Light curve variation caused by accretion column switching stellar hemispheres

Abstract

I use two-dimensional axisymmetric numerical simulations of star-disk magnetospheric interaction to construct a three-dimensional model of hot spots on the star created by infalling accretion columns. The intensity of emitted radiation is computed with minimal assumptions, as seen by observers at infinity from the different angles. In the illustrative examples, shown is a change in the intensity curve with changes in the geometry of the model, and also a change in results with modification in the physical parameters in the simulation.