Signatures of tidal disruption in the Milky Way globular cluster NGC 6981 (M72)

Autores
Piatti, Andres Eduardo; Mestre, Martin Federico; Carballo Bello, Julio A.; Carpintero, Daniel Diego; Navarrete, Camila; Mora, Marcelo D.; Cenzano, Carolina
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the outer regions of the Milky Way globular cluster NGC 6981 based on publicly available BV photometry and new Dark Energy Camera (DECam) observations, both of which reach nearly 4 mag below the cluster main sequence (MS) turnoff. While the BV data sets reveal the present of extra-tidal features around the cluster, the much larger field of view of the DECam observations allowed us to identify some other tidal features, which extend from the cluster toward the opposite direction to the Milky Way center. Such structural features of clusters arise from stellar density maps built using MS stars, following a cleaning of the cluster color-magnitude diagram to remove the contamination of field stars. We also performed N-body simulations in order to help us to understand the spatial distribution of the extra-tidal debris. The outcomes reveal the presence of long trailing and leading tails that are mostly parallel to the direction of the cluster velocity vector. We find that the cluster loses most of its mass by tidal disruption during its perigalactic passages, each of which lasted nearly 20 Myr. Hence, a decrease in the density of escaping stars near the cluster is expected from our N-body simulations, which, in turn, means that stronger extra-tidal features could be found by exploring much larger areas around NGC 6891.
Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. 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: Mestre, Martin Federico. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Carballo Bello, Julio A.. Universidad de Tarapacá; Chile
Fil: Carpintero, Daniel Diego. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Navarrete, Camila. Pontificia Universidad Católica de Chile; Chile
Fil: Mora, Marcelo D.. Pontificia Universidad Católica de Chile. Facultad de Física; Chile
Fil: Cenzano, Carolina. Pontificia Universidad Católica de Chile. Facultad de Física; Chile
Materia
globular clusters: individual: NGC 6981
techniques: photometric
methods: numerical
Astrophysics of Galaxies
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:11336/169496
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Signatures of tidal disruption in the Milky Way globular cluster NGC 6981 (M72)Piatti, Andres EduardoMestre, Martin FedericoCarballo Bello, Julio A.Carpintero, Daniel DiegoNavarrete, CamilaMora, Marcelo D.Cenzano, Carolinaglobular clusters: individual: NGC 6981techniques: photometricmethods: numericalAstrophysics of Galaxieshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the outer regions of the Milky Way globular cluster NGC 6981 based on publicly available BV photometry and new Dark Energy Camera (DECam) observations, both of which reach nearly 4 mag below the cluster main sequence (MS) turnoff. While the BV data sets reveal the present of extra-tidal features around the cluster, the much larger field of view of the DECam observations allowed us to identify some other tidal features, which extend from the cluster toward the opposite direction to the Milky Way center. Such structural features of clusters arise from stellar density maps built using MS stars, following a cleaning of the cluster color-magnitude diagram to remove the contamination of field stars. We also performed N-body simulations in order to help us to understand the spatial distribution of the extra-tidal debris. The outcomes reveal the presence of long trailing and leading tails that are mostly parallel to the direction of the cluster velocity vector. We find that the cluster loses most of its mass by tidal disruption during its perigalactic passages, each of which lasted nearly 20 Myr. Hence, a decrease in the density of escaping stars near the cluster is expected from our N-body simulations, which, in turn, means that stronger extra-tidal features could be found by exploring much larger areas around NGC 6891.Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. 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: Mestre, Martin Federico. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Carballo Bello, Julio A.. Universidad de Tarapacá; ChileFil: Carpintero, Daniel Diego. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Navarrete, Camila. Pontificia Universidad Católica de Chile; ChileFil: Mora, Marcelo D.. Pontificia Universidad Católica de Chile. Facultad de Física; ChileFil: Cenzano, Carolina. Pontificia Universidad Católica de Chile. Facultad de Física; ChileEDP Sciences2021-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/169496Piatti, Andres Eduardo; Mestre, Martin Federico; Carballo Bello, Julio A.; Carpintero, Daniel Diego; Navarrete, Camila; et al.; Signatures of tidal disruption in the Milky Way globular cluster NGC 6981 (M72); EDP Sciences; Astronomy and Astrophysics; 646; 1-2021; 176-1840004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/202040038info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202040038info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:03Zoai:ri.conicet.gov.ar:11336/169496instacron: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 09:47:03.867CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Signatures of tidal disruption in the Milky Way globular cluster NGC 6981 (M72)
title Signatures of tidal disruption in the Milky Way globular cluster NGC 6981 (M72)
spellingShingle Signatures of tidal disruption in the Milky Way globular cluster NGC 6981 (M72)
Piatti, Andres Eduardo
globular clusters: individual: NGC 6981
techniques: photometric
methods: numerical
Astrophysics of Galaxies
title_short Signatures of tidal disruption in the Milky Way globular cluster NGC 6981 (M72)
title_full Signatures of tidal disruption in the Milky Way globular cluster NGC 6981 (M72)
title_fullStr Signatures of tidal disruption in the Milky Way globular cluster NGC 6981 (M72)
title_full_unstemmed Signatures of tidal disruption in the Milky Way globular cluster NGC 6981 (M72)
title_sort Signatures of tidal disruption in the Milky Way globular cluster NGC 6981 (M72)
dc.creator.none.fl_str_mv Piatti, Andres Eduardo
Mestre, Martin Federico
Carballo Bello, Julio A.
Carpintero, Daniel Diego
Navarrete, Camila
Mora, Marcelo D.
Cenzano, Carolina
author Piatti, Andres Eduardo
author_facet Piatti, Andres Eduardo
Mestre, Martin Federico
Carballo Bello, Julio A.
Carpintero, Daniel Diego
Navarrete, Camila
Mora, Marcelo D.
Cenzano, Carolina
author_role author
author2 Mestre, Martin Federico
Carballo Bello, Julio A.
Carpintero, Daniel Diego
Navarrete, Camila
Mora, Marcelo D.
Cenzano, Carolina
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv globular clusters: individual: NGC 6981
techniques: photometric
methods: numerical
Astrophysics of Galaxies
topic globular clusters: individual: NGC 6981
techniques: photometric
methods: numerical
Astrophysics of Galaxies
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study the outer regions of the Milky Way globular cluster NGC 6981 based on publicly available BV photometry and new Dark Energy Camera (DECam) observations, both of which reach nearly 4 mag below the cluster main sequence (MS) turnoff. While the BV data sets reveal the present of extra-tidal features around the cluster, the much larger field of view of the DECam observations allowed us to identify some other tidal features, which extend from the cluster toward the opposite direction to the Milky Way center. Such structural features of clusters arise from stellar density maps built using MS stars, following a cleaning of the cluster color-magnitude diagram to remove the contamination of field stars. We also performed N-body simulations in order to help us to understand the spatial distribution of the extra-tidal debris. The outcomes reveal the presence of long trailing and leading tails that are mostly parallel to the direction of the cluster velocity vector. We find that the cluster loses most of its mass by tidal disruption during its perigalactic passages, each of which lasted nearly 20 Myr. Hence, a decrease in the density of escaping stars near the cluster is expected from our N-body simulations, which, in turn, means that stronger extra-tidal features could be found by exploring much larger areas around NGC 6891.
Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. 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: Mestre, Martin Federico. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Carballo Bello, Julio A.. Universidad de Tarapacá; Chile
Fil: Carpintero, Daniel Diego. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Navarrete, Camila. Pontificia Universidad Católica de Chile; Chile
Fil: Mora, Marcelo D.. Pontificia Universidad Católica de Chile. Facultad de Física; Chile
Fil: Cenzano, Carolina. Pontificia Universidad Católica de Chile. Facultad de Física; Chile
description We study the outer regions of the Milky Way globular cluster NGC 6981 based on publicly available BV photometry and new Dark Energy Camera (DECam) observations, both of which reach nearly 4 mag below the cluster main sequence (MS) turnoff. While the BV data sets reveal the present of extra-tidal features around the cluster, the much larger field of view of the DECam observations allowed us to identify some other tidal features, which extend from the cluster toward the opposite direction to the Milky Way center. Such structural features of clusters arise from stellar density maps built using MS stars, following a cleaning of the cluster color-magnitude diagram to remove the contamination of field stars. We also performed N-body simulations in order to help us to understand the spatial distribution of the extra-tidal debris. The outcomes reveal the presence of long trailing and leading tails that are mostly parallel to the direction of the cluster velocity vector. We find that the cluster loses most of its mass by tidal disruption during its perigalactic passages, each of which lasted nearly 20 Myr. Hence, a decrease in the density of escaping stars near the cluster is expected from our N-body simulations, which, in turn, means that stronger extra-tidal features could be found by exploring much larger areas around NGC 6891.
publishDate 2021
dc.date.none.fl_str_mv 2021-01
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/11336/169496
Piatti, Andres Eduardo; Mestre, Martin Federico; Carballo Bello, Julio A.; Carpintero, Daniel Diego; Navarrete, Camila; et al.; Signatures of tidal disruption in the Milky Way globular cluster NGC 6981 (M72); EDP Sciences; Astronomy and Astrophysics; 646; 1-2021; 176-184
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/169496
identifier_str_mv Piatti, Andres Eduardo; Mestre, Martin Federico; Carballo Bello, Julio A.; Carpintero, Daniel Diego; Navarrete, Camila; et al.; Signatures of tidal disruption in the Milky Way globular cluster NGC 6981 (M72); EDP Sciences; Astronomy and Astrophysics; 646; 1-2021; 176-184
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/url/https://www.aanda.org/10.1051/0004-6361/202040038
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202040038
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
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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