Metallicity estimates of young clusters in the Magellanic Clouds from Strömgren photometry of supergiant stars

Autores
Piatti, Andres Eduardo; Pietrzynski, Grzegorz; Narloch, Weronika; Górski, Marek; Graczyk, Dariusz
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present results obtained from Stromgren photometry of 13 young (~ 30-220 Myr) Magellanic Cloud (MC) clusters, most of them lacking in the literature from direct metallicity measurements. We derived for them [Fe/H] values from a high-dispersion spectroscopy-based empirical calibration of the Stromgren metallicity sensitive index m1 for yellow and red supergiants (SGs).  Particular care was given while estimating their respective uncertainties. In order toobtain the mean cluster metallicities, we used [Fe/H] values of selected SGs for which we required to be located within the cluster radii, placed in the expected SG region in the clustercolour-magnitude diagrams, and with [Fe/H] values within the FWHM of the observed cluster metallicitydistributions. The resulting metallicities for nearly 75 per cent of the cluster sample agree well with the most frequently used values of the mean MCs´ present-day metallicities.The remaining clusters have mean [Fe/H] values that fall near the edge of the MC present-daymetallicity distributions.  When comparing the cluster metallicities with their present positions, we found evidence that supports the claimed recent interaction of the MCs with the Milky Way, that could have caused that some clusters were scattered from their birthplaces. Indeed, we show examples of clusters with metal contents typical of the galaxy innerregions placed outward them. Like wise, we found young clusters, at present located in the inner regions of both MCs, formed out of gas that has remained unmixed since several Gyr ago.
Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Pietrzynski, Grzegorz. Nicolaus Copernicus Astronomical Center; Polonia
Fil: Narloch, Weronika. Universidad de Concepción; Chile
Fil: Górski, Marek. Universidad de Concepción; Chile
Fil: Graczyk, Dariusz. Millennium Institute of Astrophysics; Chile
Materia
CLUSTERS
MAGELLANIC CLOUDS
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:11336/112327
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Metallicity estimates of young clusters in the Magellanic Clouds from Strömgren photometry of supergiant starsPiatti, Andres EduardoPietrzynski, GrzegorzNarloch, WeronikaGórski, MarekGraczyk, DariuszCLUSTERSMAGELLANIC CLOUDShttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1We present results obtained from Stromgren photometry of 13 young (~ 30-220 Myr) Magellanic Cloud (MC) clusters, most of them lacking in the literature from direct metallicity measurements. We derived for them [Fe/H] values from a high-dispersion spectroscopy-based empirical calibration of the Stromgren metallicity sensitive index m1 for yellow and red supergiants (SGs).  Particular care was given while estimating their respective uncertainties. In order toobtain the mean cluster metallicities, we used [Fe/H] values of selected SGs for which we required to be located within the cluster radii, placed in the expected SG region in the clustercolour-magnitude diagrams, and with [Fe/H] values within the FWHM of the observed cluster metallicitydistributions. The resulting metallicities for nearly 75 per cent of the cluster sample agree well with the most frequently used values of the mean MCs´ present-day metallicities.The remaining clusters have mean [Fe/H] values that fall near the edge of the MC present-daymetallicity distributions.  When comparing the cluster metallicities with their present positions, we found evidence that supports the claimed recent interaction of the MCs with the Milky Way, that could have caused that some clusters were scattered from their birthplaces. Indeed, we show examples of clusters with metal contents typical of the galaxy innerregions placed outward them. Like wise, we found young clusters, at present located in the inner regions of both MCs, formed out of gas that has remained unmixed since several Gyr ago.Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaFil: Pietrzynski, Grzegorz. Nicolaus Copernicus Astronomical Center; PoloniaFil: Narloch, Weronika. Universidad de Concepción; ChileFil: Górski, Marek. Universidad de Concepción; ChileFil: Graczyk, Dariusz. Millennium Institute of Astrophysics; ChileWiley Blackwell Publishing, Inc2019-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/112327Piatti, Andres Eduardo; Pietrzynski, Grzegorz; Narloch, Weronika; Górski, Marek; Graczyk, Dariusz; Metallicity estimates of young clusters in the Magellanic Clouds from Strömgren photometry of supergiant stars; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 483; 4; 3-2019; 4766-47730035-87111365-2966CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/sty3473info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/483/4/4766/5257849info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:07:56Zoai:ri.conicet.gov.ar:11336/112327instacron: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 10:07:56.725CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Metallicity estimates of young clusters in the Magellanic Clouds from Strömgren photometry of supergiant stars
title Metallicity estimates of young clusters in the Magellanic Clouds from Strömgren photometry of supergiant stars
spellingShingle Metallicity estimates of young clusters in the Magellanic Clouds from Strömgren photometry of supergiant stars
Piatti, Andres Eduardo
CLUSTERS
MAGELLANIC CLOUDS
title_short Metallicity estimates of young clusters in the Magellanic Clouds from Strömgren photometry of supergiant stars
title_full Metallicity estimates of young clusters in the Magellanic Clouds from Strömgren photometry of supergiant stars
title_fullStr Metallicity estimates of young clusters in the Magellanic Clouds from Strömgren photometry of supergiant stars
title_full_unstemmed Metallicity estimates of young clusters in the Magellanic Clouds from Strömgren photometry of supergiant stars
title_sort Metallicity estimates of young clusters in the Magellanic Clouds from Strömgren photometry of supergiant stars
dc.creator.none.fl_str_mv Piatti, Andres Eduardo
Pietrzynski, Grzegorz
Narloch, Weronika
Górski, Marek
Graczyk, Dariusz
author Piatti, Andres Eduardo
author_facet Piatti, Andres Eduardo
Pietrzynski, Grzegorz
Narloch, Weronika
Górski, Marek
Graczyk, Dariusz
author_role author
author2 Pietrzynski, Grzegorz
Narloch, Weronika
Górski, Marek
Graczyk, Dariusz
author2_role author
author
author
author
dc.subject.none.fl_str_mv CLUSTERS
MAGELLANIC CLOUDS
topic CLUSTERS
MAGELLANIC CLOUDS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present results obtained from Stromgren photometry of 13 young (~ 30-220 Myr) Magellanic Cloud (MC) clusters, most of them lacking in the literature from direct metallicity measurements. We derived for them [Fe/H] values from a high-dispersion spectroscopy-based empirical calibration of the Stromgren metallicity sensitive index m1 for yellow and red supergiants (SGs).  Particular care was given while estimating their respective uncertainties. In order toobtain the mean cluster metallicities, we used [Fe/H] values of selected SGs for which we required to be located within the cluster radii, placed in the expected SG region in the clustercolour-magnitude diagrams, and with [Fe/H] values within the FWHM of the observed cluster metallicitydistributions. The resulting metallicities for nearly 75 per cent of the cluster sample agree well with the most frequently used values of the mean MCs´ present-day metallicities.The remaining clusters have mean [Fe/H] values that fall near the edge of the MC present-daymetallicity distributions.  When comparing the cluster metallicities with their present positions, we found evidence that supports the claimed recent interaction of the MCs with the Milky Way, that could have caused that some clusters were scattered from their birthplaces. Indeed, we show examples of clusters with metal contents typical of the galaxy innerregions placed outward them. Like wise, we found young clusters, at present located in the inner regions of both MCs, formed out of gas that has remained unmixed since several Gyr ago.
Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Pietrzynski, Grzegorz. Nicolaus Copernicus Astronomical Center; Polonia
Fil: Narloch, Weronika. Universidad de Concepción; Chile
Fil: Górski, Marek. Universidad de Concepción; Chile
Fil: Graczyk, Dariusz. Millennium Institute of Astrophysics; Chile
description We present results obtained from Stromgren photometry of 13 young (~ 30-220 Myr) Magellanic Cloud (MC) clusters, most of them lacking in the literature from direct metallicity measurements. We derived for them [Fe/H] values from a high-dispersion spectroscopy-based empirical calibration of the Stromgren metallicity sensitive index m1 for yellow and red supergiants (SGs).  Particular care was given while estimating their respective uncertainties. In order toobtain the mean cluster metallicities, we used [Fe/H] values of selected SGs for which we required to be located within the cluster radii, placed in the expected SG region in the clustercolour-magnitude diagrams, and with [Fe/H] values within the FWHM of the observed cluster metallicitydistributions. The resulting metallicities for nearly 75 per cent of the cluster sample agree well with the most frequently used values of the mean MCs´ present-day metallicities.The remaining clusters have mean [Fe/H] values that fall near the edge of the MC present-daymetallicity distributions.  When comparing the cluster metallicities with their present positions, we found evidence that supports the claimed recent interaction of the MCs with the Milky Way, that could have caused that some clusters were scattered from their birthplaces. Indeed, we show examples of clusters with metal contents typical of the galaxy innerregions placed outward them. Like wise, we found young clusters, at present located in the inner regions of both MCs, formed out of gas that has remained unmixed since several Gyr ago.
publishDate 2019
dc.date.none.fl_str_mv 2019-03
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/11336/112327
Piatti, Andres Eduardo; Pietrzynski, Grzegorz; Narloch, Weronika; Górski, Marek; Graczyk, Dariusz; Metallicity estimates of young clusters in the Magellanic Clouds from Strömgren photometry of supergiant stars; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 483; 4; 3-2019; 4766-4773
0035-8711
1365-2966
CONICET Digital
CONICET
url http://hdl.handle.net/11336/112327
identifier_str_mv Piatti, Andres Eduardo; Pietrzynski, Grzegorz; Narloch, Weronika; Górski, Marek; Graczyk, Dariusz; Metallicity estimates of young clusters in the Magellanic Clouds from Strömgren photometry of supergiant stars; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 483; 4; 3-2019; 4766-4773
0035-8711
1365-2966
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/sty3473
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/483/4/4766/5257849
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 13.069144

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