Gravitational lensing by a gravitational wave is considered. We notice that, although the final and initial directions of photons coincide, there occurs a displacement between the final and initial trajectories. This displacement is calculated analytically for a plane gravitational wave pulse. Observational estimates are discussed.
机构:
Tokyo Inst Technol, Dept Phys, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528551, JapanTokyo Inst Technol, Dept Phys, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528551, Japan