SUMMARY LIGHT CURVE ANALYSIS OF THE T TAURI TYPE STAR AS205

Abstract

Phase light curves have been build based on photometric materials, obtained in 10 colors for dierent (B0-F0) magnetic CP stars. The light curves observed in the form of a double wave for most stars. The changes in the light curves occur in counter-phase, in dierent bands for some of the investigated late CP stars (A2-F0) of the SrCrEu type. It is shown, that the brightness variability in antiphase is explained by the energy blocking in the region λλ5000 -5500 ÅÅ(in range of depression λ5200Å), created mainly by rare earth elements, the excesses are reaching in the atmosphere of these stars 4.0 - 6.0 dex