Searching for globular clusters in the inner halo of the Circinus galaxy

Autores
Obasi, C.; Gómez, M.; Minniti, D.; Baravalle, Laura Daniela; Alonso, Maria Victoria; Okere, B. I.
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this study, we search for Globular Clusters (GCs) in the inner halo of the Circinus galaxy using a combination of observational data. Our dataset includes observations from the VISTA Variables in the Vía Láctea Extended Survey (VVVX), optical data from Gaia Release 3 (DR3), and observations from the Dark Energy Camera (DECam). These multiple data sources provide a comprehensive basis for our analysis. Our search was concentrated within a 50 kpc radius from the centre, leading to theidentification of 93 sources that met our established criteria. To ensure the reliability of our findings, we conducted multiple examinations for sample contamination. These examinations incorporated tests based on Gaia Astrometric Excess Noise (AEN), the Blue Photometer (BP)/Red Photometer (RP) Excess Factor (BRexcess), as well as comparisons with stellar population models. This analysis confidently classified 41 sources as genuine GCs, as they successfully passed both the 3 Gaia AEN and BRexcess tests. We used the ISHAPE program to determine the structural parameters (half-light radii) of the GC candidates, with a peak effective radius of 4± 0.5 pc. The catalogue mainly consists of bright GCs. Relationships between colour, size, and distance were found in the GC candidates, alongside confirmation of bi-modality in colour distributions.
Fil: Obasi, C.. Universidad Andrés Bello; Chile
Fil: Gómez, M.. Universidad Andrés Bello; Chile
Fil: Minniti, D.. Universidad Andrés Bello; Chile
Fil: Baravalle, Laura Daniela. 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
Fil: Alonso, Maria Victoria. 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
Fil: Okere, B. I.. University of Nigeria; Nigeria
Materia
CIRCINUS GALAXY
GLOBULAR CLUSTER
INNER AND OUTER HALO
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:11336/256965
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Searching for globular clusters in the inner halo of the Circinus galaxyObasi, C.Gómez, M.Minniti, D.Baravalle, Laura DanielaAlonso, Maria VictoriaOkere, B. I.CIRCINUS GALAXYGLOBULAR CLUSTERINNER AND OUTER HALOhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In this study, we search for Globular Clusters (GCs) in the inner halo of the Circinus galaxy using a combination of observational data. Our dataset includes observations from the VISTA Variables in the Vía Láctea Extended Survey (VVVX), optical data from Gaia Release 3 (DR3), and observations from the Dark Energy Camera (DECam). These multiple data sources provide a comprehensive basis for our analysis. Our search was concentrated within a 50 kpc radius from the centre, leading to theidentification of 93 sources that met our established criteria. To ensure the reliability of our findings, we conducted multiple examinations for sample contamination. These examinations incorporated tests based on Gaia Astrometric Excess Noise (AEN), the Blue Photometer (BP)/Red Photometer (RP) Excess Factor (BRexcess), as well as comparisons with stellar population models. This analysis confidently classified 41 sources as genuine GCs, as they successfully passed both the 3 Gaia AEN and BRexcess tests. We used the ISHAPE program to determine the structural parameters (half-light radii) of the GC candidates, with a peak effective radius of 4± 0.5 pc. The catalogue mainly consists of bright GCs. Relationships between colour, size, and distance were found in the GC candidates, alongside confirmation of bi-modality in colour distributions.Fil: Obasi, C.. Universidad Andrés Bello; ChileFil: Gómez, M.. Universidad Andrés Bello; ChileFil: Minniti, D.. Universidad Andrés Bello; ChileFil: Baravalle, Laura Daniela. 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; ArgentinaFil: Alonso, Maria Victoria. 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; ArgentinaFil: Okere, B. I.. University of Nigeria; NigeriaWiley Blackwell Publishing, Inc2024-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/256965Obasi, C.; Gómez, M.; Minniti, D.; Baravalle, Laura Daniela; Alonso, Maria Victoria; et al.; Searching for globular clusters in the inner halo of the Circinus galaxy; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 529; 3; 3-2024; 3075-30880035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stae688/7624223info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stae688info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:10:36Zoai:ri.conicet.gov.ar:11336/256965instacron: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 11:10:37.047CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Searching for globular clusters in the inner halo of the Circinus galaxy
title Searching for globular clusters in the inner halo of the Circinus galaxy
spellingShingle Searching for globular clusters in the inner halo of the Circinus galaxy
Obasi, C.
CIRCINUS GALAXY
GLOBULAR CLUSTER
INNER AND OUTER HALO
title_short Searching for globular clusters in the inner halo of the Circinus galaxy
title_full Searching for globular clusters in the inner halo of the Circinus galaxy
title_fullStr Searching for globular clusters in the inner halo of the Circinus galaxy
title_full_unstemmed Searching for globular clusters in the inner halo of the Circinus galaxy
title_sort Searching for globular clusters in the inner halo of the Circinus galaxy
dc.creator.none.fl_str_mv Obasi, C.
Gómez, M.
Minniti, D.
Baravalle, Laura Daniela
Alonso, Maria Victoria
Okere, B. I.
author Obasi, C.
author_facet Obasi, C.
Gómez, M.
Minniti, D.
Baravalle, Laura Daniela
Alonso, Maria Victoria
Okere, B. I.
author_role author
author2 Gómez, M.
Minniti, D.
Baravalle, Laura Daniela
Alonso, Maria Victoria
Okere, B. I.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv CIRCINUS GALAXY
GLOBULAR CLUSTER
INNER AND OUTER HALO
topic CIRCINUS GALAXY
GLOBULAR CLUSTER
INNER AND OUTER HALO
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this study, we search for Globular Clusters (GCs) in the inner halo of the Circinus galaxy using a combination of observational data. Our dataset includes observations from the VISTA Variables in the Vía Láctea Extended Survey (VVVX), optical data from Gaia Release 3 (DR3), and observations from the Dark Energy Camera (DECam). These multiple data sources provide a comprehensive basis for our analysis. Our search was concentrated within a 50 kpc radius from the centre, leading to theidentification of 93 sources that met our established criteria. To ensure the reliability of our findings, we conducted multiple examinations for sample contamination. These examinations incorporated tests based on Gaia Astrometric Excess Noise (AEN), the Blue Photometer (BP)/Red Photometer (RP) Excess Factor (BRexcess), as well as comparisons with stellar population models. This analysis confidently classified 41 sources as genuine GCs, as they successfully passed both the 3 Gaia AEN and BRexcess tests. We used the ISHAPE program to determine the structural parameters (half-light radii) of the GC candidates, with a peak effective radius of 4± 0.5 pc. The catalogue mainly consists of bright GCs. Relationships between colour, size, and distance were found in the GC candidates, alongside confirmation of bi-modality in colour distributions.
Fil: Obasi, C.. Universidad Andrés Bello; Chile
Fil: Gómez, M.. Universidad Andrés Bello; Chile
Fil: Minniti, D.. Universidad Andrés Bello; Chile
Fil: Baravalle, Laura Daniela. 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
Fil: Alonso, Maria Victoria. 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
Fil: Okere, B. I.. University of Nigeria; Nigeria
description In this study, we search for Globular Clusters (GCs) in the inner halo of the Circinus galaxy using a combination of observational data. Our dataset includes observations from the VISTA Variables in the Vía Láctea Extended Survey (VVVX), optical data from Gaia Release 3 (DR3), and observations from the Dark Energy Camera (DECam). These multiple data sources provide a comprehensive basis for our analysis. Our search was concentrated within a 50 kpc radius from the centre, leading to theidentification of 93 sources that met our established criteria. To ensure the reliability of our findings, we conducted multiple examinations for sample contamination. These examinations incorporated tests based on Gaia Astrometric Excess Noise (AEN), the Blue Photometer (BP)/Red Photometer (RP) Excess Factor (BRexcess), as well as comparisons with stellar population models. This analysis confidently classified 41 sources as genuine GCs, as they successfully passed both the 3 Gaia AEN and BRexcess tests. We used the ISHAPE program to determine the structural parameters (half-light radii) of the GC candidates, with a peak effective radius of 4± 0.5 pc. The catalogue mainly consists of bright GCs. Relationships between colour, size, and distance were found in the GC candidates, alongside confirmation of bi-modality in colour distributions.
publishDate 2024
dc.date.none.fl_str_mv 2024-03
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/11336/256965
Obasi, C.; Gómez, M.; Minniti, D.; Baravalle, Laura Daniela; Alonso, Maria Victoria; et al.; Searching for globular clusters in the inner halo of the Circinus galaxy; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 529; 3; 3-2024; 3075-3088
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/256965
identifier_str_mv Obasi, C.; Gómez, M.; Minniti, D.; Baravalle, Laura Daniela; Alonso, Maria Victoria; et al.; Searching for globular clusters in the inner halo of the Circinus galaxy; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 529; 3; 3-2024; 3075-3088
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/advance-article/doi/10.1093/mnras/stae688/7624223
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stae688
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
_version_ 1846781468815130624
score 12.982451

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