HD 210111: a new λ Bootis-type spectroscopic binary system

Autores
Paunzen, E.; Heiten, U.; Fraga, L.; Pintado, Olga Ines
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The small group of λ Bootis stars comprises late B- to early F-type stars, with moderate to extreme (up to a factor of 100) surface underabundances of most Fe-peak elements and solar abundances of lighter elements (C, N, O and S). The main mechanisms responsible for this phenomenon are atmospheric diffusion, meridional mixing and accretion of material from their surroundings. In particular, spectroscopic binary (SB) systems with λ Bootis-type components are very important to investigate the evolutionary status and accretion process in more detail. For HD 210111, δ Scuti-type pulsation was also found, which gives the opportunity to use the tools of asteroseismology for further investigations. The latter could result in strict constraints for the amount of diffusion for this star. Together with models for the accretion and its source, this provides a unique opportunity to shed more light on these important processes. We present classification and high-resolution spectra for HD 210111. A detailed investigation of the most likely combinations of single star components was performed. For this, composite spectra with different stellar astrophysical parameters were calculated and compared to the observations to find the best-fitting combination. HD 210111 comprises two equal (within the estimated errors) stars with Teff= 7400 K, log g= 3.8 dex, [M/H] =-1.0 dex and v sin i= 30 km s-1. This result is in line with other strict observational facts published so far for this object. This is only the third detailed investigation of the λ Bootis-type SB system, but the first one with a known infrared excess.
Fil: Paunzen, E.. Rozhen National Astronomical Observatory; Bulgaria
Fil: Heiten, U.. Institut für Astronomie der Universität Wien; Austria
Fil: Fraga, L.. Southern Observatory for Astrophysical Research; Chile
Fil: Pintado, Olga Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
Materia
Stars
Lambda Booties
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:11336/89437
Acceder
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network_name_str CONICET Digital (CONICET)
spelling HD 210111: a new λ Bootis-type spectroscopic binary systemPaunzen, E.Heiten, U.Fraga, L.Pintado, Olga InesStarsLambda Bootieshttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1The small group of λ Bootis stars comprises late B- to early F-type stars, with moderate to extreme (up to a factor of 100) surface underabundances of most Fe-peak elements and solar abundances of lighter elements (C, N, O and S). The main mechanisms responsible for this phenomenon are atmospheric diffusion, meridional mixing and accretion of material from their surroundings. In particular, spectroscopic binary (SB) systems with λ Bootis-type components are very important to investigate the evolutionary status and accretion process in more detail. For HD 210111, δ Scuti-type pulsation was also found, which gives the opportunity to use the tools of asteroseismology for further investigations. The latter could result in strict constraints for the amount of diffusion for this star. Together with models for the accretion and its source, this provides a unique opportunity to shed more light on these important processes. We present classification and high-resolution spectra for HD 210111. A detailed investigation of the most likely combinations of single star components was performed. For this, composite spectra with different stellar astrophysical parameters were calculated and compared to the observations to find the best-fitting combination. HD 210111 comprises two equal (within the estimated errors) stars with Teff= 7400 K, log g= 3.8 dex, [M/H] =-1.0 dex and v sin i= 30 km s-1. This result is in line with other strict observational facts published so far for this object. This is only the third detailed investigation of the λ Bootis-type SB system, but the first one with a known infrared excess.Fil: Paunzen, E.. Rozhen National Astronomical Observatory; BulgariaFil: Heiten, U.. Institut für Astronomie der Universität Wien; AustriaFil: Fraga, L.. Southern Observatory for Astrophysical Research; ChileFil: Pintado, Olga Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; ArgentinaWiley Blackwell Publishing, Inc2012-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/89437Paunzen, E.; Heiten, U. ; Fraga, L. ; Pintado, Olga Ines; HD 210111: a new λ Bootis-type spectroscopic binary system; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 419; 4; 2-2012; 3604-36070035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2011.20007.xinfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/419/4/3604/2908091info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:10:02Zoai:ri.conicet.gov.ar:11336/89437instacron: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:34982025-10-15 15:10:02.329CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv HD 210111: a new λ Bootis-type spectroscopic binary system
title HD 210111: a new λ Bootis-type spectroscopic binary system
spellingShingle HD 210111: a new λ Bootis-type spectroscopic binary system
Paunzen, E.
Stars
Lambda Booties
title_short HD 210111: a new λ Bootis-type spectroscopic binary system
title_full HD 210111: a new λ Bootis-type spectroscopic binary system
title_fullStr HD 210111: a new λ Bootis-type spectroscopic binary system
title_full_unstemmed HD 210111: a new λ Bootis-type spectroscopic binary system
title_sort HD 210111: a new λ Bootis-type spectroscopic binary system
dc.creator.none.fl_str_mv Paunzen, E.
Heiten, U.
Fraga, L.
Pintado, Olga Ines
author Paunzen, E.
author_facet Paunzen, E.
Heiten, U.
Fraga, L.
Pintado, Olga Ines
author_role author
author2 Heiten, U.
Fraga, L.
Pintado, Olga Ines
author2_role author
author
author
dc.subject.none.fl_str_mv Stars
Lambda Booties
topic Stars
Lambda Booties
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The small group of λ Bootis stars comprises late B- to early F-type stars, with moderate to extreme (up to a factor of 100) surface underabundances of most Fe-peak elements and solar abundances of lighter elements (C, N, O and S). The main mechanisms responsible for this phenomenon are atmospheric diffusion, meridional mixing and accretion of material from their surroundings. In particular, spectroscopic binary (SB) systems with λ Bootis-type components are very important to investigate the evolutionary status and accretion process in more detail. For HD 210111, δ Scuti-type pulsation was also found, which gives the opportunity to use the tools of asteroseismology for further investigations. The latter could result in strict constraints for the amount of diffusion for this star. Together with models for the accretion and its source, this provides a unique opportunity to shed more light on these important processes. We present classification and high-resolution spectra for HD 210111. A detailed investigation of the most likely combinations of single star components was performed. For this, composite spectra with different stellar astrophysical parameters were calculated and compared to the observations to find the best-fitting combination. HD 210111 comprises two equal (within the estimated errors) stars with Teff= 7400 K, log g= 3.8 dex, [M/H] =-1.0 dex and v sin i= 30 km s-1. This result is in line with other strict observational facts published so far for this object. This is only the third detailed investigation of the λ Bootis-type SB system, but the first one with a known infrared excess.
Fil: Paunzen, E.. Rozhen National Astronomical Observatory; Bulgaria
Fil: Heiten, U.. Institut für Astronomie der Universität Wien; Austria
Fil: Fraga, L.. Southern Observatory for Astrophysical Research; Chile
Fil: Pintado, Olga Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
description The small group of λ Bootis stars comprises late B- to early F-type stars, with moderate to extreme (up to a factor of 100) surface underabundances of most Fe-peak elements and solar abundances of lighter elements (C, N, O and S). The main mechanisms responsible for this phenomenon are atmospheric diffusion, meridional mixing and accretion of material from their surroundings. In particular, spectroscopic binary (SB) systems with λ Bootis-type components are very important to investigate the evolutionary status and accretion process in more detail. For HD 210111, δ Scuti-type pulsation was also found, which gives the opportunity to use the tools of asteroseismology for further investigations. The latter could result in strict constraints for the amount of diffusion for this star. Together with models for the accretion and its source, this provides a unique opportunity to shed more light on these important processes. We present classification and high-resolution spectra for HD 210111. A detailed investigation of the most likely combinations of single star components was performed. For this, composite spectra with different stellar astrophysical parameters were calculated and compared to the observations to find the best-fitting combination. HD 210111 comprises two equal (within the estimated errors) stars with Teff= 7400 K, log g= 3.8 dex, [M/H] =-1.0 dex and v sin i= 30 km s-1. This result is in line with other strict observational facts published so far for this object. This is only the third detailed investigation of the λ Bootis-type SB system, but the first one with a known infrared excess.
publishDate 2012
dc.date.none.fl_str_mv 2012-02
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/11336/89437
Paunzen, E.; Heiten, U. ; Fraga, L. ; Pintado, Olga Ines; HD 210111: a new λ Bootis-type spectroscopic binary system; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 419; 4; 2-2012; 3604-3607
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/89437
identifier_str_mv Paunzen, E.; Heiten, U. ; Fraga, L. ; Pintado, Olga Ines; HD 210111: a new λ Bootis-type spectroscopic binary system; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 419; 4; 2-2012; 3604-3607
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/10.1111/j.1365-2966.2011.20007.x
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/419/4/3604/2908091
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
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score 13.221938

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