Normal A0−A1 stars with low rotational velocities: I. Abundance determination and classification

Autores
Royer, F.; Gebran, M.; Monier, R.; Adelman, S.; Smalley, B.; Pintado, Olga Ines; Reiners, A.; Hill, G.; Gulliver, A.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Context: The study of rotational velocity distributions for normal stars requires an accurate spectral characterization of the objects in order to avoid polluting the results with undetected binary or peculiar stars. This piece of information is a key issue in the understanding of the link between rotation and the presence of chemical peculiarities. Aims: A sample of 47 low vsin i A0–A1 stars (vsin i < 65km s−1 ), initially selected as main-sequence normal stars, are investigated with high-resolution and high signal-to-noise spectroscopic data. The aim is to detect spectroscopic binaries and chemically peculiar stars, and eventually establish a list of confirmed normal stars. Methods: A detailed abundance analysis and spectral synthesis is performed to derive abundances for 14 chemical species. A hierarchical classification, taking measurement errors into account, is applied to the abundance space and splits the sample into two different groups, identified as the chemically peculiar stars and the normal stars. Results: We show that about one third of the sample is actually composed of spectroscopic binaries (12 double-lined and five singlelined spectroscopic binaries). The hierarchical classification breaks down the remaining sample into 13 chemically peculiar stars (or uncertain) and 17 normal stars.
Fil: Royer, F.. Université Paris Diderot - Paris 7; Francia
Fil: Gebran, M.. Notre Dame University-Louaize; Líbano
Fil: Monier, R.. Universite Pierre et Marie Curie; Francia
Fil: Adelman, S.. The Citadel; Estados Unidos
Fil: Smalley, B.. Keele University; Reino Unido
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
Fil: Reiners, A.. Institut für Astrophysik Göttingen; Alemania
Fil: Hill, G.. Brandon University; Canadá
Fil: Gulliver, A.. Brandon University; Canadá
Materia
Stars: early-type
Stars: rotation
Binaries: spectroscopic
Stars abundances
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:11336/30818
Acceder
id CONICETDig_7bc60667b58e0012c26c60b4046a351b
oai_identifier_str oai:ri.conicet.gov.ar:11336/30818
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Normal A0−A1 stars with low rotational velocities: I. Abundance determination and classificationRoyer, F.Gebran, M.Monier, R.Adelman, S.Smalley, B.Pintado, Olga InesReiners, A.Hill, G.Gulliver, A.Stars: early-typeStars: rotationBinaries: spectroscopicStars abundanceshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context: The study of rotational velocity distributions for normal stars requires an accurate spectral characterization of the objects in order to avoid polluting the results with undetected binary or peculiar stars. This piece of information is a key issue in the understanding of the link between rotation and the presence of chemical peculiarities. Aims: A sample of 47 low vsin i A0–A1 stars (vsin i < 65km s−1 ), initially selected as main-sequence normal stars, are investigated with high-resolution and high signal-to-noise spectroscopic data. The aim is to detect spectroscopic binaries and chemically peculiar stars, and eventually establish a list of confirmed normal stars. Methods: A detailed abundance analysis and spectral synthesis is performed to derive abundances for 14 chemical species. A hierarchical classification, taking measurement errors into account, is applied to the abundance space and splits the sample into two different groups, identified as the chemically peculiar stars and the normal stars. Results: We show that about one third of the sample is actually composed of spectroscopic binaries (12 double-lined and five singlelined spectroscopic binaries). The hierarchical classification breaks down the remaining sample into 13 chemically peculiar stars (or uncertain) and 17 normal stars.Fil: Royer, F.. Université Paris Diderot - Paris 7; FranciaFil: Gebran, M.. Notre Dame University-Louaize; LíbanoFil: Monier, R.. Universite Pierre et Marie Curie; FranciaFil: Adelman, S.. The Citadel; Estados UnidosFil: Smalley, B.. Keele University; Reino UnidoFil: 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; ArgentinaFil: Reiners, A.. Institut für Astrophysik Göttingen; AlemaniaFil: Hill, G.. Brandon University; CanadáFil: Gulliver, A.. Brandon University; CanadáEDP Sciences2014-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/30818Gulliver, A.; Hill, G.; Reiners, A.; Pintado, Olga Ines; Smalley, B.; Adelman, S.; et al.; Normal A0−A1 stars with low rotational velocities: I. Abundance determination and classification; EDP Sciences; Astronomy and Astrophysics; 562; 2-2014; 84-105; A840004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1401.2372info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201322762info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2014/02/aa22762-13/aa22762-13.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:09:07Zoai:ri.conicet.gov.ar:11336/30818instacron: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 10:09:07.533CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Normal A0−A1 stars with low rotational velocities: I. Abundance determination and classification
title Normal A0−A1 stars with low rotational velocities: I. Abundance determination and classification
spellingShingle Normal A0−A1 stars with low rotational velocities: I. Abundance determination and classification
Royer, F.
Stars: early-type
Stars: rotation
Binaries: spectroscopic
Stars abundances
title_short Normal A0−A1 stars with low rotational velocities: I. Abundance determination and classification
title_full Normal A0−A1 stars with low rotational velocities: I. Abundance determination and classification
title_fullStr Normal A0−A1 stars with low rotational velocities: I. Abundance determination and classification
title_full_unstemmed Normal A0−A1 stars with low rotational velocities: I. Abundance determination and classification
title_sort Normal A0−A1 stars with low rotational velocities: I. Abundance determination and classification
dc.creator.none.fl_str_mv Royer, F.
Gebran, M.
Monier, R.
Adelman, S.
Smalley, B.
Pintado, Olga Ines
Reiners, A.
Hill, G.
Gulliver, A.
author Royer, F.
author_facet Royer, F.
Gebran, M.
Monier, R.
Adelman, S.
Smalley, B.
Pintado, Olga Ines
Reiners, A.
Hill, G.
Gulliver, A.
author_role author
author2 Gebran, M.
Monier, R.
Adelman, S.
Smalley, B.
Pintado, Olga Ines
Reiners, A.
Hill, G.
Gulliver, A.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Stars: early-type
Stars: rotation
Binaries: spectroscopic
Stars abundances
topic Stars: early-type
Stars: rotation
Binaries: spectroscopic
Stars abundances
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Context: The study of rotational velocity distributions for normal stars requires an accurate spectral characterization of the objects in order to avoid polluting the results with undetected binary or peculiar stars. This piece of information is a key issue in the understanding of the link between rotation and the presence of chemical peculiarities. Aims: A sample of 47 low vsin i A0–A1 stars (vsin i < 65km s−1 ), initially selected as main-sequence normal stars, are investigated with high-resolution and high signal-to-noise spectroscopic data. The aim is to detect spectroscopic binaries and chemically peculiar stars, and eventually establish a list of confirmed normal stars. Methods: A detailed abundance analysis and spectral synthesis is performed to derive abundances for 14 chemical species. A hierarchical classification, taking measurement errors into account, is applied to the abundance space and splits the sample into two different groups, identified as the chemically peculiar stars and the normal stars. Results: We show that about one third of the sample is actually composed of spectroscopic binaries (12 double-lined and five singlelined spectroscopic binaries). The hierarchical classification breaks down the remaining sample into 13 chemically peculiar stars (or uncertain) and 17 normal stars.
Fil: Royer, F.. Université Paris Diderot - Paris 7; Francia
Fil: Gebran, M.. Notre Dame University-Louaize; Líbano
Fil: Monier, R.. Universite Pierre et Marie Curie; Francia
Fil: Adelman, S.. The Citadel; Estados Unidos
Fil: Smalley, B.. Keele University; Reino Unido
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
Fil: Reiners, A.. Institut für Astrophysik Göttingen; Alemania
Fil: Hill, G.. Brandon University; Canadá
Fil: Gulliver, A.. Brandon University; Canadá
description Context: The study of rotational velocity distributions for normal stars requires an accurate spectral characterization of the objects in order to avoid polluting the results with undetected binary or peculiar stars. This piece of information is a key issue in the understanding of the link between rotation and the presence of chemical peculiarities. Aims: A sample of 47 low vsin i A0–A1 stars (vsin i < 65km s−1 ), initially selected as main-sequence normal stars, are investigated with high-resolution and high signal-to-noise spectroscopic data. The aim is to detect spectroscopic binaries and chemically peculiar stars, and eventually establish a list of confirmed normal stars. Methods: A detailed abundance analysis and spectral synthesis is performed to derive abundances for 14 chemical species. A hierarchical classification, taking measurement errors into account, is applied to the abundance space and splits the sample into two different groups, identified as the chemically peculiar stars and the normal stars. Results: We show that about one third of the sample is actually composed of spectroscopic binaries (12 double-lined and five singlelined spectroscopic binaries). The hierarchical classification breaks down the remaining sample into 13 chemically peculiar stars (or uncertain) and 17 normal stars.
publishDate 2014
dc.date.none.fl_str_mv 2014-02
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/11336/30818
Gulliver, A.; Hill, G.; Reiners, A.; Pintado, Olga Ines; Smalley, B.; Adelman, S.; et al.; Normal A0−A1 stars with low rotational velocities: I. Abundance determination and classification; EDP Sciences; Astronomy and Astrophysics; 562; 2-2014; 84-105; A84
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/30818
identifier_str_mv Gulliver, A.; Hill, G.; Reiners, A.; Pintado, Olga Ines; Smalley, B.; Adelman, S.; et al.; Normal A0−A1 stars with low rotational velocities: I. Abundance determination and classification; EDP Sciences; Astronomy and Astrophysics; 562; 2-2014; 84-105; A84
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://arxiv.org/abs/1401.2372
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201322762
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2014/02/aa22762-13/aa22762-13.html
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 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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