VVVX survey dusts off a new intermediate-age star cluster in the Milky Way disk

Autores
Garro, Elisa; Minniti, Dante; Alonso García, Javier; Fernández Trincado, José; Gómez, Matías; Palma, Tali; Saito, Roberto; Obasi, Casmir
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Context. In the last decade, many new star clusters have been discovered in heavily obscured regions of the Milky Way bulge and disk. Aims. Our primary long-term objective is to seek out additional star clusters in the poorly studied regions of the Milky Way, where detections pose significant challenges. The aim of this pursuit is to finalize the Milky Way’s globular and open cluster system census and to gain a comprehensive understanding of both the formation and evolution of these systems and our Galaxy as a whole. Methods. We report the discovery of a new star cluster, named Garro 03. We investigated this new target using a combination of near-infrared and optical databases. We employed the VISTA Variables in the Via Láctea Survey and Two Micron All Sky Survey data in the near-infrared, and the Gaia Data Release 3 and the DECam Plane Survey datasets in the optical passband. We constructed density maps and vector proper motion diagrams in order to highlight our target. We performed a photometrical analysis in order to derive its main physical parameters. Results. Garro 03 is located at equatorial coordinates RA = 14:01:29.3 and Dec = −65:30:57.0. From our photometric analysis we find that this cluster is not heavily affected by extinction with AKs = 0.25 ± 0.04 mag and AG = 1.54 ± 0.02 mag. It is located at heliocentric distance of 14.1 ± 0.5 kpc, which places Garro 03 at 10.6 kpc from the Galactic centre and Z = −0.89 kpc below the Galactic plane. We also calculated the mean cluster proper motion of (μα*,μδ)=(−4.57 ± 0.29, −1.36 ± 0.27) mas yr−1. We derived an age of 3 Gyr and metallicity [Fe/H] = −0.5 ± 0.2 by the isochrone-fitting method, employing the PARSEC models. The total luminosity was derived in the Ks and V bands, finding MKs = −6.32 ± 1.10 mag and MV = −4.06 mag. Finally, the core and tidal radii were measured constructing the Garro 03 radial density profile and fitting the King model. We obtained rc = 3.07 ± 0.98 pc and rt = 19.36 ± 15.96 pc, respectively. Conclusions. We photometrically confirm the cluster nature for Garro 03, located in the Galactic disk. It is a distant, low-luminosity, metal-rich star cluster of intermediate age. We also searched for possible signatures (streams or bridges) between Garro 03 and Garro 01, but we exclude a companionship with the present analysis. We need spectroscopic data to classify it as an old open cluster or a young globular cluster, and to understand its origin.
Fil: Garro, Elisa. European Southern Observatory Chile; Chile. Universidad Andrés Bello; Chile
Fil: Minniti, Dante. Universidad Andrés Bello; Chile. Universidade Federal de Santa Catarina; Brasil. Vatican Observatory; Italia
Fil: Alonso García, Javier. Universidad de Antofagasta (uantof);
Fil: Fernández Trincado, José. Universidad Católica del Norte; Chile
Fil: Gómez, Matías. Universidad Andrés Bello; Chile
Fil: Palma, Tali. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Saito, Roberto. Vatican Observatory; Italia. Universidade Federal de Santa Catarina; Brasil
Fil: Obasi, Casmir. University of Nigeria; Nigeria
Materia
SURVEYS
GALACTIC
DISK
GLOBULAR CLUSTERS
STELLAR CONTENT
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:11336/253712

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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling VVVX survey dusts off a new intermediate-age star cluster in the Milky Way diskGarro, ElisaMinniti, DanteAlonso García, JavierFernández Trincado, JoséGómez, MatíasPalma, TaliSaito, RobertoObasi, CasmirSURVEYSGALACTICDISKGLOBULAR CLUSTERSSTELLAR CONTENThttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. In the last decade, many new star clusters have been discovered in heavily obscured regions of the Milky Way bulge and disk. Aims. Our primary long-term objective is to seek out additional star clusters in the poorly studied regions of the Milky Way, where detections pose significant challenges. The aim of this pursuit is to finalize the Milky Way’s globular and open cluster system census and to gain a comprehensive understanding of both the formation and evolution of these systems and our Galaxy as a whole. Methods. We report the discovery of a new star cluster, named Garro 03. We investigated this new target using a combination of near-infrared and optical databases. We employed the VISTA Variables in the Via Láctea Survey and Two Micron All Sky Survey data in the near-infrared, and the Gaia Data Release 3 and the DECam Plane Survey datasets in the optical passband. We constructed density maps and vector proper motion diagrams in order to highlight our target. We performed a photometrical analysis in order to derive its main physical parameters. Results. Garro 03 is located at equatorial coordinates RA = 14:01:29.3 and Dec = −65:30:57.0. From our photometric analysis we find that this cluster is not heavily affected by extinction with AKs = 0.25 ± 0.04 mag and AG = 1.54 ± 0.02 mag. It is located at heliocentric distance of 14.1 ± 0.5 kpc, which places Garro 03 at 10.6 kpc from the Galactic centre and Z = −0.89 kpc below the Galactic plane. We also calculated the mean cluster proper motion of (μα*,μδ)=(−4.57 ± 0.29, −1.36 ± 0.27) mas yr−1. We derived an age of 3 Gyr and metallicity [Fe/H] = −0.5 ± 0.2 by the isochrone-fitting method, employing the PARSEC models. The total luminosity was derived in the Ks and V bands, finding MKs = −6.32 ± 1.10 mag and MV = −4.06 mag. Finally, the core and tidal radii were measured constructing the Garro 03 radial density profile and fitting the King model. We obtained rc = 3.07 ± 0.98 pc and rt = 19.36 ± 15.96 pc, respectively. Conclusions. We photometrically confirm the cluster nature for Garro 03, located in the Galactic disk. It is a distant, low-luminosity, metal-rich star cluster of intermediate age. We also searched for possible signatures (streams or bridges) between Garro 03 and Garro 01, but we exclude a companionship with the present analysis. We need spectroscopic data to classify it as an old open cluster or a young globular cluster, and to understand its origin.Fil: Garro, Elisa. European Southern Observatory Chile; Chile. Universidad Andrés Bello; ChileFil: Minniti, Dante. Universidad Andrés Bello; Chile. Universidade Federal de Santa Catarina; Brasil. Vatican Observatory; ItaliaFil: Alonso García, Javier. Universidad de Antofagasta (uantof);Fil: Fernández Trincado, José. Universidad Católica del Norte; ChileFil: Gómez, Matías. Universidad Andrés Bello; ChileFil: Palma, Tali. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; ArgentinaFil: Saito, Roberto. Vatican Observatory; Italia. Universidade Federal de Santa Catarina; BrasilFil: Obasi, Casmir. University of Nigeria; NigeriaEDP Sciences2024-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/253712Garro, Elisa; Minniti, Dante; Alonso García, Javier; Fernández Trincado, José; Gómez, Matías; et al.; VVVX survey dusts off a new intermediate-age star cluster in the Milky Way disk; EDP Sciences; Astronomy and Astrophysics; 688; L3; 7-2024; 1-110004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202450870info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2024/08/aa50870-24/aa50870-24.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:46:28Zoai:ri.conicet.gov.ar:11336/253712instacron: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 09:46:29.144CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv VVVX survey dusts off a new intermediate-age star cluster in the Milky Way disk
title VVVX survey dusts off a new intermediate-age star cluster in the Milky Way disk
spellingShingle VVVX survey dusts off a new intermediate-age star cluster in the Milky Way disk
Garro, Elisa
SURVEYS
GALACTIC
DISK
GLOBULAR CLUSTERS
STELLAR CONTENT
title_short VVVX survey dusts off a new intermediate-age star cluster in the Milky Way disk
title_full VVVX survey dusts off a new intermediate-age star cluster in the Milky Way disk
title_fullStr VVVX survey dusts off a new intermediate-age star cluster in the Milky Way disk
title_full_unstemmed VVVX survey dusts off a new intermediate-age star cluster in the Milky Way disk
title_sort VVVX survey dusts off a new intermediate-age star cluster in the Milky Way disk
dc.creator.none.fl_str_mv Garro, Elisa
Minniti, Dante
Alonso García, Javier
Fernández Trincado, José
Gómez, Matías
Palma, Tali
Saito, Roberto
Obasi, Casmir
author Garro, Elisa
author_facet Garro, Elisa
Minniti, Dante
Alonso García, Javier
Fernández Trincado, José
Gómez, Matías
Palma, Tali
Saito, Roberto
Obasi, Casmir
author_role author
author2 Minniti, Dante
Alonso García, Javier
Fernández Trincado, José
Gómez, Matías
Palma, Tali
Saito, Roberto
Obasi, Casmir
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv SURVEYS
GALACTIC
DISK
GLOBULAR CLUSTERS
STELLAR CONTENT
topic SURVEYS
GALACTIC
DISK
GLOBULAR CLUSTERS
STELLAR CONTENT
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Context. In the last decade, many new star clusters have been discovered in heavily obscured regions of the Milky Way bulge and disk. Aims. Our primary long-term objective is to seek out additional star clusters in the poorly studied regions of the Milky Way, where detections pose significant challenges. The aim of this pursuit is to finalize the Milky Way’s globular and open cluster system census and to gain a comprehensive understanding of both the formation and evolution of these systems and our Galaxy as a whole. Methods. We report the discovery of a new star cluster, named Garro 03. We investigated this new target using a combination of near-infrared and optical databases. We employed the VISTA Variables in the Via Láctea Survey and Two Micron All Sky Survey data in the near-infrared, and the Gaia Data Release 3 and the DECam Plane Survey datasets in the optical passband. We constructed density maps and vector proper motion diagrams in order to highlight our target. We performed a photometrical analysis in order to derive its main physical parameters. Results. Garro 03 is located at equatorial coordinates RA = 14:01:29.3 and Dec = −65:30:57.0. From our photometric analysis we find that this cluster is not heavily affected by extinction with AKs = 0.25 ± 0.04 mag and AG = 1.54 ± 0.02 mag. It is located at heliocentric distance of 14.1 ± 0.5 kpc, which places Garro 03 at 10.6 kpc from the Galactic centre and Z = −0.89 kpc below the Galactic plane. We also calculated the mean cluster proper motion of (μα*,μδ)=(−4.57 ± 0.29, −1.36 ± 0.27) mas yr−1. We derived an age of 3 Gyr and metallicity [Fe/H] = −0.5 ± 0.2 by the isochrone-fitting method, employing the PARSEC models. The total luminosity was derived in the Ks and V bands, finding MKs = −6.32 ± 1.10 mag and MV = −4.06 mag. Finally, the core and tidal radii were measured constructing the Garro 03 radial density profile and fitting the King model. We obtained rc = 3.07 ± 0.98 pc and rt = 19.36 ± 15.96 pc, respectively. Conclusions. We photometrically confirm the cluster nature for Garro 03, located in the Galactic disk. It is a distant, low-luminosity, metal-rich star cluster of intermediate age. We also searched for possible signatures (streams or bridges) between Garro 03 and Garro 01, but we exclude a companionship with the present analysis. We need spectroscopic data to classify it as an old open cluster or a young globular cluster, and to understand its origin.
Fil: Garro, Elisa. European Southern Observatory Chile; Chile. Universidad Andrés Bello; Chile
Fil: Minniti, Dante. Universidad Andrés Bello; Chile. Universidade Federal de Santa Catarina; Brasil. Vatican Observatory; Italia
Fil: Alonso García, Javier. Universidad de Antofagasta (uantof);
Fil: Fernández Trincado, José. Universidad Católica del Norte; Chile
Fil: Gómez, Matías. Universidad Andrés Bello; Chile
Fil: Palma, Tali. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Saito, Roberto. Vatican Observatory; Italia. Universidade Federal de Santa Catarina; Brasil
Fil: Obasi, Casmir. University of Nigeria; Nigeria
description Context. In the last decade, many new star clusters have been discovered in heavily obscured regions of the Milky Way bulge and disk. Aims. Our primary long-term objective is to seek out additional star clusters in the poorly studied regions of the Milky Way, where detections pose significant challenges. The aim of this pursuit is to finalize the Milky Way’s globular and open cluster system census and to gain a comprehensive understanding of both the formation and evolution of these systems and our Galaxy as a whole. Methods. We report the discovery of a new star cluster, named Garro 03. We investigated this new target using a combination of near-infrared and optical databases. We employed the VISTA Variables in the Via Láctea Survey and Two Micron All Sky Survey data in the near-infrared, and the Gaia Data Release 3 and the DECam Plane Survey datasets in the optical passband. We constructed density maps and vector proper motion diagrams in order to highlight our target. We performed a photometrical analysis in order to derive its main physical parameters. Results. Garro 03 is located at equatorial coordinates RA = 14:01:29.3 and Dec = −65:30:57.0. From our photometric analysis we find that this cluster is not heavily affected by extinction with AKs = 0.25 ± 0.04 mag and AG = 1.54 ± 0.02 mag. It is located at heliocentric distance of 14.1 ± 0.5 kpc, which places Garro 03 at 10.6 kpc from the Galactic centre and Z = −0.89 kpc below the Galactic plane. We also calculated the mean cluster proper motion of (μα*,μδ)=(−4.57 ± 0.29, −1.36 ± 0.27) mas yr−1. We derived an age of 3 Gyr and metallicity [Fe/H] = −0.5 ± 0.2 by the isochrone-fitting method, employing the PARSEC models. The total luminosity was derived in the Ks and V bands, finding MKs = −6.32 ± 1.10 mag and MV = −4.06 mag. Finally, the core and tidal radii were measured constructing the Garro 03 radial density profile and fitting the King model. We obtained rc = 3.07 ± 0.98 pc and rt = 19.36 ± 15.96 pc, respectively. Conclusions. We photometrically confirm the cluster nature for Garro 03, located in the Galactic disk. It is a distant, low-luminosity, metal-rich star cluster of intermediate age. We also searched for possible signatures (streams or bridges) between Garro 03 and Garro 01, but we exclude a companionship with the present analysis. We need spectroscopic data to classify it as an old open cluster or a young globular cluster, and to understand its origin.
publishDate 2024
dc.date.none.fl_str_mv 2024-07
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/11336/253712
Garro, Elisa; Minniti, Dante; Alonso García, Javier; Fernández Trincado, José; Gómez, Matías; et al.; VVVX survey dusts off a new intermediate-age star cluster in the Milky Way disk; EDP Sciences; Astronomy and Astrophysics; 688; L3; 7-2024; 1-11
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/253712
identifier_str_mv Garro, Elisa; Minniti, Dante; Alonso García, Javier; Fernández Trincado, José; Gómez, Matías; et al.; VVVX survey dusts off a new intermediate-age star cluster in the Milky Way disk; EDP Sciences; Astronomy and Astrophysics; 688; L3; 7-2024; 1-11
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202450870
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2024/08/aa50870-24/aa50870-24.html
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
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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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