Evento

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

García Berro, E.; Torres, S.; Isern, J.; Salaris, M.; Corsico, Alejandro HugoIcon ; Althaus, Leandro GabrielIcon
Tipo del evento: Otro
Nombre del evento: 40th Liege International Astrophysical Colloquium
Fecha del evento: 07/2012
Institución Organizadora: Université de Liège;
Título del Libro: 40th Liege International Astrophysical Colloquium
Editorial: EDP Sciences
ISBN: 978-2-7598-0969-1
Idioma: Inglés
Clasificación temática:

Resumen

NGC 6791 is an open cluster that it is so close to us that can be imaged down to very faintluminosities. 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
Palabras clave: NGC 6791
 
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Licencia
info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/249020
URL: http://www.epj-conferences.org/index.php?option=com_toc&url=%2Farticles%2Fepjcon
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Citación
A consistency test of white dwarf and main sequence ages: NGC 6791; 40th Liege International Astrophysical Colloquium; Liége; Bélgica; 2012; 1-3
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