Diagram of the gravitational acceleration model with the two galaxies initially located at the apocenter of the elliptical orbit. The circles filled in red and blue represent the main and companion galaxies, respectively. The circles filled in yellow represent the NLRs of the main galaxy. The black arrows represent the gravitational force vectors. The green dashed line represents the clockwise elliptical orbit, with θ marking the rotation angle. System I indicates the initial positions of the galaxies in the simulation, aligned along LoS, while system II indicates their final positions. The arrow in the left region marks LoS.