A consistency test of white dwarf and main sequence ages: NGC 6791

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 th...

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Detalles Bibliográficos
Autores principales: García Berro, E., Torres, S., Isern, J., Salaris, M., Córsico, Alejandro Hugo, Althaus, Leandro Gabriel
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Ciencias Astronómicas
white dwarfs
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85567
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85567
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
white dwarfs
spellingShingle Ciencias Astronómicas
white dwarfs
García Berro, E.
Torres, S.
Isern, J.
Salaris, M.
Córsico, Alejandro Hugo
Althaus, Leandro Gabriel
A consistency test of white dwarf and main sequence ages: NGC 6791
topic_facet Ciencias Astronómicas
white dwarfs
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.
format Articulo
Articulo
author García Berro, E.
Torres, S.
Isern, J.
Salaris, M.
Córsico, Alejandro Hugo
Althaus, Leandro Gabriel
author_facet García Berro, E.
Torres, S.
Isern, J.
Salaris, M.
Córsico, Alejandro Hugo
Althaus, Leandro Gabriel
author_sort García Berro, E.
title A consistency test of white dwarf and main sequence ages: NGC 6791
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 consistency test of white dwarf and main sequence ages: ngc 6791
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/85567
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