Age and mass of main sequence A-Type stars.

Details Age and mass of main sequence A-Type stars. Age and mass of main sequence A-Type stars.

Jun 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...322..147a&link_type=abstract

Astronomy and Astrophysics, v.322, p.147-154

Astronomy and Astrophysics

Astrophysics

12

Stars: Fundamental Parameters, Stars: Hr Diagram, Stars: Evolution, Stars: Early-Type

Scientific paper

We study the individual assignation of stellar ages and masses of Main Sequence A type stars from Stroemgren 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.

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