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
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/217759
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/217759
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling 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 Técnicas2025-10-22T11:41:09Zoai: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:34982025-10-22 11:41:09.976CONICET 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/
dc.format.none.fl_str_mv 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
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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