The age of the Galaxy's thick disk

    Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceedingPeer review

    Sammanfattning

    We discuss the age of the stellar disks in the solar neighborhood. After reviewing the various methods for age dating, we discuss current estimates of the ages of both the thin- and the thick disks. We present preliminary results for kineymatically-selected stars that belong to the thin- as well as the thick disk. All of these dwarf and sub-giant stars have been studied spectroscopically and we have derived both elemental abundances as well as ages for them. A general conclusion is that in the solar neighborhood, on average, the thick disk is older than the thin disk. However, we caution that the exclusion of stars with effective temperatures around 6500 K might result in a biased view of the full age distribution for the stars in the thick disk.
    Originalspråkengelska
    Titel på värdpublikationProceedings of the International Astronomical Union, IAU Proceedings
    FörlagCambridge University Press
    Sidor23-30
    Volym258
    DOI
    StatusPublished - 2009
    EvenemangAges of stars - Baltimore, MD
    Varaktighet: 2008 okt. 132008 okt. 17

    Publikationsserier

    Namn
    Volym258
    ISSN (tryckt)1743-9221
    ISSN (elektroniskt)1743-9213

    Konferens

    KonferensAges of stars
    Period2008/10/132008/10/17

    Ämnesklassifikation (UKÄ)

    • Astronomi, astrofysik och kosmologi

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