Resolving the kinematics of the discs around Galactic B[e] supergiants

Autores
Maravelias, G.; Kraus, Michaela; Cidale, Lydia Sonia; Borges Fernades, M.; Arias, María Laura; Curé, Michel; Vasilopoulos, G.
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
B[e] supergiants are luminous evolved massive stars. The mass-loss during this phase creates a complex circumstellar environment with atomic, molecular, and dusty regions usually found in rings or disc-like structures. For a better comprehension of the mechanisms behind the formation of these rings, detailed knowledge about their structure and dynamics is essential. To address that, we obtained high-resolution optical and near-infrared (near-IR) spectra for eight selected Galactic B[e] supergiants, for which CO emission has been detected. Assuming Keplerian rotation for the disc, we combine the kinematics obtained from the CO bands in the near-IR with those obtained by fitting the forbidden emission [OI] λ5577, [O I] λλ6300,6363, and [Ca II] λλ7291,7323 lines in the optical to probe the disc structure. We find that the emission originates from multiple ring structures around all B[e] supergiants, with each one of them displaying a unique combination of rings regardless of whether the object is part of a binary system. The confirmed binaries display spectroscopic variations of their line intensities and profiles as well as photometric variability, whereas the ring structures around the single stars are stable.
Fil: Maravelias, G.. Universidad de Valparaíso; Chile. Academia de la República de Checa; República Checa
Fil: Kraus, Michaela. Academia de la República de Checa; República Checa. Universidad de Tartu; Estonia
Fil: Cidale, Lydia Sonia. Universidad de Valparaíso; Chile. 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. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Borges Fernades, M.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
Fil: Arias, María Laura. 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. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Curé, Michel. Universidad de Valparaíso; Chile
Fil: Vasilopoulos, G.. Max-planck-institut Extraterrestrische Physik; Alemania
Materia
CIRCUMSTELLAR MATTER
OUTFLOWS
STARS: EARLY-TYPE
STARS: MASSIVE
STARS: WINDS
SUPERGIANTS
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:11336/96863
Acceder
id CONICETDig_6ed982152c151316c3f51466a0d0db29
oai_identifier_str oai:ri.conicet.gov.ar:11336/96863
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Resolving the kinematics of the discs around Galactic B[e] supergiantsMaravelias, G.Kraus, MichaelaCidale, Lydia SoniaBorges Fernades, M.Arias, María LauraCuré, MichelVasilopoulos, G.CIRCUMSTELLAR MATTEROUTFLOWSSTARS: EARLY-TYPESTARS: MASSIVESTARS: WINDSSUPERGIANTShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1B[e] supergiants are luminous evolved massive stars. The mass-loss during this phase creates a complex circumstellar environment with atomic, molecular, and dusty regions usually found in rings or disc-like structures. For a better comprehension of the mechanisms behind the formation of these rings, detailed knowledge about their structure and dynamics is essential. To address that, we obtained high-resolution optical and near-infrared (near-IR) spectra for eight selected Galactic B[e] supergiants, for which CO emission has been detected. Assuming Keplerian rotation for the disc, we combine the kinematics obtained from the CO bands in the near-IR with those obtained by fitting the forbidden emission [OI] λ5577, [O I] λλ6300,6363, and [Ca II] λλ7291,7323 lines in the optical to probe the disc structure. We find that the emission originates from multiple ring structures around all B[e] supergiants, with each one of them displaying a unique combination of rings regardless of whether the object is part of a binary system. The confirmed binaries display spectroscopic variations of their line intensities and profiles as well as photometric variability, whereas the ring structures around the single stars are stable.Fil: Maravelias, G.. Universidad de Valparaíso; Chile. Academia de la República de Checa; República ChecaFil: Kraus, Michaela. Academia de la República de Checa; República Checa. Universidad de Tartu; EstoniaFil: Cidale, Lydia Sonia. Universidad de Valparaíso; Chile. 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. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Borges Fernades, M.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; BrasilFil: Arias, María Laura. 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. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Curé, Michel. Universidad de Valparaíso; ChileFil: Vasilopoulos, G.. Max-planck-institut Extraterrestrische Physik; AlemaniaWiley Blackwell Publishing, Inc2018-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/96863Maravelias, G.; Kraus, Michaela; Cidale, Lydia Sonia; Borges Fernades, M.; Arias, María Laura; et al.; Resolving the kinematics of the discs around Galactic B[e] supergiants; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 480; 1; 10-2018; 320-3440035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/sty1747info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/480/1/320/5049025?redirectedFrom=fulltextinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:12Zoai:ri.conicet.gov.ar:11336/96863instacron: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 09:47:13.025CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Resolving the kinematics of the discs around Galactic B[e] supergiants
title Resolving the kinematics of the discs around Galactic B[e] supergiants
spellingShingle Resolving the kinematics of the discs around Galactic B[e] supergiants
Maravelias, G.
CIRCUMSTELLAR MATTER
OUTFLOWS
STARS: EARLY-TYPE
STARS: MASSIVE
STARS: WINDS
SUPERGIANTS
title_short Resolving the kinematics of the discs around Galactic B[e] supergiants
title_full Resolving the kinematics of the discs around Galactic B[e] supergiants
title_fullStr Resolving the kinematics of the discs around Galactic B[e] supergiants
title_full_unstemmed Resolving the kinematics of the discs around Galactic B[e] supergiants
title_sort Resolving the kinematics of the discs around Galactic B[e] supergiants
dc.creator.none.fl_str_mv Maravelias, G.
Kraus, Michaela
Cidale, Lydia Sonia
Borges Fernades, M.
Arias, María Laura
Curé, Michel
Vasilopoulos, G.
author Maravelias, G.
author_facet Maravelias, G.
Kraus, Michaela
Cidale, Lydia Sonia
Borges Fernades, M.
Arias, María Laura
Curé, Michel
Vasilopoulos, G.
author_role author
author2 Kraus, Michaela
Cidale, Lydia Sonia
Borges Fernades, M.
Arias, María Laura
Curé, Michel
Vasilopoulos, G.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv CIRCUMSTELLAR MATTER
OUTFLOWS
STARS: EARLY-TYPE
STARS: MASSIVE
STARS: WINDS
SUPERGIANTS
topic CIRCUMSTELLAR MATTER
OUTFLOWS
STARS: EARLY-TYPE
STARS: MASSIVE
STARS: WINDS
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] supergiants are luminous evolved massive stars. The mass-loss during this phase creates a complex circumstellar environment with atomic, molecular, and dusty regions usually found in rings or disc-like structures. For a better comprehension of the mechanisms behind the formation of these rings, detailed knowledge about their structure and dynamics is essential. To address that, we obtained high-resolution optical and near-infrared (near-IR) spectra for eight selected Galactic B[e] supergiants, for which CO emission has been detected. Assuming Keplerian rotation for the disc, we combine the kinematics obtained from the CO bands in the near-IR with those obtained by fitting the forbidden emission [OI] λ5577, [O I] λλ6300,6363, and [Ca II] λλ7291,7323 lines in the optical to probe the disc structure. We find that the emission originates from multiple ring structures around all B[e] supergiants, with each one of them displaying a unique combination of rings regardless of whether the object is part of a binary system. The confirmed binaries display spectroscopic variations of their line intensities and profiles as well as photometric variability, whereas the ring structures around the single stars are stable.
Fil: Maravelias, G.. Universidad de Valparaíso; Chile. Academia de la República de Checa; República Checa
Fil: Kraus, Michaela. Academia de la República de Checa; República Checa. Universidad de Tartu; Estonia
Fil: Cidale, Lydia Sonia. Universidad de Valparaíso; Chile. 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. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Borges Fernades, M.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
Fil: Arias, María Laura. 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. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Curé, Michel. Universidad de Valparaíso; Chile
Fil: Vasilopoulos, G.. Max-planck-institut Extraterrestrische Physik; Alemania
description B[e] supergiants are luminous evolved massive stars. The mass-loss during this phase creates a complex circumstellar environment with atomic, molecular, and dusty regions usually found in rings or disc-like structures. For a better comprehension of the mechanisms behind the formation of these rings, detailed knowledge about their structure and dynamics is essential. To address that, we obtained high-resolution optical and near-infrared (near-IR) spectra for eight selected Galactic B[e] supergiants, for which CO emission has been detected. Assuming Keplerian rotation for the disc, we combine the kinematics obtained from the CO bands in the near-IR with those obtained by fitting the forbidden emission [OI] λ5577, [O I] λλ6300,6363, and [Ca II] λλ7291,7323 lines in the optical to probe the disc structure. We find that the emission originates from multiple ring structures around all B[e] supergiants, with each one of them displaying a unique combination of rings regardless of whether the object is part of a binary system. The confirmed binaries display spectroscopic variations of their line intensities and profiles as well as photometric variability, whereas the ring structures around the single stars are stable.
publishDate 2018
dc.date.none.fl_str_mv 2018-10
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/11336/96863
Maravelias, G.; Kraus, Michaela; Cidale, Lydia Sonia; Borges Fernades, M.; Arias, María Laura; et al.; Resolving the kinematics of the discs around Galactic B[e] supergiants; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 480; 1; 10-2018; 320-344
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/96863
identifier_str_mv Maravelias, G.; Kraus, Michaela; Cidale, Lydia Sonia; Borges Fernades, M.; Arias, María Laura; et al.; Resolving the kinematics of the discs around Galactic B[e] supergiants; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 480; 1; 10-2018; 320-344
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/sty1747
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/480/1/320/5049025?redirectedFrom=fulltext
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 Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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
_version_ 1844613471759499264
score 13.070432

Publicaciones similares