A consistency test of white dwarf and main sequence ages: NGC 6791
- Autores
- García Berro, E.; Torres, S.; Isern, J.; Salaris, M.; Córsico, Alejandro Hugo; Althaus, Leandro Gabriel
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- NGC 6791 is an open cluster that it is so close to us that can be imaged down to very faint luminosities. The main sequence turn-off age (∼8 Gyr) and the age derived from the cut-off of the white dwarf luminosity function (∼6 Gyr) were found to be significantly different. Here we demonstrate that the origin of this age discrepancy lies in an incorrect evaluation of the white dwarf cooling ages, and we show that when the relevant physical separation processes are included in the calculation of white dwarf sequences both ages are coincident.
Facultad de Ciencias Astronómicas y Geofísicas - Materia
-
Ciencias Astronómicas
white dwarfs - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/85567
Ver los metadatos del registro completo
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A consistency test of white dwarf and main sequence ages: NGC 6791García Berro, E.Torres, S.Isern, J.Salaris, M.Córsico, Alejandro HugoAlthaus, Leandro GabrielCiencias Astronómicaswhite dwarfsNGC 6791 is an open cluster that it is so close to us that can be imaged down to very faint luminosities. The main sequence turn-off age (∼8 Gyr) and the age derived from the cut-off of the white dwarf luminosity function (∼6 Gyr) were found to be significantly different. Here we demonstrate that the origin of this age discrepancy lies in an incorrect evaluation of the white dwarf cooling ages, and we show that when the relevant physical separation processes are included in the calculation of white dwarf sequences both ages are coincident.Facultad de Ciencias Astronómicas y Geofísicas2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/85567enginfo:eu-repo/semantics/altIdentifier/issn/2101-6275info:eu-repo/semantics/altIdentifier/doi/10.1051/epjconf/20134305003info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc/4.0/Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:30Zoai:sedici.unlp.edu.ar:10915/85567Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:31.072SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
A consistency test of white dwarf and main sequence ages: NGC 6791 |
| title |
A consistency test of white dwarf and main sequence ages: NGC 6791 |
| spellingShingle |
A consistency test of white dwarf and main sequence ages: NGC 6791 García Berro, E. Ciencias Astronómicas white dwarfs |
| title_short |
A consistency test of white dwarf and main sequence ages: NGC 6791 |
| title_full |
A consistency test of white dwarf and main sequence ages: NGC 6791 |
| title_fullStr |
A consistency test of white dwarf and main sequence ages: NGC 6791 |
| title_full_unstemmed |
A consistency test of white dwarf and main sequence ages: NGC 6791 |
| title_sort |
A consistency test of white dwarf and main sequence ages: NGC 6791 |
| dc.creator.none.fl_str_mv |
García Berro, E. Torres, S. Isern, J. Salaris, M. Córsico, Alejandro Hugo Althaus, Leandro Gabriel |
| author |
García Berro, E. |
| author_facet |
García Berro, E. Torres, S. Isern, J. Salaris, M. Córsico, Alejandro Hugo Althaus, Leandro Gabriel |
| author_role |
author |
| author2 |
Torres, S. Isern, J. Salaris, M. Córsico, Alejandro Hugo Althaus, Leandro Gabriel |
| author2_role |
author author author author author |
| dc.subject.none.fl_str_mv |
Ciencias Astronómicas white dwarfs |
| topic |
Ciencias Astronómicas white dwarfs |
| dc.description.none.fl_txt_mv |
NGC 6791 is an open cluster that it is so close to us that can be imaged down to very faint luminosities. The main sequence turn-off age (∼8 Gyr) and the age derived from the cut-off of the white dwarf luminosity function (∼6 Gyr) were found to be significantly different. Here we demonstrate that the origin of this age discrepancy lies in an incorrect evaluation of the white dwarf cooling ages, and we show that when the relevant physical separation processes are included in the calculation of white dwarf sequences both ages are coincident. Facultad de Ciencias Astronómicas y Geofísicas |
| description |
NGC 6791 is an open cluster that it is so close to us that can be imaged down to very faint luminosities. The main sequence turn-off age (∼8 Gyr) and the age derived from the cut-off of the white dwarf luminosity function (∼6 Gyr) were found to be significantly different. Here we demonstrate that the origin of this age discrepancy lies in an incorrect evaluation of the white dwarf cooling ages, and we show that when the relevant physical separation processes are included in the calculation of white dwarf sequences both ages are coincident. |
| publishDate |
2013 |
| dc.date.none.fl_str_mv |
2013 |
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http://sedici.unlp.edu.ar/handle/10915/85567 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/2101-6275 info:eu-repo/semantics/altIdentifier/doi/10.1051/epjconf/20134305003 |
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info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc/4.0/ Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by-nc/4.0/ Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) |
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