G-dwarf kinematics and star formation.

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

An evolutionary scenario for star formation in the solar neighbourhood was choosen with the help of the G-dwarfs age distribution. The age calibration for eccentricities of stellar orbits was used. As shown by a comparison with simple models, the model with constant rate of star formation is adequate to the observations. But this result is distorted by insufficient allowance for stars with large orbit inclination relative to the Galactic plane. A better agreement with observations of the hypothesis on the initial bursts of star formation will be achieved if this effect is taken into account.

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