The VMC survey. XVIII. Radial dependence of the low-mass, 0.55-0.82 Mo stellar mass function in the galactic globular cluster 47 Tucanae

Autores
Zhang, Chaoli; Li, Chengyuan; de Grijs, Richard; Bekki, Kenji; Deng, Licai; Zaggia, Simone; Rubele, Stefano; Piatti, Andres Eduardo; Cioni, María Rosa L.; Emerson, Jim; For, Bi-Qing; Ripepi, Vincenzo; Marconi, Marcella; Ivanov, Valentin D.; Chen, Li
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We use near-infrared observations obtained as part of the Visible and Infrared Survey Telescope for Astronomy (VISTA) Survey of the Magellanic Clouds (VMC), as well as two complementary Hubble Space Telescope (HST) data sets, to study the luminosity and mass functions (MFs) as a function of clustercentric radius of the main-sequence stars in the Galactic globular cluster 47 Tucanae. The HST observations indicate a relative deficit in the numbers of faint stars in the central region of the cluster compared with its periphery, for 18.75 ≤ m F606W ≤ 20.9 mag (corresponding to a stellar mass range of 0.55 < m ∗ /M o < 0.73). The stellar number counts at 6.′7 from the cluster core show a deficit for 17.62 ≤ m F606W ≤ 19.7 mag (i.e., 0.65 < m ∗ /M o < 0.82), which is consistent with expectations from mass segregation. The VMC-based stellar MFs exhibit power-law shapes for masses in the range 0.55 < m ∗ /M o < 0.82. These power laws are characterized by an almost constant slope, α. The radial distribution of the power-law slopes α thus shows evidence of the importance of both mass segregation and tidal stripping, for both the first- and second-generation stars in 47 Tuc.
Fil: Zhang, Chaoli. Chinese Academy of Sciences; República de China. Peking University; China
Fil: Li, Chengyuan. Peking University; China. Chinese Academy of Sciences; República de China
Fil: de Grijs, Richard. Peking University; China. International Space Science Institute-Beijing; China
Fil: Bekki, Kenji. The University of Western Australia; Australia
Fil: Deng, Licai. Chinese Academy of Sciences; República de China
Fil: Zaggia, Simone. INAF-Osservatorio Astronomico di Padova; Italia
Fil: Rubele, Stefano. INAF-Osservatorio Astronomico di Padova; Italia
Fil: Piatti, Andres Eduardo. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cioni, María Rosa L.. Universität Potsdam; Alemania. Leibnitz-Institut für Astrophysik Potsdam; Alemania. University Of Hertfordshire; Reino Unido
Fil: Emerson, Jim. Queen Mary University of London; Reino Unido
Fil: For, Bi-Qing. Chinese Academy of Sciences; República de China
Fil: Ripepi, Vincenzo. INAF-Osservatorio Astronomico di Capodimonte; Italia
Fil: Marconi, Marcella. INAF-Osservatorio Astronomico di Capodimonte; Italia
Fil: Ivanov, Valentin D.. European Southern Observatory; Alemania
Fil: Chen, Li. Chinese Academy of Sciences; República de China
Materia
GALAXIES: CLUSTERS: INDIVIDUAL (47 TUCANAE)
GLOBULAR CLUSTERS: GENERAL
HERTZSPRUNGRUSSELL AND CM DIAGRAMS
STARS: LOW-MASS
STARS: LUMINOSITY FUNCTION, MASS FUNCTION
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:11336/72937

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oai_identifier_str oai:ri.conicet.gov.ar:11336/72937
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The VMC survey. XVIII. Radial dependence of the low-mass, 0.55-0.82 Mo stellar mass function in the galactic globular cluster 47 TucanaeZhang, ChaoliLi, Chengyuande Grijs, RichardBekki, KenjiDeng, LicaiZaggia, SimoneRubele, StefanoPiatti, Andres EduardoCioni, María Rosa L.Emerson, JimFor, Bi-QingRipepi, VincenzoMarconi, MarcellaIvanov, Valentin D.Chen, LiGALAXIES: CLUSTERS: INDIVIDUAL (47 TUCANAE)GLOBULAR CLUSTERS: GENERALHERTZSPRUNGRUSSELL AND CM DIAGRAMSSTARS: LOW-MASSSTARS: LUMINOSITY FUNCTION, MASS FUNCTIONWe use near-infrared observations obtained as part of the Visible and Infrared Survey Telescope for Astronomy (VISTA) Survey of the Magellanic Clouds (VMC), as well as two complementary Hubble Space Telescope (HST) data sets, to study the luminosity and mass functions (MFs) as a function of clustercentric radius of the main-sequence stars in the Galactic globular cluster 47 Tucanae. The HST observations indicate a relative deficit in the numbers of faint stars in the central region of the cluster compared with its periphery, for 18.75 ≤ m F606W ≤ 20.9 mag (corresponding to a stellar mass range of 0.55 < m ∗ /M o < 0.73). The stellar number counts at 6.′7 from the cluster core show a deficit for 17.62 ≤ m F606W ≤ 19.7 mag (i.e., 0.65 < m ∗ /M o < 0.82), which is consistent with expectations from mass segregation. The VMC-based stellar MFs exhibit power-law shapes for masses in the range 0.55 < m ∗ /M o < 0.82. These power laws are characterized by an almost constant slope, α. The radial distribution of the power-law slopes α thus shows evidence of the importance of both mass segregation and tidal stripping, for both the first- and second-generation stars in 47 Tuc.Fil: Zhang, Chaoli. Chinese Academy of Sciences; República de China. Peking University; ChinaFil: Li, Chengyuan. Peking University; China. Chinese Academy of Sciences; República de ChinaFil: de Grijs, Richard. Peking University; China. International Space Science Institute-Beijing; ChinaFil: Bekki, Kenji. The University of Western Australia; AustraliaFil: Deng, Licai. Chinese Academy of Sciences; República de ChinaFil: Zaggia, Simone. INAF-Osservatorio Astronomico di Padova; ItaliaFil: Rubele, Stefano. INAF-Osservatorio Astronomico di Padova; ItaliaFil: Piatti, Andres Eduardo. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Cioni, María Rosa L.. Universität Potsdam; Alemania. Leibnitz-Institut für Astrophysik Potsdam; Alemania. University Of Hertfordshire; Reino UnidoFil: Emerson, Jim. Queen Mary University of London; Reino UnidoFil: For, Bi-Qing. Chinese Academy of Sciences; República de ChinaFil: Ripepi, Vincenzo. INAF-Osservatorio Astronomico di Capodimonte; ItaliaFil: Marconi, Marcella. INAF-Osservatorio Astronomico di Capodimonte; ItaliaFil: Ivanov, Valentin D.. European Southern Observatory; AlemaniaFil: Chen, Li. Chinese Academy of Sciences; República de ChinaIOP Publishing2015-12-14info: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/11336/72937Zhang, Chaoli; Li, Chengyuan; de Grijs, Richard; Bekki, Kenji; Deng, Licai; et al.; The VMC survey. XVIII. Radial dependence of the low-mass, 0.55-0.82 Mo stellar mass function in the galactic globular cluster 47 Tucanae; IOP Publishing; Astrophysical Journal; 815; 2; 14-12-20150004-637X1538-4357CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/0004-637X/815/2/95/metainfo:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/815/2/95info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:05:02Zoai:ri.conicet.gov.ar:11336/72937instacron: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 10:05:02.806CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The VMC survey. XVIII. Radial dependence of the low-mass, 0.55-0.82 Mo stellar mass function in the galactic globular cluster 47 Tucanae
title The VMC survey. XVIII. Radial dependence of the low-mass, 0.55-0.82 Mo stellar mass function in the galactic globular cluster 47 Tucanae
spellingShingle The VMC survey. XVIII. Radial dependence of the low-mass, 0.55-0.82 Mo stellar mass function in the galactic globular cluster 47 Tucanae
Zhang, Chaoli
GALAXIES: CLUSTERS: INDIVIDUAL (47 TUCANAE)
GLOBULAR CLUSTERS: GENERAL
HERTZSPRUNGRUSSELL AND CM DIAGRAMS
STARS: LOW-MASS
STARS: LUMINOSITY FUNCTION, MASS FUNCTION
title_short The VMC survey. XVIII. Radial dependence of the low-mass, 0.55-0.82 Mo stellar mass function in the galactic globular cluster 47 Tucanae
title_full The VMC survey. XVIII. Radial dependence of the low-mass, 0.55-0.82 Mo stellar mass function in the galactic globular cluster 47 Tucanae
title_fullStr The VMC survey. XVIII. Radial dependence of the low-mass, 0.55-0.82 Mo stellar mass function in the galactic globular cluster 47 Tucanae
title_full_unstemmed The VMC survey. XVIII. Radial dependence of the low-mass, 0.55-0.82 Mo stellar mass function in the galactic globular cluster 47 Tucanae
title_sort The VMC survey. XVIII. Radial dependence of the low-mass, 0.55-0.82 Mo stellar mass function in the galactic globular cluster 47 Tucanae
dc.creator.none.fl_str_mv Zhang, Chaoli
Li, Chengyuan
de Grijs, Richard
Bekki, Kenji
Deng, Licai
Zaggia, Simone
Rubele, Stefano
Piatti, Andres Eduardo
Cioni, María Rosa L.
Emerson, Jim
For, Bi-Qing
Ripepi, Vincenzo
Marconi, Marcella
Ivanov, Valentin D.
Chen, Li
author Zhang, Chaoli
author_facet Zhang, Chaoli
Li, Chengyuan
de Grijs, Richard
Bekki, Kenji
Deng, Licai
Zaggia, Simone
Rubele, Stefano
Piatti, Andres Eduardo
Cioni, María Rosa L.
Emerson, Jim
For, Bi-Qing
Ripepi, Vincenzo
Marconi, Marcella
Ivanov, Valentin D.
Chen, Li
author_role author
author2 Li, Chengyuan
de Grijs, Richard
Bekki, Kenji
Deng, Licai
Zaggia, Simone
Rubele, Stefano
Piatti, Andres Eduardo
Cioni, María Rosa L.
Emerson, Jim
For, Bi-Qing
Ripepi, Vincenzo
Marconi, Marcella
Ivanov, Valentin D.
Chen, Li
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv GALAXIES: CLUSTERS: INDIVIDUAL (47 TUCANAE)
GLOBULAR CLUSTERS: GENERAL
HERTZSPRUNGRUSSELL AND CM DIAGRAMS
STARS: LOW-MASS
STARS: LUMINOSITY FUNCTION, MASS FUNCTION
topic GALAXIES: CLUSTERS: INDIVIDUAL (47 TUCANAE)
GLOBULAR CLUSTERS: GENERAL
HERTZSPRUNGRUSSELL AND CM DIAGRAMS
STARS: LOW-MASS
STARS: LUMINOSITY FUNCTION, MASS FUNCTION
dc.description.none.fl_txt_mv We use near-infrared observations obtained as part of the Visible and Infrared Survey Telescope for Astronomy (VISTA) Survey of the Magellanic Clouds (VMC), as well as two complementary Hubble Space Telescope (HST) data sets, to study the luminosity and mass functions (MFs) as a function of clustercentric radius of the main-sequence stars in the Galactic globular cluster 47 Tucanae. The HST observations indicate a relative deficit in the numbers of faint stars in the central region of the cluster compared with its periphery, for 18.75 ≤ m F606W ≤ 20.9 mag (corresponding to a stellar mass range of 0.55 < m ∗ /M o < 0.73). The stellar number counts at 6.′7 from the cluster core show a deficit for 17.62 ≤ m F606W ≤ 19.7 mag (i.e., 0.65 < m ∗ /M o < 0.82), which is consistent with expectations from mass segregation. The VMC-based stellar MFs exhibit power-law shapes for masses in the range 0.55 < m ∗ /M o < 0.82. These power laws are characterized by an almost constant slope, α. The radial distribution of the power-law slopes α thus shows evidence of the importance of both mass segregation and tidal stripping, for both the first- and second-generation stars in 47 Tuc.
Fil: Zhang, Chaoli. Chinese Academy of Sciences; República de China. Peking University; China
Fil: Li, Chengyuan. Peking University; China. Chinese Academy of Sciences; República de China
Fil: de Grijs, Richard. Peking University; China. International Space Science Institute-Beijing; China
Fil: Bekki, Kenji. The University of Western Australia; Australia
Fil: Deng, Licai. Chinese Academy of Sciences; República de China
Fil: Zaggia, Simone. INAF-Osservatorio Astronomico di Padova; Italia
Fil: Rubele, Stefano. INAF-Osservatorio Astronomico di Padova; Italia
Fil: Piatti, Andres Eduardo. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cioni, María Rosa L.. Universität Potsdam; Alemania. Leibnitz-Institut für Astrophysik Potsdam; Alemania. University Of Hertfordshire; Reino Unido
Fil: Emerson, Jim. Queen Mary University of London; Reino Unido
Fil: For, Bi-Qing. Chinese Academy of Sciences; República de China
Fil: Ripepi, Vincenzo. INAF-Osservatorio Astronomico di Capodimonte; Italia
Fil: Marconi, Marcella. INAF-Osservatorio Astronomico di Capodimonte; Italia
Fil: Ivanov, Valentin D.. European Southern Observatory; Alemania
Fil: Chen, Li. Chinese Academy of Sciences; República de China
description We use near-infrared observations obtained as part of the Visible and Infrared Survey Telescope for Astronomy (VISTA) Survey of the Magellanic Clouds (VMC), as well as two complementary Hubble Space Telescope (HST) data sets, to study the luminosity and mass functions (MFs) as a function of clustercentric radius of the main-sequence stars in the Galactic globular cluster 47 Tucanae. The HST observations indicate a relative deficit in the numbers of faint stars in the central region of the cluster compared with its periphery, for 18.75 ≤ m F606W ≤ 20.9 mag (corresponding to a stellar mass range of 0.55 < m ∗ /M o < 0.73). The stellar number counts at 6.′7 from the cluster core show a deficit for 17.62 ≤ m F606W ≤ 19.7 mag (i.e., 0.65 < m ∗ /M o < 0.82), which is consistent with expectations from mass segregation. The VMC-based stellar MFs exhibit power-law shapes for masses in the range 0.55 < m ∗ /M o < 0.82. These power laws are characterized by an almost constant slope, α. The radial distribution of the power-law slopes α thus shows evidence of the importance of both mass segregation and tidal stripping, for both the first- and second-generation stars in 47 Tuc.
publishDate 2015
dc.date.none.fl_str_mv 2015-12-14
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/11336/72937
Zhang, Chaoli; Li, Chengyuan; de Grijs, Richard; Bekki, Kenji; Deng, Licai; et al.; The VMC survey. XVIII. Radial dependence of the low-mass, 0.55-0.82 Mo stellar mass function in the galactic globular cluster 47 Tucanae; IOP Publishing; Astrophysical Journal; 815; 2; 14-12-2015
0004-637X
1538-4357
CONICET Digital
CONICET
url http://hdl.handle.net/11336/72937
identifier_str_mv Zhang, Chaoli; Li, Chengyuan; de Grijs, Richard; Bekki, Kenji; Deng, Licai; et al.; The VMC survey. XVIII. Radial dependence of the low-mass, 0.55-0.82 Mo stellar mass function in the galactic globular cluster 47 Tucanae; IOP Publishing; Astrophysical Journal; 815; 2; 14-12-2015
0004-637X
1538-4357
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://iopscience.iop.org/article/10.1088/0004-637X/815/2/95/meta
info:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/815/2/95
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 IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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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