Follow-Up of Extended Shells around B[e] Stars

Autores
Liimets, Tiina; Kraus, Michaela; Moiseev, Alexei; Duronea, Nicolas Urbano; Cidale, Lydia Sonia; Fariña, Cecilia
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
B[e] stars are massive B type emission line stars in different evolutionary stages ranging from pre-main sequence to post-main sequence. Due to their mass loss and ejection events these objects deposit huge amounts of mass and energy into their environment and enrich it with chemically processed material, contributing significantly to the chemical and dynamical evolution of their host galaxies. However, the large-scale environments of these enigmatic objects have not attracted much attention. The first and so far only catalog reporting the detection of extended shells around a sample of B[e] stars was an Hα imaging survey carried out in the year 2001, and was limited to bright targets in the northern hemisphere. We have recently started a follow-up of those targets to detect possible evolution of their nebulae in the plane of the sky over a baseline of two decades. Furthermore, we extend our survey to southern targets and fainter northern ones to complement and complete our knowledge on large-scale ejecta surrounding B[e] stars. Besides imaging in Hα and selected nebular lines, we utilize long-slit and 3D spectral observations across the nebulae to derive their physical properties. We discovered pronounced nebula structures around 15 more objects, resulting in a total of 27 B[e] stars with a large-scale nebula. Here we present our (preliminary) results for three selected objects: the two massive supergiants MWC137 and MWC 314, and the unclassified B[e] star MWC 819.
Fil: Liimets, Tiina. Czech Academy of Sciences; República Checa
Fil: Kraus, Michaela. Czech Academy of Sciences; República Checa
Fil: Moiseev, Alexei. Academia de Ciencias de Rusia.; Rusia
Fil: Duronea, Nicolas Urbano. 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: Cidale, Lydia Sonia. 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: Fariña, Cecilia. Instituto de Astrofísica de Canarias; España
Materia
CIRCUMSTELLAR MATTER
STARS: INDIVIDUAL (MWC 137 MWC 314 MWC 819)
STARS: MASSIVE—SUPERGIANTS
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:11336/210868
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Follow-Up of Extended Shells around B[e] StarsLiimets, TiinaKraus, MichaelaMoiseev, AlexeiDuronea, Nicolas UrbanoCidale, Lydia SoniaFariña, CeciliaCIRCUMSTELLAR MATTERSTARS: INDIVIDUAL (MWC 137 MWC 314 MWC 819)STARS: MASSIVE—SUPERGIANTShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1B[e] stars are massive B type emission line stars in different evolutionary stages ranging from pre-main sequence to post-main sequence. Due to their mass loss and ejection events these objects deposit huge amounts of mass and energy into their environment and enrich it with chemically processed material, contributing significantly to the chemical and dynamical evolution of their host galaxies. However, the large-scale environments of these enigmatic objects have not attracted much attention. The first and so far only catalog reporting the detection of extended shells around a sample of B[e] stars was an Hα imaging survey carried out in the year 2001, and was limited to bright targets in the northern hemisphere. We have recently started a follow-up of those targets to detect possible evolution of their nebulae in the plane of the sky over a baseline of two decades. Furthermore, we extend our survey to southern targets and fainter northern ones to complement and complete our knowledge on large-scale ejecta surrounding B[e] stars. Besides imaging in Hα and selected nebular lines, we utilize long-slit and 3D spectral observations across the nebulae to derive their physical properties. We discovered pronounced nebula structures around 15 more objects, resulting in a total of 27 B[e] stars with a large-scale nebula. Here we present our (preliminary) results for three selected objects: the two massive supergiants MWC137 and MWC 314, and the unclassified B[e] star MWC 819.Fil: Liimets, Tiina. Czech Academy of Sciences; República ChecaFil: Kraus, Michaela. Czech Academy of Sciences; República ChecaFil: Moiseev, Alexei. Academia de Ciencias de Rusia.; RusiaFil: Duronea, Nicolas Urbano. 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: Cidale, Lydia Sonia. 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: Fariña, Cecilia. Instituto de Astrofísica de Canarias; EspañaMDPI2022-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/210868Liimets, Tiina; Kraus, Michaela; Moiseev, Alexei; Duronea, Nicolas Urbano; Cidale, Lydia Sonia; et al.; Follow-Up of Extended Shells around B[e] Stars; MDPI; Galaxies; 10; 2; 3-2022; 41-522075-4434CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2075-4434/10/2/41info:eu-repo/semantics/altIdentifier/doi/10.3390/galaxies10020041info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:38:18Zoai:ri.conicet.gov.ar:11336/210868instacron: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 11:38:18.512CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Follow-Up of Extended Shells around B[e] Stars
title Follow-Up of Extended Shells around B[e] Stars
spellingShingle Follow-Up of Extended Shells around B[e] Stars
Liimets, Tiina
CIRCUMSTELLAR MATTER
STARS: INDIVIDUAL (MWC 137 MWC 314 MWC 819)
STARS: MASSIVE—SUPERGIANTS
title_short Follow-Up of Extended Shells around B[e] Stars
title_full Follow-Up of Extended Shells around B[e] Stars
title_fullStr Follow-Up of Extended Shells around B[e] Stars
title_full_unstemmed Follow-Up of Extended Shells around B[e] Stars
title_sort Follow-Up of Extended Shells around B[e] Stars
dc.creator.none.fl_str_mv Liimets, Tiina
Kraus, Michaela
Moiseev, Alexei
Duronea, Nicolas Urbano
Cidale, Lydia Sonia
Fariña, Cecilia
author Liimets, Tiina
author_facet Liimets, Tiina
Kraus, Michaela
Moiseev, Alexei
Duronea, Nicolas Urbano
Cidale, Lydia Sonia
Fariña, Cecilia
author_role author
author2 Kraus, Michaela
Moiseev, Alexei
Duronea, Nicolas Urbano
Cidale, Lydia Sonia
Fariña, Cecilia
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv CIRCUMSTELLAR MATTER
STARS: INDIVIDUAL (MWC 137 MWC 314 MWC 819)
STARS: MASSIVE—SUPERGIANTS
topic CIRCUMSTELLAR MATTER
STARS: INDIVIDUAL (MWC 137 MWC 314 MWC 819)
STARS: MASSIVE—SUPERGIANTS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv B[e] stars are massive B type emission line stars in different evolutionary stages ranging from pre-main sequence to post-main sequence. Due to their mass loss and ejection events these objects deposit huge amounts of mass and energy into their environment and enrich it with chemically processed material, contributing significantly to the chemical and dynamical evolution of their host galaxies. However, the large-scale environments of these enigmatic objects have not attracted much attention. The first and so far only catalog reporting the detection of extended shells around a sample of B[e] stars was an Hα imaging survey carried out in the year 2001, and was limited to bright targets in the northern hemisphere. We have recently started a follow-up of those targets to detect possible evolution of their nebulae in the plane of the sky over a baseline of two decades. Furthermore, we extend our survey to southern targets and fainter northern ones to complement and complete our knowledge on large-scale ejecta surrounding B[e] stars. Besides imaging in Hα and selected nebular lines, we utilize long-slit and 3D spectral observations across the nebulae to derive their physical properties. We discovered pronounced nebula structures around 15 more objects, resulting in a total of 27 B[e] stars with a large-scale nebula. Here we present our (preliminary) results for three selected objects: the two massive supergiants MWC137 and MWC 314, and the unclassified B[e] star MWC 819.
Fil: Liimets, Tiina. Czech Academy of Sciences; República Checa
Fil: Kraus, Michaela. Czech Academy of Sciences; República Checa
Fil: Moiseev, Alexei. Academia de Ciencias de Rusia.; Rusia
Fil: Duronea, Nicolas Urbano. 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: Cidale, Lydia Sonia. 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: Fariña, Cecilia. Instituto de Astrofísica de Canarias; España
description B[e] stars are massive B type emission line stars in different evolutionary stages ranging from pre-main sequence to post-main sequence. Due to their mass loss and ejection events these objects deposit huge amounts of mass and energy into their environment and enrich it with chemically processed material, contributing significantly to the chemical and dynamical evolution of their host galaxies. However, the large-scale environments of these enigmatic objects have not attracted much attention. The first and so far only catalog reporting the detection of extended shells around a sample of B[e] stars was an Hα imaging survey carried out in the year 2001, and was limited to bright targets in the northern hemisphere. We have recently started a follow-up of those targets to detect possible evolution of their nebulae in the plane of the sky over a baseline of two decades. Furthermore, we extend our survey to southern targets and fainter northern ones to complement and complete our knowledge on large-scale ejecta surrounding B[e] stars. Besides imaging in Hα and selected nebular lines, we utilize long-slit and 3D spectral observations across the nebulae to derive their physical properties. We discovered pronounced nebula structures around 15 more objects, resulting in a total of 27 B[e] stars with a large-scale nebula. Here we present our (preliminary) results for three selected objects: the two massive supergiants MWC137 and MWC 314, and the unclassified B[e] star MWC 819.
publishDate 2022
dc.date.none.fl_str_mv 2022-03
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/11336/210868
Liimets, Tiina; Kraus, Michaela; Moiseev, Alexei; Duronea, Nicolas Urbano; Cidale, Lydia Sonia; et al.; Follow-Up of Extended Shells around B[e] Stars; MDPI; Galaxies; 10; 2; 3-2022; 41-52
2075-4434
CONICET Digital
CONICET
url http://hdl.handle.net/11336/210868
identifier_str_mv Liimets, Tiina; Kraus, Michaela; Moiseev, Alexei; Duronea, Nicolas Urbano; Cidale, Lydia Sonia; et al.; Follow-Up of Extended Shells around B[e] Stars; MDPI; Galaxies; 10; 2; 3-2022; 41-52
2075-4434
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.mdpi.com/2075-4434/10/2/41
info:eu-repo/semantics/altIdentifier/doi/10.3390/galaxies10020041
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
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
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
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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