Ages of Large Magellanic Cloud Star Clusters with Gemini Multi-Object Spectrograph Integrated Spectroscopy: Systematic Comparison of Available Tools

Autores
Tapia Reina, Martina Irina; Asa'd, Randa; Ahumada, Andrea Veronica; Gonzalo Díaz, Carlos
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present the first systematic analysis comparing the ages, reddening, and radial velocities of star clusters using two widely used tools: STARLIGHT and Analyzer of Spectra for Age Determination (A.S.A.D). Both tools utilize the full integrated spectrum fitting technique but they use different approaches in calculating the parameters. We find that there is a good agreement between the parameters derived by the two tools and confirm that both tools provide consistent results with the literature parameters obtained from resolved photometry. We note that for optimal age and reddening estimates, observed integrated spectra should have signal-to-noise ratio (S/N) > 10when using A.S.A.D and the combination of the single stellar populations should be added linearly (not using logarithmic values) when using STARLIGHT . We also show that the deviation of the radial velocity estimates between the two tools depends on the S/N of the observed integrated spectrum and demonstrate that when varying the metallicity, the age estimates of STARLIGHT are not affected significantly, while the results of A.S.A.D are generally underestimated. As more observational data become available through modern instruments, the strengths and limitations of each available automated tool need to be taken in consideration when interpreting their results.
Fil: Tapia Reina, Martina Irina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Asa'd, Randa. American University Of Sharjah; Emiratos Árabes Unidos
Fil: Ahumada, Andrea Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Gonzalo Díaz, Carlos. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Materia
STAR CLUSTERS
SPECTROSCOPY
MAGELLANIC CLOUDS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/272996
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Ages of Large Magellanic Cloud Star Clusters with Gemini Multi-Object Spectrograph Integrated Spectroscopy: Systematic Comparison of Available ToolsTapia Reina, Martina IrinaAsa'd, RandaAhumada, Andrea VeronicaGonzalo Díaz, CarlosSTAR CLUSTERSSPECTROSCOPYMAGELLANIC CLOUDShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present the first systematic analysis comparing the ages, reddening, and radial velocities of star clusters using two widely used tools: STARLIGHT and Analyzer of Spectra for Age Determination (A.S.A.D). Both tools utilize the full integrated spectrum fitting technique but they use different approaches in calculating the parameters. We find that there is a good agreement between the parameters derived by the two tools and confirm that both tools provide consistent results with the literature parameters obtained from resolved photometry. We note that for optimal age and reddening estimates, observed integrated spectra should have signal-to-noise ratio (S/N) > 10when using A.S.A.D and the combination of the single stellar populations should be added linearly (not using logarithmic values) when using STARLIGHT . We also show that the deviation of the radial velocity estimates between the two tools depends on the S/N of the observed integrated spectrum and demonstrate that when varying the metallicity, the age estimates of STARLIGHT are not affected significantly, while the results of A.S.A.D are generally underestimated. As more observational data become available through modern instruments, the strengths and limitations of each available automated tool need to be taken in consideration when interpreting their results.Fil: Tapia Reina, Martina Irina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaFil: Asa'd, Randa. American University Of Sharjah; Emiratos Árabes UnidosFil: Ahumada, Andrea Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaFil: Gonzalo Díaz, Carlos. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaIOP Publishing2025-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/272996Tapia Reina, Martina Irina; Asa'd, Randa; Ahumada, Andrea Veronica; Gonzalo Díaz, Carlos; Ages of Large Magellanic Cloud Star Clusters with Gemini Multi-Object Spectrograph Integrated Spectroscopy: Systematic Comparison of Available Tools; IOP Publishing; Astronomical Journal; 170; 2; 7-2025; 92-1090004-6256CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-3881/ade703info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-3881/ade703info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:02:00Zoai:ri.conicet.gov.ar:11336/272996instacron: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:34982025-10-22 12:02:01.12CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ages of Large Magellanic Cloud Star Clusters with Gemini Multi-Object Spectrograph Integrated Spectroscopy: Systematic Comparison of Available Tools
title Ages of Large Magellanic Cloud Star Clusters with Gemini Multi-Object Spectrograph Integrated Spectroscopy: Systematic Comparison of Available Tools
spellingShingle Ages of Large Magellanic Cloud Star Clusters with Gemini Multi-Object Spectrograph Integrated Spectroscopy: Systematic Comparison of Available Tools
Tapia Reina, Martina Irina
STAR CLUSTERS
SPECTROSCOPY
MAGELLANIC CLOUDS
title_short Ages of Large Magellanic Cloud Star Clusters with Gemini Multi-Object Spectrograph Integrated Spectroscopy: Systematic Comparison of Available Tools
title_full Ages of Large Magellanic Cloud Star Clusters with Gemini Multi-Object Spectrograph Integrated Spectroscopy: Systematic Comparison of Available Tools
title_fullStr Ages of Large Magellanic Cloud Star Clusters with Gemini Multi-Object Spectrograph Integrated Spectroscopy: Systematic Comparison of Available Tools
title_full_unstemmed Ages of Large Magellanic Cloud Star Clusters with Gemini Multi-Object Spectrograph Integrated Spectroscopy: Systematic Comparison of Available Tools
title_sort Ages of Large Magellanic Cloud Star Clusters with Gemini Multi-Object Spectrograph Integrated Spectroscopy: Systematic Comparison of Available Tools
dc.creator.none.fl_str_mv Tapia Reina, Martina Irina
Asa'd, Randa
Ahumada, Andrea Veronica
Gonzalo Díaz, Carlos
author Tapia Reina, Martina Irina
author_facet Tapia Reina, Martina Irina
Asa'd, Randa
Ahumada, Andrea Veronica
Gonzalo Díaz, Carlos
author_role author
author2 Asa'd, Randa
Ahumada, Andrea Veronica
Gonzalo Díaz, Carlos
author2_role author
author
author
dc.subject.none.fl_str_mv STAR CLUSTERS
SPECTROSCOPY
MAGELLANIC CLOUDS
topic STAR CLUSTERS
SPECTROSCOPY
MAGELLANIC CLOUDS
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 present the first systematic analysis comparing the ages, reddening, and radial velocities of star clusters using two widely used tools: STARLIGHT and Analyzer of Spectra for Age Determination (A.S.A.D). Both tools utilize the full integrated spectrum fitting technique but they use different approaches in calculating the parameters. We find that there is a good agreement between the parameters derived by the two tools and confirm that both tools provide consistent results with the literature parameters obtained from resolved photometry. We note that for optimal age and reddening estimates, observed integrated spectra should have signal-to-noise ratio (S/N) > 10when using A.S.A.D and the combination of the single stellar populations should be added linearly (not using logarithmic values) when using STARLIGHT . We also show that the deviation of the radial velocity estimates between the two tools depends on the S/N of the observed integrated spectrum and demonstrate that when varying the metallicity, the age estimates of STARLIGHT are not affected significantly, while the results of A.S.A.D are generally underestimated. As more observational data become available through modern instruments, the strengths and limitations of each available automated tool need to be taken in consideration when interpreting their results.
Fil: Tapia Reina, Martina Irina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Asa'd, Randa. American University Of Sharjah; Emiratos Árabes Unidos
Fil: Ahumada, Andrea Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Gonzalo Díaz, Carlos. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
description We present the first systematic analysis comparing the ages, reddening, and radial velocities of star clusters using two widely used tools: STARLIGHT and Analyzer of Spectra for Age Determination (A.S.A.D). Both tools utilize the full integrated spectrum fitting technique but they use different approaches in calculating the parameters. We find that there is a good agreement between the parameters derived by the two tools and confirm that both tools provide consistent results with the literature parameters obtained from resolved photometry. We note that for optimal age and reddening estimates, observed integrated spectra should have signal-to-noise ratio (S/N) > 10when using A.S.A.D and the combination of the single stellar populations should be added linearly (not using logarithmic values) when using STARLIGHT . We also show that the deviation of the radial velocity estimates between the two tools depends on the S/N of the observed integrated spectrum and demonstrate that when varying the metallicity, the age estimates of STARLIGHT are not affected significantly, while the results of A.S.A.D are generally underestimated. As more observational data become available through modern instruments, the strengths and limitations of each available automated tool need to be taken in consideration when interpreting their results.
publishDate 2025
dc.date.none.fl_str_mv 2025-07
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/11336/272996
Tapia Reina, Martina Irina; Asa'd, Randa; Ahumada, Andrea Veronica; Gonzalo Díaz, Carlos; Ages of Large Magellanic Cloud Star Clusters with Gemini Multi-Object Spectrograph Integrated Spectroscopy: Systematic Comparison of Available Tools; IOP Publishing; Astronomical Journal; 170; 2; 7-2025; 92-109
0004-6256
CONICET Digital
CONICET
url http://hdl.handle.net/11336/272996
identifier_str_mv Tapia Reina, Martina Irina; Asa'd, Randa; Ahumada, Andrea Veronica; Gonzalo Díaz, Carlos; Ages of Large Magellanic Cloud Star Clusters with Gemini Multi-Object Spectrograph Integrated Spectroscopy: Systematic Comparison of Available Tools; IOP Publishing; Astronomical Journal; 170; 2; 7-2025; 92-109
0004-6256
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://iopscience.iop.org/article/10.3847/1538-3881/ade703
info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-3881/ade703
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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
_version_ 1846782354729730048
score 12.982451

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