The elusive tidal tails of the Milky Way globular cluster NGC 7099

Autores
Piatti, Andres Eduardo; Carballo Bello, Julio A.; Mora, Marcelo D.; Cenzano, Carolina; Navarrete, Camila; Catelan, Márcio
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present results on the extra-tidal features of the Milky Way globular cluster NGC 7099, using deep gr photometry obtained with the Dark Energy Camera (DECam). We reached nearly 6 mag below the cluster's main sequence (MS) turnoff, so that we dealt with the most suitable candidates to trace any stellar structure located beyond the cluster tidal radius. From star-by-star reddening corrected color-magnitude diagrams (CMDs), we defined four adjacent strips along the MS, for which we built the respective stellar density maps, once the contamination by field stars was properly removed. The resulting, cleaned, field star stellar density maps show a short tidal tail and some scattered debris. Such extra-tidal features are hardly detected when much shallower Gaia DR2 data sets are used and the same CMD field star cleaning procedure is applied. Indeed, by using 2.5 mag below the MS turnoff of the cluster as the faintest limit (G < 20.5 mag), cluster members turned out to be distributed within the cluster's tidal radius, and some hints for field star density variations are found across a circle of radius 3.5° centered on the cluster and with similar CMD features as cluster stars. The proper motion distribution of these stars is distinguishable from that of the cluster, with some superposition, which resembles that of stars located beyond 3.5° from the cluster center.
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
Fil: Carballo Bello, Julio A.. Universidad de Tarapacá; Chile
Fil: Mora, Marcelo D.. Pontificia Universidad Católica de Chile; Chile
Fil: Cenzano, Carolina. Pontificia Universidad Católica de Chile; Chile
Fil: Navarrete, Camila. European Southern Observatory Santiago; Chile. Instituto Milenio de Astrofísica; Chile
Fil: Catelan, Márcio. Universidad Católica de Chile; Chile. Instituto Milenio de Astrofísica; Chile
Materia
METHODS: OBSERVATIONAL
TECHNIQUES: PHOTOMETRIC
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:11336/140901
Acceder
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network_name_str CONICET Digital (CONICET)
spelling The elusive tidal tails of the Milky Way globular cluster NGC 7099Piatti, Andres EduardoCarballo Bello, Julio A.Mora, Marcelo D.Cenzano, CarolinaNavarrete, CamilaCatelan, MárcioMETHODS: OBSERVATIONALTECHNIQUES: PHOTOMETRIChttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1We present results on the extra-tidal features of the Milky Way globular cluster NGC 7099, using deep gr photometry obtained with the Dark Energy Camera (DECam). We reached nearly 6 mag below the cluster's main sequence (MS) turnoff, so that we dealt with the most suitable candidates to trace any stellar structure located beyond the cluster tidal radius. From star-by-star reddening corrected color-magnitude diagrams (CMDs), we defined four adjacent strips along the MS, for which we built the respective stellar density maps, once the contamination by field stars was properly removed. The resulting, cleaned, field star stellar density maps show a short tidal tail and some scattered debris. Such extra-tidal features are hardly detected when much shallower Gaia DR2 data sets are used and the same CMD field star cleaning procedure is applied. Indeed, by using 2.5 mag below the MS turnoff of the cluster as the faintest limit (G < 20.5 mag), cluster members turned out to be distributed within the cluster's tidal radius, and some hints for field star density variations are found across a circle of radius 3.5° centered on the cluster and with similar CMD features as cluster stars. The proper motion distribution of these stars is distinguishable from that of the cluster, with some superposition, which resembles that of stars located beyond 3.5° from the cluster center.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; ArgentinaFil: Carballo Bello, Julio A.. Universidad de Tarapacá; ChileFil: Mora, Marcelo D.. Pontificia Universidad Católica de Chile; ChileFil: Cenzano, Carolina. Pontificia Universidad Católica de Chile; ChileFil: Navarrete, Camila. European Southern Observatory Santiago; Chile. Instituto Milenio de Astrofísica; ChileFil: Catelan, Márcio. Universidad Católica de Chile; Chile. Instituto Milenio de Astrofísica; ChileEDP Sciences2020-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/140901Piatti, Andres Eduardo; Carballo Bello, Julio A.; Mora, Marcelo D.; Cenzano, Carolina; Navarrete, Camila; et al.; The elusive tidal tails of the Milky Way globular cluster NGC 7099; EDP Sciences; Astronomy and Astrophysics; 643; 11-2020; 1-70004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202039012info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:46:35Zoai:ri.conicet.gov.ar:11336/140901instacron: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 10:46:35.568CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The elusive tidal tails of the Milky Way globular cluster NGC 7099
title The elusive tidal tails of the Milky Way globular cluster NGC 7099
spellingShingle The elusive tidal tails of the Milky Way globular cluster NGC 7099
Piatti, Andres Eduardo
METHODS: OBSERVATIONAL
TECHNIQUES: PHOTOMETRIC
title_short The elusive tidal tails of the Milky Way globular cluster NGC 7099
title_full The elusive tidal tails of the Milky Way globular cluster NGC 7099
title_fullStr The elusive tidal tails of the Milky Way globular cluster NGC 7099
title_full_unstemmed The elusive tidal tails of the Milky Way globular cluster NGC 7099
title_sort The elusive tidal tails of the Milky Way globular cluster NGC 7099
dc.creator.none.fl_str_mv Piatti, Andres Eduardo
Carballo Bello, Julio A.
Mora, Marcelo D.
Cenzano, Carolina
Navarrete, Camila
Catelan, Márcio
author Piatti, Andres Eduardo
author_facet Piatti, Andres Eduardo
Carballo Bello, Julio A.
Mora, Marcelo D.
Cenzano, Carolina
Navarrete, Camila
Catelan, Márcio
author_role author
author2 Carballo Bello, Julio A.
Mora, Marcelo D.
Cenzano, Carolina
Navarrete, Camila
Catelan, Márcio
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv METHODS: OBSERVATIONAL
TECHNIQUES: PHOTOMETRIC
topic METHODS: OBSERVATIONAL
TECHNIQUES: PHOTOMETRIC
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present results on the extra-tidal features of the Milky Way globular cluster NGC 7099, using deep gr photometry obtained with the Dark Energy Camera (DECam). We reached nearly 6 mag below the cluster's main sequence (MS) turnoff, so that we dealt with the most suitable candidates to trace any stellar structure located beyond the cluster tidal radius. From star-by-star reddening corrected color-magnitude diagrams (CMDs), we defined four adjacent strips along the MS, for which we built the respective stellar density maps, once the contamination by field stars was properly removed. The resulting, cleaned, field star stellar density maps show a short tidal tail and some scattered debris. Such extra-tidal features are hardly detected when much shallower Gaia DR2 data sets are used and the same CMD field star cleaning procedure is applied. Indeed, by using 2.5 mag below the MS turnoff of the cluster as the faintest limit (G < 20.5 mag), cluster members turned out to be distributed within the cluster's tidal radius, and some hints for field star density variations are found across a circle of radius 3.5° centered on the cluster and with similar CMD features as cluster stars. The proper motion distribution of these stars is distinguishable from that of the cluster, with some superposition, which resembles that of stars located beyond 3.5° from the cluster center.
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
Fil: Carballo Bello, Julio A.. Universidad de Tarapacá; Chile
Fil: Mora, Marcelo D.. Pontificia Universidad Católica de Chile; Chile
Fil: Cenzano, Carolina. Pontificia Universidad Católica de Chile; Chile
Fil: Navarrete, Camila. European Southern Observatory Santiago; Chile. Instituto Milenio de Astrofísica; Chile
Fil: Catelan, Márcio. Universidad Católica de Chile; Chile. Instituto Milenio de Astrofísica; Chile
description We present results on the extra-tidal features of the Milky Way globular cluster NGC 7099, using deep gr photometry obtained with the Dark Energy Camera (DECam). We reached nearly 6 mag below the cluster's main sequence (MS) turnoff, so that we dealt with the most suitable candidates to trace any stellar structure located beyond the cluster tidal radius. From star-by-star reddening corrected color-magnitude diagrams (CMDs), we defined four adjacent strips along the MS, for which we built the respective stellar density maps, once the contamination by field stars was properly removed. The resulting, cleaned, field star stellar density maps show a short tidal tail and some scattered debris. Such extra-tidal features are hardly detected when much shallower Gaia DR2 data sets are used and the same CMD field star cleaning procedure is applied. Indeed, by using 2.5 mag below the MS turnoff of the cluster as the faintest limit (G < 20.5 mag), cluster members turned out to be distributed within the cluster's tidal radius, and some hints for field star density variations are found across a circle of radius 3.5° centered on the cluster and with similar CMD features as cluster stars. The proper motion distribution of these stars is distinguishable from that of the cluster, with some superposition, which resembles that of stars located beyond 3.5° from the cluster center.
publishDate 2020
dc.date.none.fl_str_mv 2020-11
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/11336/140901
Piatti, Andres Eduardo; Carballo Bello, Julio A.; Mora, Marcelo D.; Cenzano, Carolina; Navarrete, Camila; et al.; The elusive tidal tails of the Milky Way globular cluster NGC 7099; EDP Sciences; Astronomy and Astrophysics; 643; 11-2020; 1-7
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/140901
identifier_str_mv Piatti, Andres Eduardo; Carballo Bello, Julio A.; Mora, Marcelo D.; Cenzano, Carolina; Navarrete, Camila; et al.; The elusive tidal tails of the Milky Way globular cluster NGC 7099; EDP Sciences; Astronomy and Astrophysics; 643; 11-2020; 1-7
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/10.1051/0004-6361/202039012
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 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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score 13.070432

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