GS 121-05-037: a new Galactic chimney candidate with signs of triggered star formation

Autores
Suad, Laura Andrea; Molina Lera, José Alejo; Cichowolski, Silvina
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Aims. The goal of this study is to analyze the H i supershell GS 121- 05- 037 and its role in triggering star formation. Methods. To characterize the supershell, we analyzed the H i 21-cm line and the far-infrared emission distributions. In addition, to study the star formation processes related to GS 121-05-037, we used the Gaia survey, together with spectrophotometric calculations, and derived a method to look for massive OB- type stars. Results. The H i characterization of GS 121- 05- 037 shows an expanding structure centered at (l, b) ∼ (121.3, - 4.8) in the velocity range from - 47.8 to - 25.2km s- 1. It is located at 3.2 ± 1.0 kpc from the Sun and has a kinetic energy of Ek = (2.1 ± 1.3) × 1050 erg. GS 121 - 05- 037 presents, in the H i emission distribution, an open morphology toward the Galactic halo. The analysis of the IR emission reveals the presence of 32 Hii regions seen projected into the borders of GS 121- 05- 037. A spectrophotometric analysis to look for the ionizing stars of these regions reveals that 12 of them would be located at a similar distance to GS 121- 05- 037. Conclusions. The relative location between GS 121- 05- 037 and the Hii regions, together with their age difference, led us to conclude that the ionizing stars could have been created due to the expansion of the H i supershell. On the other hand, the Hii regions located on the interface of two or more supershells could have originated from the collision of the H i structures. Finally, the open morphology of GS 121 - 05- 037 toward the halo suggests that this large structure could be a Galactic chimney.
Fil: Suad, Laura Andrea. 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: Molina Lera, José Alejo. 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: Cichowolski, Silvina. 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
Materia
HII REGIONS
ISM: BUBBLES
ISM: KINEMATICS AND DYNAMICS
STARS: FORMATION
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:11336/217298
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/217298
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling GS 121-05-037: a new Galactic chimney candidate with signs of triggered star formationSuad, Laura AndreaMolina Lera, José AlejoCichowolski, SilvinaHII REGIONSISM: BUBBLESISM: KINEMATICS AND DYNAMICSSTARS: FORMATIONhttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1Aims. The goal of this study is to analyze the H i supershell GS 121- 05- 037 and its role in triggering star formation. Methods. To characterize the supershell, we analyzed the H i 21-cm line and the far-infrared emission distributions. In addition, to study the star formation processes related to GS 121-05-037, we used the Gaia survey, together with spectrophotometric calculations, and derived a method to look for massive OB- type stars. Results. The H i characterization of GS 121- 05- 037 shows an expanding structure centered at (l, b) ∼ (121.3, - 4.8) in the velocity range from - 47.8 to - 25.2km s- 1. It is located at 3.2 ± 1.0 kpc from the Sun and has a kinetic energy of Ek = (2.1 ± 1.3) × 1050 erg. GS 121 - 05- 037 presents, in the H i emission distribution, an open morphology toward the Galactic halo. The analysis of the IR emission reveals the presence of 32 Hii regions seen projected into the borders of GS 121- 05- 037. A spectrophotometric analysis to look for the ionizing stars of these regions reveals that 12 of them would be located at a similar distance to GS 121- 05- 037. Conclusions. The relative location between GS 121- 05- 037 and the Hii regions, together with their age difference, led us to conclude that the ionizing stars could have been created due to the expansion of the H i supershell. On the other hand, the Hii regions located on the interface of two or more supershells could have originated from the collision of the H i structures. Finally, the open morphology of GS 121 - 05- 037 toward the halo suggests that this large structure could be a Galactic chimney.Fil: Suad, Laura Andrea. 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: Molina Lera, José Alejo. 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: Cichowolski, Silvina. 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; ArgentinaEDP Sciences2022-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/217298Suad, Laura Andrea; Molina Lera, José Alejo; Cichowolski, Silvina; GS 121-05-037: a new Galactic chimney candidate with signs of triggered star formation; EDP Sciences; Astronomy and Astrophysics; 668; 9-2022; 1-150004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/202243942info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202243942info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:45:12Zoai:ri.conicet.gov.ar:11336/217298instacron: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 10:45:13.071CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv GS 121-05-037: a new Galactic chimney candidate with signs of triggered star formation
title GS 121-05-037: a new Galactic chimney candidate with signs of triggered star formation
spellingShingle GS 121-05-037: a new Galactic chimney candidate with signs of triggered star formation
Suad, Laura Andrea
HII REGIONS
ISM: BUBBLES
ISM: KINEMATICS AND DYNAMICS
STARS: FORMATION
title_short GS 121-05-037: a new Galactic chimney candidate with signs of triggered star formation
title_full GS 121-05-037: a new Galactic chimney candidate with signs of triggered star formation
title_fullStr GS 121-05-037: a new Galactic chimney candidate with signs of triggered star formation
title_full_unstemmed GS 121-05-037: a new Galactic chimney candidate with signs of triggered star formation
title_sort GS 121-05-037: a new Galactic chimney candidate with signs of triggered star formation
dc.creator.none.fl_str_mv Suad, Laura Andrea
Molina Lera, José Alejo
Cichowolski, Silvina
author Suad, Laura Andrea
author_facet Suad, Laura Andrea
Molina Lera, José Alejo
Cichowolski, Silvina
author_role author
author2 Molina Lera, José Alejo
Cichowolski, Silvina
author2_role author
author
dc.subject.none.fl_str_mv HII REGIONS
ISM: BUBBLES
ISM: KINEMATICS AND DYNAMICS
STARS: FORMATION
topic HII REGIONS
ISM: BUBBLES
ISM: KINEMATICS AND DYNAMICS
STARS: FORMATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Aims. The goal of this study is to analyze the H i supershell GS 121- 05- 037 and its role in triggering star formation. Methods. To characterize the supershell, we analyzed the H i 21-cm line and the far-infrared emission distributions. In addition, to study the star formation processes related to GS 121-05-037, we used the Gaia survey, together with spectrophotometric calculations, and derived a method to look for massive OB- type stars. Results. The H i characterization of GS 121- 05- 037 shows an expanding structure centered at (l, b) ∼ (121.3, - 4.8) in the velocity range from - 47.8 to - 25.2km s- 1. It is located at 3.2 ± 1.0 kpc from the Sun and has a kinetic energy of Ek = (2.1 ± 1.3) × 1050 erg. GS 121 - 05- 037 presents, in the H i emission distribution, an open morphology toward the Galactic halo. The analysis of the IR emission reveals the presence of 32 Hii regions seen projected into the borders of GS 121- 05- 037. A spectrophotometric analysis to look for the ionizing stars of these regions reveals that 12 of them would be located at a similar distance to GS 121- 05- 037. Conclusions. The relative location between GS 121- 05- 037 and the Hii regions, together with their age difference, led us to conclude that the ionizing stars could have been created due to the expansion of the H i supershell. On the other hand, the Hii regions located on the interface of two or more supershells could have originated from the collision of the H i structures. Finally, the open morphology of GS 121 - 05- 037 toward the halo suggests that this large structure could be a Galactic chimney.
Fil: Suad, Laura Andrea. 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: Molina Lera, José Alejo. 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: Cichowolski, Silvina. 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
description Aims. The goal of this study is to analyze the H i supershell GS 121- 05- 037 and its role in triggering star formation. Methods. To characterize the supershell, we analyzed the H i 21-cm line and the far-infrared emission distributions. In addition, to study the star formation processes related to GS 121-05-037, we used the Gaia survey, together with spectrophotometric calculations, and derived a method to look for massive OB- type stars. Results. The H i characterization of GS 121- 05- 037 shows an expanding structure centered at (l, b) ∼ (121.3, - 4.8) in the velocity range from - 47.8 to - 25.2km s- 1. It is located at 3.2 ± 1.0 kpc from the Sun and has a kinetic energy of Ek = (2.1 ± 1.3) × 1050 erg. GS 121 - 05- 037 presents, in the H i emission distribution, an open morphology toward the Galactic halo. The analysis of the IR emission reveals the presence of 32 Hii regions seen projected into the borders of GS 121- 05- 037. A spectrophotometric analysis to look for the ionizing stars of these regions reveals that 12 of them would be located at a similar distance to GS 121- 05- 037. Conclusions. The relative location between GS 121- 05- 037 and the Hii regions, together with their age difference, led us to conclude that the ionizing stars could have been created due to the expansion of the H i supershell. On the other hand, the Hii regions located on the interface of two or more supershells could have originated from the collision of the H i structures. Finally, the open morphology of GS 121 - 05- 037 toward the halo suggests that this large structure could be a Galactic chimney.
publishDate 2022
dc.date.none.fl_str_mv 2022-09
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/11336/217298
Suad, Laura Andrea; Molina Lera, José Alejo; Cichowolski, Silvina; GS 121-05-037: a new Galactic chimney candidate with signs of triggered star formation; EDP Sciences; Astronomy and Astrophysics; 668; 9-2022; 1-15
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/217298
identifier_str_mv Suad, Laura Andrea; Molina Lera, José Alejo; Cichowolski, Silvina; GS 121-05-037: a new Galactic chimney candidate with signs of triggered star formation; EDP Sciences; Astronomy and Astrophysics; 668; 9-2022; 1-15
0004-6361
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://www.aanda.org/10.1051/0004-6361/202243942
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202243942
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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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