The dual nature of the tidal tails of NGC 5904 (M5)
- Autores
- Piatti, Andres Eduardo
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The tangential velocity dispersion of stars belonging to the Milky Way globular clus-ter’s tidal tails has recently been found from N-body simulations to be a parameterthat distinguishes between cored and cuspy profiles of low-mass dwarf galaxy darkmatter subhaloes where that globular cluster formed, and the in-situ formation sce-nario. In this context, we discovered that M5’s tidal tails are composed by stars at twodifferent metallicity regimes ([Fe/H] ∼ -1.4 dex and -2.0 dex). The more metal-richtidal tail stars are of the same metal content than M5’s members and have a tangen-tial velocity dispersion that coincides with the predicted value for a cuspy formationscenario (subhalo mass ∼ 10 9 M ). The more metal-poor stars, that are found alongthe entire M5 tidal tails and have similar distributions to their more metal-rich coun-terparts in the M5 colour-magnitude diagram and orbit trajectory, have a tangentialvelocity dispersion that refers to a cored subhalo (mass ∼ 10 9 M ) or an in-situ for-mation scenario. In order to reconcile the dual distribution of M5 tidal tail stars, inkinematics and chemistry, we propose that M5 collided with another more metal-poorand less massive globular cluster anytime before or after it was accreted into the MilkyWay.
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
- Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/232537
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The dual nature of the tidal tails of NGC 5904 (M5)Piatti, Andres Eduardoclusterhttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1The tangential velocity dispersion of stars belonging to the Milky Way globular clus-ter’s tidal tails has recently been found from N-body simulations to be a parameterthat distinguishes between cored and cuspy profiles of low-mass dwarf galaxy darkmatter subhaloes where that globular cluster formed, and the in-situ formation sce-nario. In this context, we discovered that M5’s tidal tails are composed by stars at twodifferent metallicity regimes ([Fe/H] ∼ -1.4 dex and -2.0 dex). The more metal-richtidal tail stars are of the same metal content than M5’s members and have a tangen-tial velocity dispersion that coincides with the predicted value for a cuspy formationscenario (subhalo mass ∼ 10 9 M ). The more metal-poor stars, that are found alongthe entire M5 tidal tails and have similar distributions to their more metal-rich coun-terparts in the M5 colour-magnitude diagram and orbit trajectory, have a tangentialvelocity dispersion that refers to a cored subhalo (mass ∼ 10 9 M ) or an in-situ for-mation scenario. In order to reconcile the dual distribution of M5 tidal tail stars, inkinematics and chemistry, we propose that M5 collided with another more metal-poorand less massive globular cluster anytime before or after it was accreted into the MilkyWay.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; ArgentinaOxford University Press2023-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/232537Piatti, Andres Eduardo; The dual nature of the tidal tails of NGC 5904 (M5); Oxford University Press; Monthly Notices of the Royal Astronomical Society Letters; 525; 1; 7-2023; 72-751745-3933CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnrasl/article/525/1/L72/7225939info:eu-repo/semantics/altIdentifier/doi/10.1093/mnrasl/slad098info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:43:19Zoai:ri.conicet.gov.ar:11336/232537instacron: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 10:43:19.483CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
The dual nature of the tidal tails of NGC 5904 (M5) |
title |
The dual nature of the tidal tails of NGC 5904 (M5) |
spellingShingle |
The dual nature of the tidal tails of NGC 5904 (M5) Piatti, Andres Eduardo cluster |
title_short |
The dual nature of the tidal tails of NGC 5904 (M5) |
title_full |
The dual nature of the tidal tails of NGC 5904 (M5) |
title_fullStr |
The dual nature of the tidal tails of NGC 5904 (M5) |
title_full_unstemmed |
The dual nature of the tidal tails of NGC 5904 (M5) |
title_sort |
The dual nature of the tidal tails of NGC 5904 (M5) |
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 |
topic |
cluster |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.7 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The tangential velocity dispersion of stars belonging to the Milky Way globular clus-ter’s tidal tails has recently been found from N-body simulations to be a parameterthat distinguishes between cored and cuspy profiles of low-mass dwarf galaxy darkmatter subhaloes where that globular cluster formed, and the in-situ formation sce-nario. In this context, we discovered that M5’s tidal tails are composed by stars at twodifferent metallicity regimes ([Fe/H] ∼ -1.4 dex and -2.0 dex). The more metal-richtidal tail stars are of the same metal content than M5’s members and have a tangen-tial velocity dispersion that coincides with the predicted value for a cuspy formationscenario (subhalo mass ∼ 10 9 M ). The more metal-poor stars, that are found alongthe entire M5 tidal tails and have similar distributions to their more metal-rich coun-terparts in the M5 colour-magnitude diagram and orbit trajectory, have a tangentialvelocity dispersion that refers to a cored subhalo (mass ∼ 10 9 M ) or an in-situ for-mation scenario. In order to reconcile the dual distribution of M5 tidal tail stars, inkinematics and chemistry, we propose that M5 collided with another more metal-poorand less massive globular cluster anytime before or after it was accreted into the MilkyWay. 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 |
The tangential velocity dispersion of stars belonging to the Milky Way globular clus-ter’s tidal tails has recently been found from N-body simulations to be a parameterthat distinguishes between cored and cuspy profiles of low-mass dwarf galaxy darkmatter subhaloes where that globular cluster formed, and the in-situ formation sce-nario. In this context, we discovered that M5’s tidal tails are composed by stars at twodifferent metallicity regimes ([Fe/H] ∼ -1.4 dex and -2.0 dex). The more metal-richtidal tail stars are of the same metal content than M5’s members and have a tangen-tial velocity dispersion that coincides with the predicted value for a cuspy formationscenario (subhalo mass ∼ 10 9 M ). The more metal-poor stars, that are found alongthe entire M5 tidal tails and have similar distributions to their more metal-rich coun-terparts in the M5 colour-magnitude diagram and orbit trajectory, have a tangentialvelocity dispersion that refers to a cored subhalo (mass ∼ 10 9 M ) or an in-situ for-mation scenario. In order to reconcile the dual distribution of M5 tidal tail stars, inkinematics and chemistry, we propose that M5 collided with another more metal-poorand less massive globular cluster anytime before or after it was accreted into the MilkyWay. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07 |
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/11336/232537 Piatti, Andres Eduardo; The dual nature of the tidal tails of NGC 5904 (M5); Oxford University Press; Monthly Notices of the Royal Astronomical Society Letters; 525; 1; 7-2023; 72-75 1745-3933 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/232537 |
identifier_str_mv |
Piatti, Andres Eduardo; The dual nature of the tidal tails of NGC 5904 (M5); Oxford University Press; Monthly Notices of the Royal Astronomical Society Letters; 525; 1; 7-2023; 72-75 1745-3933 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://academic.oup.com/mnrasl/article/525/1/L72/7225939 info:eu-repo/semantics/altIdentifier/doi/10.1093/mnrasl/slad098 |
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 |
Oxford University Press |
publisher.none.fl_str_mv |
Oxford University Press |
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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