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Age and mass of main sequence A-Type stars
R. Asiain ,
J. Torra and
Received 16 July 1996 / Accepted 20 November 1996
We study the individual assignation of stellar ages and masses of Main Sequence A type stars from Strömgren photometry and stellar evolutionary models. A detailed evaluation of the errors involved in the determination of these parameters is also presented; the range where typical errors are found is 10-30% in age, and 7-15% in mass.
A test using accurate data on fundamental parameters of detached, double lined eclipsing binary systems allows us to evaluate the efficiency of several sets of recent stellar evolutionary models in describing A type stars. The models that consider the overshooting effect on the convective layers have been found to be the most realistic.
Key words: stars: fundamental parameters stars: HR diagram stars: evolution stars: early-type
Send offprint requests to: R. Asiain
Online publication: June 30, 1998