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
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/72937
Ver los metadatos del registro completo
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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 Técnicas2025-10-22T11:34:44Zoai: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:34982025-10-22 11:34:44.398CONICET 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 |
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info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
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openAccess |
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https://creativecommons.org/licenses/by/2.5/ar/ |
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application/pdf application/pdf application/pdf |
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IOP Publishing |
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IOP Publishing |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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