; 2022; 1-1CONICET DigitalCONICETenghttps://coolstars21.github.io/info:eu-repo/semantics/altIdentifier/url/https://zenodo.org/record/7593206info:eu-repo/semantics/altIdentifier/url/https://coolstars21.github.io/docs/CS21booklet.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:11:11Zoai:ri.conicet.gov.ar:11336/217759instacron: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 10:11:12.183CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Confirmation of the proto-brown dwarf SSTB213-J041757B and discovery of a nearby new candidate with ALMA and CARMA |
title |
Confirmation of the proto-brown dwarf SSTB213-J041757B and discovery of a nearby new candidate with ALMA and CARMA |
spellingShingle |
Confirmation of the proto-brown dwarf SSTB213-J041757B and discovery of a nearby new candidate with ALMA and CARMA Palau, Aina brown dwarfs substellar objects radio astronomy |
title_short |
Confirmation of the proto-brown dwarf SSTB213-J041757B and discovery of a nearby new candidate with ALMA and CARMA |
title_full |
Confirmation of the proto-brown dwarf SSTB213-J041757B and discovery of a nearby new candidate with ALMA and CARMA |
title_fullStr |
Confirmation of the proto-brown dwarf SSTB213-J041757B and discovery of a nearby new candidate with ALMA and CARMA |
title_full_unstemmed |
Confirmation of the proto-brown dwarf SSTB213-J041757B and discovery of a nearby new candidate with ALMA and CARMA |
title_sort |
Confirmation of the proto-brown dwarf SSTB213-J041757B and discovery of a nearby new candidate with ALMA and CARMA |
dc.creator.none.fl_str_mv |
Palau, Aina Duran Garcia, Mariano Fernandez Lopez, Manuel Zapata, Luis Oscar Morata, Oscar de Gregorio Monsalvo, Itziar Barrado, David Huélamo, Nuria Bayo, Amelia Ruiz, Maria T. Bouy, Hervé Ribas, Álvaro Morales Calderón, María Rodríguez, Luis F. |
author |
Palau, Aina |
author_facet |
Palau, Aina Duran Garcia, Mariano Fernandez Lopez, Manuel Zapata, Luis Oscar Morata, Oscar de Gregorio Monsalvo, Itziar Barrado, David Huélamo, Nuria Bayo, Amelia Ruiz, Maria T. Bouy, Hervé Ribas, Álvaro Morales Calderón, María Rodríguez, Luis F. |
author_role |
author |
author2 |
Duran Garcia, Mariano Fernandez Lopez, Manuel Zapata, Luis Oscar Morata, Oscar de Gregorio Monsalvo, Itziar Barrado, David Huélamo, Nuria Bayo, Amelia Ruiz, Maria T. Bouy, Hervé Ribas, Álvaro Morales Calderón, María Rodríguez, Luis F. |
author2_role |
author author author author author author author author author author author author author |
dc.subject.none.fl_str_mv |
brown dwarfs substellar objects radio astronomy |
topic |
brown dwarfs substellar objects radio astronomy |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
How Brown Dwarfs (BDs) form is still an unresolved question. In order to shed light into the different possible mechanisms for BD formation, it is essential to identify bona-fide BDs in their earliest evolutionary stages, the so-called proto-BDs, equivalent to objects in the Class 0 and Class I stages of young stellar objects. We conducted CARMA observations at 3 and 1 mm and several transitions, along with ALMA observations at 1 mm and CO(2-1) towards a debated proto-BD candidate in the Taurus molecular cloud. Both ALMA and CARMA observations reveal signs of outflow emission driven by the proto-BD candidate. In addition, CARMA allowed to discover a new proto-BD candidate about 50 arcsec to the northeast, that also seems to drive a molecular outflow. A comparison of the outflow momentum rate of these two proto-BD candidates with those of well-known young stellar objects indicates that this parameter falls at the expected relation according to their lower luminosity. Overall, these observations allow to add two proto-BDs in the short list of proto-BDs known to date, and suggest that BDs seem to form as a scaled-down version of low-mass stars. Funded by the UNAM-PAPIIT IN111421 grant. Fil: Palau, Aina. Instituto de Radioastronomía y Astrofísica; México Fil: Duran Garcia, Mariano. Instituto de Radioastronomía y Astrofísica; 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: Zapata, Luis Oscar. Instituto de Radioastronomía y Astrofísica; México Fil: Morata, Oscar. Universidad de Barcelona; España Fil: de Gregorio Monsalvo, Itziar. European Southern Observatory Chile.; Chile Fil: Barrado, David. No especifíca; Fil: Huélamo, Nuria. No especifíca; Fil: Bayo, Amelia. No especifíca; Fil: Ruiz, Maria T.. No especifíca; Fil: Bouy, Hervé. No especifíca; Fil: Ribas, Álvaro. No especifíca; Fil: Morales Calderón, María. No especifíca; Fil: Rodríguez, Luis F.. No especifíca; Cool Stars 21 Toulouse Francia Universite Toulouse |
description |
How Brown Dwarfs (BDs) form is still an unresolved question. In order to shed light into the different possible mechanisms for BD formation, it is essential to identify bona-fide BDs in their earliest evolutionary stages, the so-called proto-BDs, equivalent to objects in the Class 0 and Class I stages of young stellar objects. We conducted CARMA observations at 3 and 1 mm and several transitions, along with ALMA observations at 1 mm and CO(2-1) towards a debated proto-BD candidate in the Taurus molecular cloud. Both ALMA and CARMA observations reveal signs of outflow emission driven by the proto-BD candidate. In addition, CARMA allowed to discover a new proto-BD candidate about 50 arcsec to the northeast, that also seems to drive a molecular outflow. A comparison of the outflow momentum rate of these two proto-BD candidates with those of well-known young stellar objects indicates that this parameter falls at the expected relation according to their lower luminosity. Overall, these observations allow to add two proto-BDs in the short list of proto-BDs known to date, and suggest that BDs seem to form as a scaled-down version of low-mass stars. Funded by the UNAM-PAPIIT IN111421 grant. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject Workshop Journal http://purl.org/coar/resource_type/c_5794 info:ar-repo/semantics/documentoDeConferencia |
status_str |
publishedVersion |
format |
conferenceObject |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/217759 Confirmation of the proto-brown dwarf SSTB213-J041757B and discovery of a nearby new candidate with ALMA and CARMA; Cool Stars 21; Toulouse; Francia; 2022; 1-1 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/217759 |
identifier_str_mv |
Confirmation of the proto-brown dwarf SSTB213-J041757B and discovery of a nearby new candidate with ALMA and CARMA; Cool Stars 21; Toulouse; Francia; 2022; 1-1 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://coolstars21.github.io/ info:eu-repo/semantics/altIdentifier/url/https://zenodo.org/record/7593206 info:eu-repo/semantics/altIdentifier/url/https://coolstars21.github.io/docs/CS21booklet.pdf |
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/ |
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application/pdf application/pdf |
dc.coverage.none.fl_str_mv |
Internacional |
dc.publisher.none.fl_str_mv |
Cool Stars |
publisher.none.fl_str_mv |
Cool Stars |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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