ON Ca II emission as an indicator of the age of young stars

Inseok Song*, B. Zuckerman, M. S. Bessell

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    17 Citations (Scopus)


    Chromospheric emission in the Ca II H and K lines has often been used as an age diagnostic for solar mass stars. For 20 such stars with ages less than a few hundred megayears, we compare Ca II ages derived by Wright et al. with ages we derive based on a combination of lithium abundance, X-ray activity, and Galactic space motion. Typically, the Ca II ages are noticeably older than the lithium/X-ray ages, suggesting that a recalibration of the Ca II ages may be necessary.

    Original languageEnglish
    Pages (from-to)L125-L127
    JournalAstrophysical Journal
    Issue number2 II
    Publication statusPublished - 20 Oct 2004


    Dive into the research topics of 'ON Ca II emission as an indicator of the age of young stars'. Together they form a unique fingerprint.

    Cite this