Wave Optics and Image Formation in Gravitational Lensing

• 作者: Yasusada Nambu
• 来源期刊: 天文学与天体物理学国际期刊(英文)
• 学科: 地球科学
• 关键词: WAVE OPTICS IMAGE FORMATION GRAVITATIONAL LENS
• 年，卷（期）: 2013,（1）
• 页码范围: 1-7
• 页数: 7页
• 分类号: P1

摘要

We investigate image formations in gravitational lensing systems using wave optics. Applying the Fresnel-Kirchhoff diffraction formula to waves scattered by a gravitational potential of a lens object, we demonstrate how images of source objects are obtained directly from wave functions without using a lens equation for gravitational lensing. As an example of image formation in gravitational lensing, images of a point source by a point mass gravitational lens are presented. These images reduce to those obtained by a ray tracing method in the geometric optics limit.