A comprehensive photometric and spectroscopic study of B-type stars in the open cluster NGC 6834

Autores
Ruiz Diaz, Matias Agustin; Aidelman, Yael Judith; Baume, Gustavo Luis; Granada, Anahi
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This study focuses on the open cluster NGC 6834. Despite being well-known, its primary parameters show considerable variation. As an intermediate-age cluster (50-80 million years), it is expected to host a prominent population of B-type stars, including numerous Be stars. Fifteen B-type variable stars have already been identified in the vicinity of the cluster, with four confirmed as Be stars through spectroscopic observations. Our spectrophotometric analysis aims to better understand the general and specific properties of NGC 6834, with particular emphasis on its B-type stars. Photometric data were gathered from gri images obtained with the Gemini North telescope, which was completed with several photometric catalogues. Additionally, 109 optical spectra for 89 stars in the cluster's region were obtained using the GMOS-MOS spectrograph. From the photometric data, we derive the foreground cluster colour excess, E(B - V) = 0.62. Through photometric diagrams, including traditional colour-colour and colour-magnitude diagrams and those incorporating the reddening-free Q parameter, we identify new stars with Hα" role="presentation">Hα emission. Spectral classification of 89 stars is achieved, along with estimations of basic physical parameters, and projected rotational velocities for 64 B-type stars. We identify five new Be stars: NGC 6834 3, 9, and 118 as cluster members, and NGC 6834 23 and 121 as non-members. The research contributes to a deeper understanding of the structure of NGC 6834 and its B-type star population.
Fil: Ruiz Diaz, Matias Agustin. 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 Cs.astronómicas y Geofísicas. Departamento de Espectrocopia Estelar; Argentina
Fil: Aidelman, Yael Judith. 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: Baume, Gustavo Luis. 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: Granada, Anahi. Universidad Nacional de Río Negro. Sede Andina. Laboratorio de Procesamiento de Señales Aplicadas y Computación de Alto Rendimiento; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
stars: emission-line, Be
stars: fundamental parameters
open clusters and associations: individual (NGC 6834)
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:11336/273897
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/273897
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A comprehensive photometric and spectroscopic study of B-type stars in the open cluster NGC 6834Ruiz Diaz, Matias AgustinAidelman, Yael JudithBaume, Gustavo LuisGranada, Anahistars: emission-line, Bestars: fundamental parametersopen clusters and associations: individual (NGC 6834)https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1This study focuses on the open cluster NGC 6834. Despite being well-known, its primary parameters show considerable variation. As an intermediate-age cluster (50-80 million years), it is expected to host a prominent population of B-type stars, including numerous Be stars. Fifteen B-type variable stars have already been identified in the vicinity of the cluster, with four confirmed as Be stars through spectroscopic observations. Our spectrophotometric analysis aims to better understand the general and specific properties of NGC 6834, with particular emphasis on its B-type stars. Photometric data were gathered from gri images obtained with the Gemini North telescope, which was completed with several photometric catalogues. Additionally, 109 optical spectra for 89 stars in the cluster's region were obtained using the GMOS-MOS spectrograph. From the photometric data, we derive the foreground cluster colour excess, E(B - V) = 0.62. Through photometric diagrams, including traditional colour-colour and colour-magnitude diagrams and those incorporating the reddening-free Q parameter, we identify new stars with Hα" role="presentation">Hα emission. Spectral classification of 89 stars is achieved, along with estimations of basic physical parameters, and projected rotational velocities for 64 B-type stars. We identify five new Be stars: NGC 6834 3, 9, and 118 as cluster members, and NGC 6834 23 and 121 as non-members. The research contributes to a deeper understanding of the structure of NGC 6834 and its B-type star population.Fil: Ruiz Diaz, Matias Agustin. 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 Cs.astronómicas y Geofísicas. Departamento de Espectrocopia Estelar; ArgentinaFil: Aidelman, Yael Judith. 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: Baume, Gustavo Luis. 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: Granada, Anahi. Universidad Nacional de Río Negro. Sede Andina. Laboratorio de Procesamiento de Señales Aplicadas y Computación de Alto Rendimiento; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaWiley Blackwell Publishing, Inc2025-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/273897Ruiz Diaz, Matias Agustin; Aidelman, Yael Judith; Baume, Gustavo Luis; Granada, Anahi; A comprehensive photometric and spectroscopic study of B-type stars in the open cluster NGC 6834; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 537; 2; 2-2025; 1763-17780035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/537/2/1763/7994433info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/staf114info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:52:42Zoai:ri.conicet.gov.ar:11336/273897instacron: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:34982025-11-12 09:52:42.702CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A comprehensive photometric and spectroscopic study of B-type stars in the open cluster NGC 6834
title A comprehensive photometric and spectroscopic study of B-type stars in the open cluster NGC 6834
spellingShingle A comprehensive photometric and spectroscopic study of B-type stars in the open cluster NGC 6834
Ruiz Diaz, Matias Agustin
stars: emission-line, Be
stars: fundamental parameters
open clusters and associations: individual (NGC 6834)
title_short A comprehensive photometric and spectroscopic study of B-type stars in the open cluster NGC 6834
title_full A comprehensive photometric and spectroscopic study of B-type stars in the open cluster NGC 6834
title_fullStr A comprehensive photometric and spectroscopic study of B-type stars in the open cluster NGC 6834
title_full_unstemmed A comprehensive photometric and spectroscopic study of B-type stars in the open cluster NGC 6834
title_sort A comprehensive photometric and spectroscopic study of B-type stars in the open cluster NGC 6834
dc.creator.none.fl_str_mv Ruiz Diaz, Matias Agustin
Aidelman, Yael Judith
Baume, Gustavo Luis
Granada, Anahi
author Ruiz Diaz, Matias Agustin
author_facet Ruiz Diaz, Matias Agustin
Aidelman, Yael Judith
Baume, Gustavo Luis
Granada, Anahi
author_role author
author2 Aidelman, Yael Judith
Baume, Gustavo Luis
Granada, Anahi
author2_role author
author
author
dc.subject.none.fl_str_mv stars: emission-line, Be
stars: fundamental parameters
open clusters and associations: individual (NGC 6834)
topic stars: emission-line, Be
stars: fundamental parameters
open clusters and associations: individual (NGC 6834)
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This study focuses on the open cluster NGC 6834. Despite being well-known, its primary parameters show considerable variation. As an intermediate-age cluster (50-80 million years), it is expected to host a prominent population of B-type stars, including numerous Be stars. Fifteen B-type variable stars have already been identified in the vicinity of the cluster, with four confirmed as Be stars through spectroscopic observations. Our spectrophotometric analysis aims to better understand the general and specific properties of NGC 6834, with particular emphasis on its B-type stars. Photometric data were gathered from gri images obtained with the Gemini North telescope, which was completed with several photometric catalogues. Additionally, 109 optical spectra for 89 stars in the cluster's region were obtained using the GMOS-MOS spectrograph. From the photometric data, we derive the foreground cluster colour excess, E(B - V) = 0.62. Through photometric diagrams, including traditional colour-colour and colour-magnitude diagrams and those incorporating the reddening-free Q parameter, we identify new stars with Hα" role="presentation">Hα emission. Spectral classification of 89 stars is achieved, along with estimations of basic physical parameters, and projected rotational velocities for 64 B-type stars. We identify five new Be stars: NGC 6834 3, 9, and 118 as cluster members, and NGC 6834 23 and 121 as non-members. The research contributes to a deeper understanding of the structure of NGC 6834 and its B-type star population.
Fil: Ruiz Diaz, Matias Agustin. 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 Cs.astronómicas y Geofísicas. Departamento de Espectrocopia Estelar; Argentina
Fil: Aidelman, Yael Judith. 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: Baume, Gustavo Luis. 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: Granada, Anahi. Universidad Nacional de Río Negro. Sede Andina. Laboratorio de Procesamiento de Señales Aplicadas y Computación de Alto Rendimiento; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description This study focuses on the open cluster NGC 6834. Despite being well-known, its primary parameters show considerable variation. As an intermediate-age cluster (50-80 million years), it is expected to host a prominent population of B-type stars, including numerous Be stars. Fifteen B-type variable stars have already been identified in the vicinity of the cluster, with four confirmed as Be stars through spectroscopic observations. Our spectrophotometric analysis aims to better understand the general and specific properties of NGC 6834, with particular emphasis on its B-type stars. Photometric data were gathered from gri images obtained with the Gemini North telescope, which was completed with several photometric catalogues. Additionally, 109 optical spectra for 89 stars in the cluster's region were obtained using the GMOS-MOS spectrograph. From the photometric data, we derive the foreground cluster colour excess, E(B - V) = 0.62. Through photometric diagrams, including traditional colour-colour and colour-magnitude diagrams and those incorporating the reddening-free Q parameter, we identify new stars with Hα" role="presentation">Hα emission. Spectral classification of 89 stars is achieved, along with estimations of basic physical parameters, and projected rotational velocities for 64 B-type stars. We identify five new Be stars: NGC 6834 3, 9, and 118 as cluster members, and NGC 6834 23 and 121 as non-members. The research contributes to a deeper understanding of the structure of NGC 6834 and its B-type star population.
publishDate 2025
dc.date.none.fl_str_mv 2025-02
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/11336/273897
Ruiz Diaz, Matias Agustin; Aidelman, Yael Judith; Baume, Gustavo Luis; Granada, Anahi; A comprehensive photometric and spectroscopic study of B-type stars in the open cluster NGC 6834; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 537; 2; 2-2025; 1763-1778
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/273897
identifier_str_mv Ruiz Diaz, Matias Agustin; Aidelman, Yael Judith; Baume, Gustavo Luis; Granada, Anahi; A comprehensive photometric and spectroscopic study of B-type stars in the open cluster NGC 6834; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 537; 2; 2-2025; 1763-1778
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/url/https://academic.oup.com/mnras/article/537/2/1763/7994433
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/staf114
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
application/pdf
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 13.24909

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