First deep search of tidal tails in the Milky Way globular cluster NGC 6362

Autores
Piatti, Andres Eduardo
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
I present results of the analysis of a set of images obtained in the field of the Milky Way globular cluster NGC 6362 using the Dark Energy Camera, which is mounted in the 4.0m Victor Blanco telescope of the Cerro-Tololo Interamerican observatory. The cluster was selected as a science case for deep high-quality photometry because of the controversial observational findings and theoretical predictions on the existence of cluster tidal tails. The collected data allowed us to build an unprecedented deep cluster field color- magnitude diagram, from which I filtered stars to produce a stellar density map, to trace the stellar density variation as a function of the position angle for different concentric annulii centered on the cluster, and to construct a cluster stellar density radial profile. I also built a stellar density map from a synthetic color-magnitude diagram generated from a model of the stellar population distribution in the Milky Way. All the analysis approached converge toward a relatively smooth stellar density between 1 and ∼ 3.8 cluster Jacobi radii, with a slightly difference smaller than 2 times the background stellar density fluctuation between the mean stellar density of the south-eastern and that of north-western hemispheres, the latter being higher. Moreover, the spatial distribution of the recently claimed tidal tail stars agrees well not only with the observed composite star field distribution, but also with the region least affected by interstellar absorption. Nevertheless, I detected a low stellar density excess around the cluster Jacobi radius, from which I conclude that NGC 6362 present a thin extra tidal halo.
Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; Argentina
Materia
CLUSTER
NGC 6362
DARK ENERGY CAMERA
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:11336/233264

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spelling First deep search of tidal tails in the Milky Way globular cluster NGC 6362Piatti, Andres EduardoCLUSTERNGC 6362DARK ENERGY CAMERAhttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1I present results of the analysis of a set of images obtained in the field of the Milky Way globular cluster NGC 6362 using the Dark Energy Camera, which is mounted in the 4.0m Victor Blanco telescope of the Cerro-Tololo Interamerican observatory. The cluster was selected as a science case for deep high-quality photometry because of the controversial observational findings and theoretical predictions on the existence of cluster tidal tails. The collected data allowed us to build an unprecedented deep cluster field color- magnitude diagram, from which I filtered stars to produce a stellar density map, to trace the stellar density variation as a function of the position angle for different concentric annulii centered on the cluster, and to construct a cluster stellar density radial profile. I also built a stellar density map from a synthetic color-magnitude diagram generated from a model of the stellar population distribution in the Milky Way. All the analysis approached converge toward a relatively smooth stellar density between 1 and ∼ 3.8 cluster Jacobi radii, with a slightly difference smaller than 2 times the background stellar density fluctuation between the mean stellar density of the south-eastern and that of north-western hemispheres, the latter being higher. Moreover, the spatial distribution of the recently claimed tidal tail stars agrees well not only with the observed composite star field distribution, but also with the region least affected by interstellar absorption. Nevertheless, I detected a low stellar density excess around the cluster Jacobi radius, from which I conclude that NGC 6362 present a thin extra tidal halo.Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; ArgentinaEDP Sciences2024-01info: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/11336/233264Piatti, Andres Eduardo; First deep search of tidal tails in the Milky Way globular cluster NGC 6362; EDP Sciences; Astronomy and Astrophysics; 683; 1-2024; 1-71432-0746CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2024/03/contents/contents.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202348534info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:51:11Zoai:ri.conicet.gov.ar:11336/233264instacron: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 09:51:11.961CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv First deep search of tidal tails in the Milky Way globular cluster NGC 6362
title First deep search of tidal tails in the Milky Way globular cluster NGC 6362
spellingShingle First deep search of tidal tails in the Milky Way globular cluster NGC 6362
Piatti, Andres Eduardo
CLUSTER
NGC 6362
DARK ENERGY CAMERA
title_short First deep search of tidal tails in the Milky Way globular cluster NGC 6362
title_full First deep search of tidal tails in the Milky Way globular cluster NGC 6362
title_fullStr First deep search of tidal tails in the Milky Way globular cluster NGC 6362
title_full_unstemmed First deep search of tidal tails in the Milky Way globular cluster NGC 6362
title_sort First deep search of tidal tails in the Milky Way globular cluster NGC 6362
dc.creator.none.fl_str_mv Piatti, Andres Eduardo
author Piatti, Andres Eduardo
author_facet Piatti, Andres Eduardo
author_role author
dc.subject.none.fl_str_mv CLUSTER
NGC 6362
DARK ENERGY CAMERA
topic CLUSTER
NGC 6362
DARK ENERGY CAMERA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv I present results of the analysis of a set of images obtained in the field of the Milky Way globular cluster NGC 6362 using the Dark Energy Camera, which is mounted in the 4.0m Victor Blanco telescope of the Cerro-Tololo Interamerican observatory. The cluster was selected as a science case for deep high-quality photometry because of the controversial observational findings and theoretical predictions on the existence of cluster tidal tails. The collected data allowed us to build an unprecedented deep cluster field color- magnitude diagram, from which I filtered stars to produce a stellar density map, to trace the stellar density variation as a function of the position angle for different concentric annulii centered on the cluster, and to construct a cluster stellar density radial profile. I also built a stellar density map from a synthetic color-magnitude diagram generated from a model of the stellar population distribution in the Milky Way. All the analysis approached converge toward a relatively smooth stellar density between 1 and ∼ 3.8 cluster Jacobi radii, with a slightly difference smaller than 2 times the background stellar density fluctuation between the mean stellar density of the south-eastern and that of north-western hemispheres, the latter being higher. Moreover, the spatial distribution of the recently claimed tidal tail stars agrees well not only with the observed composite star field distribution, but also with the region least affected by interstellar absorption. Nevertheless, I detected a low stellar density excess around the cluster Jacobi radius, from which I conclude that NGC 6362 present a thin extra tidal halo.
Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; Argentina
description I present results of the analysis of a set of images obtained in the field of the Milky Way globular cluster NGC 6362 using the Dark Energy Camera, which is mounted in the 4.0m Victor Blanco telescope of the Cerro-Tololo Interamerican observatory. The cluster was selected as a science case for deep high-quality photometry because of the controversial observational findings and theoretical predictions on the existence of cluster tidal tails. The collected data allowed us to build an unprecedented deep cluster field color- magnitude diagram, from which I filtered stars to produce a stellar density map, to trace the stellar density variation as a function of the position angle for different concentric annulii centered on the cluster, and to construct a cluster stellar density radial profile. I also built a stellar density map from a synthetic color-magnitude diagram generated from a model of the stellar population distribution in the Milky Way. All the analysis approached converge toward a relatively smooth stellar density between 1 and ∼ 3.8 cluster Jacobi radii, with a slightly difference smaller than 2 times the background stellar density fluctuation between the mean stellar density of the south-eastern and that of north-western hemispheres, the latter being higher. Moreover, the spatial distribution of the recently claimed tidal tail stars agrees well not only with the observed composite star field distribution, but also with the region least affected by interstellar absorption. Nevertheless, I detected a low stellar density excess around the cluster Jacobi radius, from which I conclude that NGC 6362 present a thin extra tidal halo.
publishDate 2024
dc.date.none.fl_str_mv 2024-01
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/11336/233264
Piatti, Andres Eduardo; First deep search of tidal tails in the Milky Way globular cluster NGC 6362; EDP Sciences; Astronomy and Astrophysics; 683; 1-2024; 1-7
1432-0746
CONICET Digital
CONICET
url http://hdl.handle.net/11336/233264
identifier_str_mv Piatti, Andres Eduardo; First deep search of tidal tails in the Milky Way globular cluster NGC 6362; EDP Sciences; Astronomy and Astrophysics; 683; 1-2024; 1-7
1432-0746
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://www.aanda.org/articles/aa/abs/2024/03/contents/contents.html
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202348534
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 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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