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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/233264
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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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13.070432 |