The Turn-Off Point for the Field F-Stars Revealed - the Age of the Galactic Disk

Details The Turn-Off Point for the Field F-Stars Revealed - the Age of the Galactic Disk The Turn-Off Point for the Field F-Stars Revealed - the Age of the Galactic Disk

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987atsir1485....1m&link_type=abstract

Astronomicheskii Tsirkulyar NO. 1485/APR, 1987

Astronomy and Astrophysics

Astronomy

2

Scientific paper

Is it possible to find the main sequence turn-off point of the oldest field stars and to define the age of the galactic disk from it? The authors have used a sample of 5000 F stars within 80 pc with uvby-photometry from B. Hauck, M. Mermilliod (1985). The sample has been divided into eight metallicity groups, within -0.6 ≤ [Fe/H] ≤ +0.3. They determine the age of the galactic disk just as ages of clusters. The age is 10 (or 6) Gyrs.

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