A CH star in the globular cluster NGC 6426

Autores
Sharina, M.; Aringer, B.; Davoust, E.; Kniazev, A.; Donzelli, Carlos Jose
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report on the serendipitous discovery of a carbon star near the centre of the low-metallicity globular cluster NGC 6426. We determined its membership and chemical properties using medium-resolution spectra. The radial velocity of -159 km s-1 makes it a member of the cluster. We used photometric data from the literature and the COMARCS stellar atmospheric models to derive its luminosity, effective temperature, surface gravity, metallicity, and approximate C, N and O abundance ratios. According to these properties, we suggest that this star is a genuine carbon-rich low-metallicity asymptotic giant branch star. © 2012 The Authors Monthly Notices of the Royal Astronomical Society © 2012 RAS.
Fil: Sharina, M.. Russian Academy of Sciences. Special Astrophysical Observatory ; Rusia
Fil: Aringer, B.. Universidad de Viena; Austria
Fil: Davoust, E.. Université Fédérale Toulouse Midi-Pyrénées ; Francia
Fil: Kniazev, A.. South African Astronomical Observatory ; Sudáfrica. Lomonosov Moscow State University ; Rusia. Southern African Large Telescope Foundation; Sudáfrica
Fil: Donzelli, Carlos Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Materia
GLOBULAR CLUSTERS: INDIVIDUAL: NGC 6426
STARS: CARBON
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:11336/190932
Acceder
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network_name_str CONICET Digital (CONICET)
spelling A CH star in the globular cluster NGC 6426Sharina, M.Aringer, B.Davoust, E.Kniazev, A.Donzelli, Carlos JoseGLOBULAR CLUSTERS: INDIVIDUAL: NGC 6426STARS: CARBONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We report on the serendipitous discovery of a carbon star near the centre of the low-metallicity globular cluster NGC 6426. We determined its membership and chemical properties using medium-resolution spectra. The radial velocity of -159 km s-1 makes it a member of the cluster. We used photometric data from the literature and the COMARCS stellar atmospheric models to derive its luminosity, effective temperature, surface gravity, metallicity, and approximate C, N and O abundance ratios. According to these properties, we suggest that this star is a genuine carbon-rich low-metallicity asymptotic giant branch star. © 2012 The Authors Monthly Notices of the Royal Astronomical Society © 2012 RAS.Fil: Sharina, M.. Russian Academy of Sciences. Special Astrophysical Observatory ; RusiaFil: Aringer, B.. Universidad de Viena; AustriaFil: Davoust, E.. Université Fédérale Toulouse Midi-Pyrénées ; FranciaFil: Kniazev, A.. South African Astronomical Observatory ; Sudáfrica. Lomonosov Moscow State University ; Rusia. Southern African Large Telescope Foundation; SudáfricaFil: Donzelli, Carlos Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaWiley Blackwell Publishing, Inc2012-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/190932Sharina, M.; Aringer, B.; Davoust, E.; Kniazev, A.; Donzelli, Carlos Jose; A CH star in the globular cluster NGC 6426; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society: Letters; 426; 1; 10-2012; 1-60035-87111745-3933CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/j.1745-3933.2012.01317.x/fullinfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1745-3933.2012.01317.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:55:02Zoai:ri.conicet.gov.ar:11336/190932instacron: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 09:55:02.492CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A CH star in the globular cluster NGC 6426
title A CH star in the globular cluster NGC 6426
spellingShingle A CH star in the globular cluster NGC 6426
Sharina, M.
GLOBULAR CLUSTERS: INDIVIDUAL: NGC 6426
STARS: CARBON
title_short A CH star in the globular cluster NGC 6426
title_full A CH star in the globular cluster NGC 6426
title_fullStr A CH star in the globular cluster NGC 6426
title_full_unstemmed A CH star in the globular cluster NGC 6426
title_sort A CH star in the globular cluster NGC 6426
dc.creator.none.fl_str_mv Sharina, M.
Aringer, B.
Davoust, E.
Kniazev, A.
Donzelli, Carlos Jose
author Sharina, M.
author_facet Sharina, M.
Aringer, B.
Davoust, E.
Kniazev, A.
Donzelli, Carlos Jose
author_role author
author2 Aringer, B.
Davoust, E.
Kniazev, A.
Donzelli, Carlos Jose
author2_role author
author
author
author
dc.subject.none.fl_str_mv GLOBULAR CLUSTERS: INDIVIDUAL: NGC 6426
STARS: CARBON
topic GLOBULAR CLUSTERS: INDIVIDUAL: NGC 6426
STARS: CARBON
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We report on the serendipitous discovery of a carbon star near the centre of the low-metallicity globular cluster NGC 6426. We determined its membership and chemical properties using medium-resolution spectra. The radial velocity of -159 km s-1 makes it a member of the cluster. We used photometric data from the literature and the COMARCS stellar atmospheric models to derive its luminosity, effective temperature, surface gravity, metallicity, and approximate C, N and O abundance ratios. According to these properties, we suggest that this star is a genuine carbon-rich low-metallicity asymptotic giant branch star. © 2012 The Authors Monthly Notices of the Royal Astronomical Society © 2012 RAS.
Fil: Sharina, M.. Russian Academy of Sciences. Special Astrophysical Observatory ; Rusia
Fil: Aringer, B.. Universidad de Viena; Austria
Fil: Davoust, E.. Université Fédérale Toulouse Midi-Pyrénées ; Francia
Fil: Kniazev, A.. South African Astronomical Observatory ; Sudáfrica. Lomonosov Moscow State University ; Rusia. Southern African Large Telescope Foundation; Sudáfrica
Fil: Donzelli, Carlos Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
description We report on the serendipitous discovery of a carbon star near the centre of the low-metallicity globular cluster NGC 6426. We determined its membership and chemical properties using medium-resolution spectra. The radial velocity of -159 km s-1 makes it a member of the cluster. We used photometric data from the literature and the COMARCS stellar atmospheric models to derive its luminosity, effective temperature, surface gravity, metallicity, and approximate C, N and O abundance ratios. According to these properties, we suggest that this star is a genuine carbon-rich low-metallicity asymptotic giant branch star. © 2012 The Authors Monthly Notices of the Royal Astronomical Society © 2012 RAS.
publishDate 2012
dc.date.none.fl_str_mv 2012-10
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/11336/190932
Sharina, M.; Aringer, B.; Davoust, E.; Kniazev, A.; Donzelli, Carlos Jose; A CH star in the globular cluster NGC 6426; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society: Letters; 426; 1; 10-2012; 1-6
0035-8711
1745-3933
CONICET Digital
CONICET
url http://hdl.handle.net/11336/190932
identifier_str_mv Sharina, M.; Aringer, B.; Davoust, E.; Kniazev, A.; Donzelli, Carlos Jose; A CH star in the globular cluster NGC 6426; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society: Letters; 426; 1; 10-2012; 1-6
0035-8711
1745-3933
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/j.1745-3933.2012.01317.x/full
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1745-3933.2012.01317.x
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 13.070432

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