Stellar chronology with white dwarfs in wide binaries

Silvia Catalan, A. Garces, I. Ribas, J. Isern, E. Garcia-Berro

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    White dwarfs are the evolutionary end product of stars with low and intermediate masses. The evolution of white dwarfs can be understood as a cooling process, which is relatively well known at the moment;. For this reason, wide binaries containing white dwarfs are a powerful tool to constrain stellar ages. We have studied several wide binaries containing white dwarf.,,, with two different purposes: when the age of the companion of the white dwarf can be determined with accuracy, we use the binary to improve the knowledge about the white dwarf member. On the contrary, if the companion is a low-mass star with no age indicator available, the white dwarf member itself is used to calibrate the age of the system. In this contribution we present some results rising both methodologies to constrain the ages of wide binaries.

    Original languageEnglish
    Title of host publicationThe Ages of Stars
    Subtitle of host publicationProcs of IAU
    EditorsEE Mamajek, DR Soderblom, RFG Wyse
    Place of PublicationCAMBRIDGE
    PublisherCambridge University Press
    Pages307-314
    Number of pages8
    Volume4
    ISBN (Print)978-0-521-88989-6
    DOIs
    Publication statusPublished - 2009
    Event258th Symposium of the International-Astronomical-Union - Baltimore
    Duration: 13 Oct 200817 Oct 2008

    Publication series

    NameIAU Symposium
    PublisherCambridge University Press
    VolumeS258

    Conference

    Conference258th Symposium of the International-Astronomical-Union
    CityBaltimore
    Period13/10/0817/10/08

    Keywords

    • stars: low-mass
    • stars: white dwarfs
    • stars: binaries: visual
    • stars: activity
    • stars: evolution
    • FINAL MASS RELATION
    • STARS
    • AGES
    • DIAGNOSTICS

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