Resolving the circumstellar environment of the galactic B[e] supergiant atar MWC 137 from large to small scales

Autores
Kraus, Michaela; Liimets, Tiina; Cappa, Cristina Elisabeth; Cidale, Lydia Sonia; Nickeler , Dieter H.; Duronea, Nicolas Urbano; Arias, Maria L.; Gunawan, Diah S.; Oksala, Mary E.; Borges Fernandes, Marcelo
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Galactic object MWC 137 has been suggested to belong to the group of B[e] supergiants. However, with its large-scale optical bipolar ring nebula and high-velocity jet and knots, it is a rather atypical representative of this class. We performed multiwavelength observations spreading from the optical to the radio regimes. Based on optical imaging and long-slit spectroscopic data, we found that the northern parts of the large-scale nebula are predominantly blueshifted, while the southern regions appear mostly redshifted. We developed a geometrical model consisting of two double cones. Although various observational features can be approximated with such a scenario, the observed velocity pattern is more complex. Using near-infrared integral-field unit spectroscopy, we studied the hot molecular gas in the vicinity of the star. The emission from the hot CO gas arises in a small-scale disk revolving around the star on Keplerian orbits. Although the disk itself cannot be spatially resolved, its emission is reflected by the dust arranged in arc-like structures and the clumps surrounding MWC 137 on small scales. In the radio regime, we mapped the cold molecular gas in the outskirts of the optical nebula. We found that large amounts of cool molecular gas and warm dust embrace the optical nebula in the east, south, and west. No cold gas or dust was detected in the north and northwestern regions. Despite the new insights into the nebula kinematics gained from our studies, the real formation scenario of the large-scale nebula remains an open issue.
Fil: Kraus, Michaela. Astronomický Ústav, Akademie Véd Ceské Republiky;
Fil: Liimets, Tiina. Tarty Observatory, Tartumaa, Estonia;
Fil: Cappa, Cristina Elisabeth. 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: Cidale, Lydia Sonia. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Nickeler , Dieter H.. Astronomický Ústav, Akademie Véd Ceské Republiky;
Fil: Duronea, Nicolas Urbano. 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: Arias, Maria L.. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina
Fil: Gunawan, Diah S.. Universidad de Valparaíso; Chile
Fil: Oksala, Mary E.. California Lutheran University; Estados Unidos
Fil: Borges Fernandes, Marcelo. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
Materia
Circumstellar matter
Early type stars
MWC 137 (estrella)
Massive stars
Supergiants stars
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:11336/32293
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Resolving the circumstellar environment of the galactic B[e] supergiant atar MWC 137 from large to small scalesKraus, MichaelaLiimets, TiinaCappa, Cristina ElisabethCidale, Lydia SoniaNickeler , Dieter H.Duronea, Nicolas UrbanoArias, Maria L.Gunawan, Diah S.Oksala, Mary E.Borges Fernandes, MarceloCircumstellar matterEarly type starsMWC 137 (estrella)Massive starsSupergiants starshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The Galactic object MWC 137 has been suggested to belong to the group of B[e] supergiants. However, with its large-scale optical bipolar ring nebula and high-velocity jet and knots, it is a rather atypical representative of this class. We performed multiwavelength observations spreading from the optical to the radio regimes. Based on optical imaging and long-slit spectroscopic data, we found that the northern parts of the large-scale nebula are predominantly blueshifted, while the southern regions appear mostly redshifted. We developed a geometrical model consisting of two double cones. Although various observational features can be approximated with such a scenario, the observed velocity pattern is more complex. Using near-infrared integral-field unit spectroscopy, we studied the hot molecular gas in the vicinity of the star. The emission from the hot CO gas arises in a small-scale disk revolving around the star on Keplerian orbits. Although the disk itself cannot be spatially resolved, its emission is reflected by the dust arranged in arc-like structures and the clumps surrounding MWC 137 on small scales. In the radio regime, we mapped the cold molecular gas in the outskirts of the optical nebula. We found that large amounts of cool molecular gas and warm dust embrace the optical nebula in the east, south, and west. No cold gas or dust was detected in the north and northwestern regions. Despite the new insights into the nebula kinematics gained from our studies, the real formation scenario of the large-scale nebula remains an open issue.Fil: Kraus, Michaela. Astronomický Ústav, Akademie Véd Ceské Republiky;Fil: Liimets, Tiina. Tarty Observatory, Tartumaa, Estonia;Fil: Cappa, Cristina Elisabeth. 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: Cidale, Lydia Sonia. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Nickeler , Dieter H.. Astronomický Ústav, Akademie Véd Ceské Republiky;Fil: Duronea, Nicolas Urbano. 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: Arias, Maria L.. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; ArgentinaFil: Gunawan, Diah S.. Universidad de Valparaíso; ChileFil: Oksala, Mary E.. California Lutheran University; Estados UnidosFil: Borges Fernandes, Marcelo. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; BrasilIOP 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/11336/32293Borges Fernandes, Marcelo; Oksala, Mary E.; Gunawan, Diah S.; Arias, Maria L.; Duronea, Nicolas Urbano; Nickeler , Dieter H.; et al.; Resolving the circumstellar environment of the galactic B[e] supergiant atar MWC 137 from large to small scales; IOP Publishing; Astronomical Journal; 154; 5; 9-2017; 186-2020004-6256CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.3847/1538-3881/aa8df6/metainfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-3881/aa8df6info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:00:22Zoai:ri.conicet.gov.ar:11336/32293instacron: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 12:00:22.966CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Resolving the circumstellar environment of the galactic B[e] supergiant atar MWC 137 from large to small scales
title Resolving the circumstellar environment of the galactic B[e] supergiant atar MWC 137 from large to small scales
spellingShingle Resolving the circumstellar environment of the galactic B[e] supergiant atar MWC 137 from large to small scales
Kraus, Michaela
Circumstellar matter
Early type stars
MWC 137 (estrella)
Massive stars
Supergiants stars
title_short Resolving the circumstellar environment of the galactic B[e] supergiant atar MWC 137 from large to small scales
title_full Resolving the circumstellar environment of the galactic B[e] supergiant atar MWC 137 from large to small scales
title_fullStr Resolving the circumstellar environment of the galactic B[e] supergiant atar MWC 137 from large to small scales
title_full_unstemmed Resolving the circumstellar environment of the galactic B[e] supergiant atar MWC 137 from large to small scales
title_sort Resolving the circumstellar environment of the galactic B[e] supergiant atar MWC 137 from large to small scales
dc.creator.none.fl_str_mv Kraus, Michaela
Liimets, Tiina
Cappa, Cristina Elisabeth
Cidale, Lydia Sonia
Nickeler , Dieter H.
Duronea, Nicolas Urbano
Arias, Maria L.
Gunawan, Diah S.
Oksala, Mary E.
Borges Fernandes, Marcelo
author Kraus, Michaela
author_facet Kraus, Michaela
Liimets, Tiina
Cappa, Cristina Elisabeth
Cidale, Lydia Sonia
Nickeler , Dieter H.
Duronea, Nicolas Urbano
Arias, Maria L.
Gunawan, Diah S.
Oksala, Mary E.
Borges Fernandes, Marcelo
author_role author
author2 Liimets, Tiina
Cappa, Cristina Elisabeth
Cidale, Lydia Sonia
Nickeler , Dieter H.
Duronea, Nicolas Urbano
Arias, Maria L.
Gunawan, Diah S.
Oksala, Mary E.
Borges Fernandes, Marcelo
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Circumstellar matter
Early type stars
MWC 137 (estrella)
Massive stars
Supergiants stars
topic Circumstellar matter
Early type stars
MWC 137 (estrella)
Massive stars
Supergiants stars
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Galactic object MWC 137 has been suggested to belong to the group of B[e] supergiants. However, with its large-scale optical bipolar ring nebula and high-velocity jet and knots, it is a rather atypical representative of this class. We performed multiwavelength observations spreading from the optical to the radio regimes. Based on optical imaging and long-slit spectroscopic data, we found that the northern parts of the large-scale nebula are predominantly blueshifted, while the southern regions appear mostly redshifted. We developed a geometrical model consisting of two double cones. Although various observational features can be approximated with such a scenario, the observed velocity pattern is more complex. Using near-infrared integral-field unit spectroscopy, we studied the hot molecular gas in the vicinity of the star. The emission from the hot CO gas arises in a small-scale disk revolving around the star on Keplerian orbits. Although the disk itself cannot be spatially resolved, its emission is reflected by the dust arranged in arc-like structures and the clumps surrounding MWC 137 on small scales. In the radio regime, we mapped the cold molecular gas in the outskirts of the optical nebula. We found that large amounts of cool molecular gas and warm dust embrace the optical nebula in the east, south, and west. No cold gas or dust was detected in the north and northwestern regions. Despite the new insights into the nebula kinematics gained from our studies, the real formation scenario of the large-scale nebula remains an open issue.
Fil: Kraus, Michaela. Astronomický Ústav, Akademie Véd Ceské Republiky;
Fil: Liimets, Tiina. Tarty Observatory, Tartumaa, Estonia;
Fil: Cappa, Cristina Elisabeth. 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: Cidale, Lydia Sonia. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Nickeler , Dieter H.. Astronomický Ústav, Akademie Véd Ceské Republiky;
Fil: Duronea, Nicolas Urbano. 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: Arias, Maria L.. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina
Fil: Gunawan, Diah S.. Universidad de Valparaíso; Chile
Fil: Oksala, Mary E.. California Lutheran University; Estados Unidos
Fil: Borges Fernandes, Marcelo. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
description The Galactic object MWC 137 has been suggested to belong to the group of B[e] supergiants. However, with its large-scale optical bipolar ring nebula and high-velocity jet and knots, it is a rather atypical representative of this class. We performed multiwavelength observations spreading from the optical to the radio regimes. Based on optical imaging and long-slit spectroscopic data, we found that the northern parts of the large-scale nebula are predominantly blueshifted, while the southern regions appear mostly redshifted. We developed a geometrical model consisting of two double cones. Although various observational features can be approximated with such a scenario, the observed velocity pattern is more complex. Using near-infrared integral-field unit spectroscopy, we studied the hot molecular gas in the vicinity of the star. The emission from the hot CO gas arises in a small-scale disk revolving around the star on Keplerian orbits. Although the disk itself cannot be spatially resolved, its emission is reflected by the dust arranged in arc-like structures and the clumps surrounding MWC 137 on small scales. In the radio regime, we mapped the cold molecular gas in the outskirts of the optical nebula. We found that large amounts of cool molecular gas and warm dust embrace the optical nebula in the east, south, and west. No cold gas or dust was detected in the north and northwestern regions. Despite the new insights into the nebula kinematics gained from our studies, the real formation scenario of the large-scale nebula remains an open issue.
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/11336/32293
Borges Fernandes, Marcelo; Oksala, Mary E.; Gunawan, Diah S.; Arias, Maria L.; Duronea, Nicolas Urbano; Nickeler , Dieter H.; et al.; Resolving the circumstellar environment of the galactic B[e] supergiant atar MWC 137 from large to small scales; IOP Publishing; Astronomical Journal; 154; 5; 9-2017; 186-202
0004-6256
CONICET Digital
CONICET
url http://hdl.handle.net/11336/32293
identifier_str_mv Borges Fernandes, Marcelo; Oksala, Mary E.; Gunawan, Diah S.; Arias, Maria L.; Duronea, Nicolas Urbano; Nickeler , Dieter H.; et al.; Resolving the circumstellar environment of the galactic B[e] supergiant atar MWC 137 from large to small scales; IOP Publishing; Astronomical Journal; 154; 5; 9-2017; 186-202
0004-6256
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.3847/1538-3881/aa8df6/meta
info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-3881/aa8df6
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
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score 12.982451

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