Revisiting G29.862–0.0044: A jet cavity disrupted by an outflow in a likely young stellar object wide binary system

Autores
Paron, Sergio Ariel; Martinez, Naila Constanza; Ortega, Martin Eduardo; Mast, Damian; Petriella, Alberto; Supán, Jorge Leonardo; Fariña, C.
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Aims. A few years ago, we investigated the massive young stellar object (MYSO) G29.862–0.0044 (YSO-G29), an intriguing star-forming region at a distance of 6.2 kpc. Although the typical disc-jet scenario was proposed to explain the observations, it remained far from conclusive. We wonder if the puzzling observed near-IR features are produced by only one source or if it is due to confusion generated by an unresolved system of YSOs. Unveiling this issue is important for a better understanding of the star-forming processes. Methods. We analysed YSO-G29 using new observations in the near-IR from Gemini-NIFS, at the radio continuum (10 GHz) from the Jansky Very Large Array (JVLA) and new continuum (1.3 mm) and molecular line data from the Atacama Large Millimeter Array (ALMA). Results. The near-IR observations allowed us to detect emission of H2 1‑0 S(1) and Brγ lines in YSO-G29, which are compatible with excitation and ionisation from UV radiation propagating in a highly perturbed ambient. In addition, we also found some evidence of H2 excitation by collisions. The ALMA data show the presence of a conspicuous and collimated molecular outflow propagating southwards, while to the north, an extended molecular feature perfectly surrounded by the Ks near-IR emission appears. The continuum emission at 1.3 mm allowed us to better resolve the molecular cores, one of which stands out due to its high temperatures and rich chemical composition. From the JVLA observations, we discovered a compact radio continuum source, a likely compact HII region or an ionised jet of a massive protostar, located at ~0.″7 (~0.02 pc) from the main millimetre core. In this way, we propose a YSO wide binary system. Conclusions. We can explain the nature of the intriguing near-IR features previously observed: Cone-like structures produced by jets or winds of one of the components of the binary system that cleared out the surroundings were disrupted by a molecular outflow probably from the other component. These results complete the picture of what is happening in YSO-G29 and reveal a phenomenon that should be considered when investigating massive star-forming regions.
Fil: Paron, Sergio Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Martinez, Naila Constanza. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Ortega, Martin Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Mast, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Petriella, Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Supán, Jorge Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Fariña, C.. Isaac Newton Group of Telescopes; España. Universidad de La Laguna; España
Materia
STARS: FORMATION
STARS: PROTOSTARS
ISM: JETS AND OUTFLOWS
ISM: MOLECULES
ASTROPHYSICS OF GALAXIES
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:11336/274720
Acceder
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spelling Revisiting G29.862–0.0044: A jet cavity disrupted by an outflow in a likely young stellar object wide binary systemParon, Sergio ArielMartinez, Naila ConstanzaOrtega, Martin EduardoMast, DamianPetriella, AlbertoSupán, Jorge LeonardoFariña, C.STARS: FORMATIONSTARS: PROTOSTARSISM: JETS AND OUTFLOWSISM: MOLECULESASTROPHYSICS OF GALAXIEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Aims. A few years ago, we investigated the massive young stellar object (MYSO) G29.862–0.0044 (YSO-G29), an intriguing star-forming region at a distance of 6.2 kpc. Although the typical disc-jet scenario was proposed to explain the observations, it remained far from conclusive. We wonder if the puzzling observed near-IR features are produced by only one source or if it is due to confusion generated by an unresolved system of YSOs. Unveiling this issue is important for a better understanding of the star-forming processes. Methods. We analysed YSO-G29 using new observations in the near-IR from Gemini-NIFS, at the radio continuum (10 GHz) from the Jansky Very Large Array (JVLA) and new continuum (1.3 mm) and molecular line data from the Atacama Large Millimeter Array (ALMA). Results. The near-IR observations allowed us to detect emission of H2 1‑0 S(1) and Brγ lines in YSO-G29, which are compatible with excitation and ionisation from UV radiation propagating in a highly perturbed ambient. In addition, we also found some evidence of H2 excitation by collisions. The ALMA data show the presence of a conspicuous and collimated molecular outflow propagating southwards, while to the north, an extended molecular feature perfectly surrounded by the Ks near-IR emission appears. The continuum emission at 1.3 mm allowed us to better resolve the molecular cores, one of which stands out due to its high temperatures and rich chemical composition. From the JVLA observations, we discovered a compact radio continuum source, a likely compact HII region or an ionised jet of a massive protostar, located at ~0.″7 (~0.02 pc) from the main millimetre core. In this way, we propose a YSO wide binary system. Conclusions. We can explain the nature of the intriguing near-IR features previously observed: Cone-like structures produced by jets or winds of one of the components of the binary system that cleared out the surroundings were disrupted by a molecular outflow probably from the other component. These results complete the picture of what is happening in YSO-G29 and reveal a phenomenon that should be considered when investigating massive star-forming regions.Fil: Paron, Sergio Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Martinez, Naila Constanza. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaFil: Ortega, Martin Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Mast, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaFil: Petriella, Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Supán, Jorge Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Fariña, C.. Isaac Newton Group of Telescopes; España. Universidad de La Laguna; EspañaEDP Sciences2025-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/274720Paron, Sergio Ariel; Martinez, Naila Constanza; Ortega, Martin Eduardo; Mast, Damian; Petriella, Alberto; et al.; Revisiting G29.862–0.0044: A jet cavity disrupted by an outflow in a likely young stellar object wide binary system; EDP Sciences; Astronomy and Astrophysics; 702; 10-2025; 1-190004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/202555716info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202555716info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:50:22Zoai:ri.conicet.gov.ar:11336/274720instacron: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:34982025-11-12 09:50:22.812CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Revisiting G29.862–0.0044: A jet cavity disrupted by an outflow in a likely young stellar object wide binary system
title Revisiting G29.862–0.0044: A jet cavity disrupted by an outflow in a likely young stellar object wide binary system
spellingShingle Revisiting G29.862–0.0044: A jet cavity disrupted by an outflow in a likely young stellar object wide binary system
Paron, Sergio Ariel
STARS: FORMATION
STARS: PROTOSTARS
ISM: JETS AND OUTFLOWS
ISM: MOLECULES
ASTROPHYSICS OF GALAXIES
title_short Revisiting G29.862–0.0044: A jet cavity disrupted by an outflow in a likely young stellar object wide binary system
title_full Revisiting G29.862–0.0044: A jet cavity disrupted by an outflow in a likely young stellar object wide binary system
title_fullStr Revisiting G29.862–0.0044: A jet cavity disrupted by an outflow in a likely young stellar object wide binary system
title_full_unstemmed Revisiting G29.862–0.0044: A jet cavity disrupted by an outflow in a likely young stellar object wide binary system
title_sort Revisiting G29.862–0.0044: A jet cavity disrupted by an outflow in a likely young stellar object wide binary system
dc.creator.none.fl_str_mv Paron, Sergio Ariel
Martinez, Naila Constanza
Ortega, Martin Eduardo
Mast, Damian
Petriella, Alberto
Supán, Jorge Leonardo
Fariña, C.
author Paron, Sergio Ariel
author_facet Paron, Sergio Ariel
Martinez, Naila Constanza
Ortega, Martin Eduardo
Mast, Damian
Petriella, Alberto
Supán, Jorge Leonardo
Fariña, C.
author_role author
author2 Martinez, Naila Constanza
Ortega, Martin Eduardo
Mast, Damian
Petriella, Alberto
Supán, Jorge Leonardo
Fariña, C.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv STARS: FORMATION
STARS: PROTOSTARS
ISM: JETS AND OUTFLOWS
ISM: MOLECULES
ASTROPHYSICS OF GALAXIES
topic STARS: FORMATION
STARS: PROTOSTARS
ISM: JETS AND OUTFLOWS
ISM: MOLECULES
ASTROPHYSICS OF GALAXIES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Aims. A few years ago, we investigated the massive young stellar object (MYSO) G29.862–0.0044 (YSO-G29), an intriguing star-forming region at a distance of 6.2 kpc. Although the typical disc-jet scenario was proposed to explain the observations, it remained far from conclusive. We wonder if the puzzling observed near-IR features are produced by only one source or if it is due to confusion generated by an unresolved system of YSOs. Unveiling this issue is important for a better understanding of the star-forming processes. Methods. We analysed YSO-G29 using new observations in the near-IR from Gemini-NIFS, at the radio continuum (10 GHz) from the Jansky Very Large Array (JVLA) and new continuum (1.3 mm) and molecular line data from the Atacama Large Millimeter Array (ALMA). Results. The near-IR observations allowed us to detect emission of H2 1‑0 S(1) and Brγ lines in YSO-G29, which are compatible with excitation and ionisation from UV radiation propagating in a highly perturbed ambient. In addition, we also found some evidence of H2 excitation by collisions. The ALMA data show the presence of a conspicuous and collimated molecular outflow propagating southwards, while to the north, an extended molecular feature perfectly surrounded by the Ks near-IR emission appears. The continuum emission at 1.3 mm allowed us to better resolve the molecular cores, one of which stands out due to its high temperatures and rich chemical composition. From the JVLA observations, we discovered a compact radio continuum source, a likely compact HII region or an ionised jet of a massive protostar, located at ~0.″7 (~0.02 pc) from the main millimetre core. In this way, we propose a YSO wide binary system. Conclusions. We can explain the nature of the intriguing near-IR features previously observed: Cone-like structures produced by jets or winds of one of the components of the binary system that cleared out the surroundings were disrupted by a molecular outflow probably from the other component. These results complete the picture of what is happening in YSO-G29 and reveal a phenomenon that should be considered when investigating massive star-forming regions.
Fil: Paron, Sergio Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Martinez, Naila Constanza. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Ortega, Martin Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Mast, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Petriella, Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Supán, Jorge Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Fariña, C.. Isaac Newton Group of Telescopes; España. Universidad de La Laguna; España
description Aims. A few years ago, we investigated the massive young stellar object (MYSO) G29.862–0.0044 (YSO-G29), an intriguing star-forming region at a distance of 6.2 kpc. Although the typical disc-jet scenario was proposed to explain the observations, it remained far from conclusive. We wonder if the puzzling observed near-IR features are produced by only one source or if it is due to confusion generated by an unresolved system of YSOs. Unveiling this issue is important for a better understanding of the star-forming processes. Methods. We analysed YSO-G29 using new observations in the near-IR from Gemini-NIFS, at the radio continuum (10 GHz) from the Jansky Very Large Array (JVLA) and new continuum (1.3 mm) and molecular line data from the Atacama Large Millimeter Array (ALMA). Results. The near-IR observations allowed us to detect emission of H2 1‑0 S(1) and Brγ lines in YSO-G29, which are compatible with excitation and ionisation from UV radiation propagating in a highly perturbed ambient. In addition, we also found some evidence of H2 excitation by collisions. The ALMA data show the presence of a conspicuous and collimated molecular outflow propagating southwards, while to the north, an extended molecular feature perfectly surrounded by the Ks near-IR emission appears. The continuum emission at 1.3 mm allowed us to better resolve the molecular cores, one of which stands out due to its high temperatures and rich chemical composition. From the JVLA observations, we discovered a compact radio continuum source, a likely compact HII region or an ionised jet of a massive protostar, located at ~0.″7 (~0.02 pc) from the main millimetre core. In this way, we propose a YSO wide binary system. Conclusions. We can explain the nature of the intriguing near-IR features previously observed: Cone-like structures produced by jets or winds of one of the components of the binary system that cleared out the surroundings were disrupted by a molecular outflow probably from the other component. These results complete the picture of what is happening in YSO-G29 and reveal a phenomenon that should be considered when investigating massive star-forming regions.
publishDate 2025
dc.date.none.fl_str_mv 2025-10
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/11336/274720
Paron, Sergio Ariel; Martinez, Naila Constanza; Ortega, Martin Eduardo; Mast, Damian; Petriella, Alberto; et al.; Revisiting G29.862–0.0044: A jet cavity disrupted by an outflow in a likely young stellar object wide binary system; EDP Sciences; Astronomy and Astrophysics; 702; 10-2025; 1-19
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/274720
identifier_str_mv Paron, Sergio Ariel; Martinez, Naila Constanza; Ortega, Martin Eduardo; Mast, Damian; Petriella, Alberto; et al.; Revisiting G29.862–0.0044: A jet cavity disrupted by an outflow in a likely young stellar object wide binary system; EDP Sciences; Astronomy and Astrophysics; 702; 10-2025; 1-19
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202555716
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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
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dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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