Modeling of Photometric Effect Caused by Planet Motion in the Red Giant Atmosphere

Abstract

The effect of red giant luminosity changing caused by planet motion in its atmosphere was simulated numerically. It was suggested that the effect value and opacity of atmosphere were inverse proportional to the distance from center of the star. The results were obtained for different points of planet’s orbit and shown as dependencies of luminosity vs. time. Curves were obtained for different values of such parameters as major semiaxis, excentricity, opacity coefficient and for different orientation of the orbit in space. The results were compared with photometric behavior of Mira-type variable stars.